Table of Contents: Lexmark C746n, C746dn, C746dtn, C748e, C748de, and C748dte 5026-3xx, 5xx
Table of Contents: Lexmark C746n, C746dn, C746dtn, C748e, C748de, and C748dte 5026-3xx, 5xx
Table of Contents: Lexmark C746n, C746dn, C746dtn, C748e, C748de, and C748dte 5026-3xx, 5xx
5026-3xx, 5xx
• Table of contents
• Start diagnostics
• Trademarks
• Index
The following paragraph does not apply to any country where such provisions are inconsistent with local law:
LEXMARK INTERNATIONAL, INC. PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or
implied warranties in certain transactions; therefore, this statement may not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the
information herein; these changes will be incorporated in later editions. Improvements or changes in the products or the
programs described may be made at any time.
Comments may be addressed to Lexmark International, Inc., Department D22A/032-2, 740 West New Circle Road,
Lexington, Kentucky 40550, U.S.A or e-mail at ServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any
of the information you supply in any way it believes appropriate without incurring any obligation to you.
References in this publication to products, programs, or services do not imply that the manufacturer intends to make these
available in all countries in which it operates. Any reference to a product, program, or service is not intended to state or
imply that only that product, program, or service may be used. Any functionally equivalent product, program, or service that
does not infringe any existing intellectual property right may be used instead. Evaluation and verification of operation in
conjunction with other products, programs, or services, except those expressly designated by the manufacturer, are the
user’s responsibility.
Lexmark, Lexmark with diamond design, and MarkNet are trademarks of Lexmark International, Inc., registered in the
United States and/or other countries.
PrintCryption is a trademark of Lexmark International, Inc.
PCL® is a registered trademark of the Hewlett-Packard Company.
All other trademarks are the property of their respective owners.
P/N 12G2599
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144.xx—Motor (EP drive assembly middle cartridge) error service check . . . . . . . . . . . . . . . . .2-52 Previous
145.xx—Motor (EP drive assembly bottom cartridge) error service check . . . . . . . . . . . . . . . . .2-54
146.xx, 148.xx—Motor (MPF/duplex) error service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55
147.xx, 906.05-906.08, 920.01—POST (power-on self test) aligner error service check . . . . . . 2-57
155.xx—Cam motor error service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58
156.xx—COD (Color On Demand) motor service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-60
160.xx, 161.xx—Motor Error (option tray 2) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-60 Next
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920.11—POST (power-on self test)—Two toner sensors not connected error service check 2-106 Previous
920.12—POST (power-on self test)—One toner sensor not connected error service check . 2-108
920.13—POST (power-on self test) cartridge motor 1 not connected error service check . . 2-109
920.14—POST (power-on self test)—Cartridge motor 2 not connected error service check . 2-110
920.15, 920.20—POST (power-on self test)—Bad transfer module NVRAM data error service check
2-111
920.16—POST (power-on self test)—Bad printhead NVRAM data error service check . . . . . 2-111 Next
920.17—POST (power-on self test)—Output bin cable not connected error service check . . 2-112
920.18—POST (power-on self test)—Cartridge motor 3 not connected error service check . 2-113
920.19—POST (power-on self test)—Transfer module stepper motor not connected error service Go Back
check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-113
920.21—POST (power-on self test)—24 V power supply failure error service check . . . . . . . 2-115
920.23—POST (power-on self test)—Duplex motor not connected error service check . . . . 2-116
920.27, 920.28, 920.29—POST (power on self test) option tray error service check . . . . . . . . 2-117
920.32—MPF paper present sensor not connected service check . . . . . . . . . . . . . . . . . . . . . . 2-117
925.01, 925.03, 925.05—Fan error service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-117
925.02, 925.04, 925.06—Cartridge cooling fan error service check . . . . . . . . . . . . . . . . . . . . . 2-118
945.xx, 947.xx—Transfer roll error service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-119
950.00–950.29—EPROM mismatch failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-121
956.xx—System board failure service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-122
5 V interlock switch service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-123
24 V interlock switch service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-124
Bubble sensor service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-125
Dead printer service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-127
Networking service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-127
Operator panel service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-130
Print quality service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-131
Tray 1 missing service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-139
Tray linking service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-140
Table of contents v
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vi Service Manual
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Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I-1
Part number index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I-7
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Laser notice
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This product is certified in the U.S. to conform to the requirements of DHHS 21 CFR Subchapter J for Class I (1)
laser products, and elsewhere is certified as a Class I laser product conforming to the requirements of IEC
60825-1.
Class I laser products are not considered to be hazardous. The printer contains internally a Class IIIb (3b)
AlGaAs laser producing visible radiation in the wavelength of 770-800 nanometers enclosed in a non-
serviceable printhead assembly. The laser system and printer are designed so there is never any human access
to laser radiation exceeding Class I levels during normal operation, user maintenance, or prescribed service
condition.
Laser-Hinweis
Dieses Produkt ist in den USA zertifiziert und entspricht den Anforderungen der Vorschriften DHHS 21 CFR
Unterkapitel J für Laserprodukte der Klasse I (1), andernorts ist er als Laserprodukt der Klasse I zertifiziert, das
den Anforderungen von IEC 60825-1 entspricht.
Laserprodukte der Klasse I werden nicht als gefährlich betrachtet. Der Drucker enthält im Inneren einen Laser
der Klasse IIIb (3b) AlGaAs, der sichtbare Strahlung im Wellenlängenbereich von 770 bis 800 Nanometern
abgibt. Dieser befindet sich in einer Druckkopfeinheit, die nicht gewartet werden kann. Das Lasersystem und
der Drucker sind so konstruiert, dass unter normalen Betriebsbedingungen bei der Wartung durch den Benutzer
oder bei den vorgeschriebenen Wartungsbedingungen Menschen keiner Laserstrahlung ausgesetzt sind, die
die Werte für Klasse I überschreitet.
Les produits laser de Classe I ne sont pas considérés comme dangereux. L'imprimante contient un laser de
Classe IIIb (3b) AlGaAs qui produit des radiations visibles opérant sur une longueur d'onde de l'ordre de 770 à
800 nanomètres au sein d'un boîtier non démontable de la tête d'impression. Le système laser et l'imprimante
ont été conçus de manière à ce que personne ne soit jamais exposé à des radiations laser dépassant le niveau
de classe I dans le cadre d'un fonctionnement normal, de l'entretien par l'utilisateur ou de la maintenance.
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Avvertenze sui prodotti laser
Questo prodotto è certificato negli Stati Uniti come prodotto conforme ai requisiti DHHS 21 CFR Sottocapitolo J
per i prodotti laser di Classe I (1), mentre in altri paesi è certificato come prodotto laser di Classe I conforme ai
requisiti IEC 60825-1. Next
I prodotti laser di Classe I non sono considerati pericolosi. La stampante contiene un laser Classe IIIb (3b)
AlGaInP che emette una radiazione visibile a una lunghezza d'onda di 770-800 nanometri all'interno dell'unità
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testina di stampa non sottoponibile a manutenzione. Il sistema laser e la stampante sono stati progettati in modo
da impedire l'esposizione a radiazioni laser superiori al livello previsto dalla Classe I durante le normali
operazioni di stampa, manutenzione o assistenza.
Los productos láser de Clase I no se consideran peligrosos. Este producto contiene un láser interno de Clase
IIIb (3b) AlGaAs que produce una radiación visible en una longitud de onda de 770-800 nanómetros cerrado en
un conjunto de cabezal de impresión que no se puede reparar. El sistema láser y la impresora se han diseñado
para que el ser humano no acceda nunca a las radiaciones láser por encima del nivel de Clase I durante el
funcionamiento normal, mantenimiento del usuario o condición de servicio prescrita.
Os produtos a laser de Classe I não são considerados prejudiciais. A impressora contém, internamente, um
laser de Classe IIIb (3b) AlGaAs que produz radiação visível no comprimento de onda de 770-800 nanômetros
incluso em um conjunto do cabeçote de impressão cuja manutenção não é facilitada. O sistema do laser e a
impressora foram projetados para que jamais haja acesso humano à radiação do laser acima dos níveis da
Classe I durante a operação normal ou a manutenção pelo usuário ou sob as condições de manutenção
prescritas.
Os produtos laser de Classe I não são considerados perigosos. A impressora possui, no seu interior, um laser
de Classe IIIb (3b) AlGaAs que produz radiação num comprimento de onda de 770-800 nanómetros. Este
encontra-se fechado no conjunto da cabeça de impressão, que não é passível de manutenção. O sistema de
laser e a impressora estão concebidos de forma a que nunca haja acesso humano à radiação laser que excede
os níveis correspondentes à Classe I durante o funcionamento normal, manutenção ou em condições de
assistência recomendada.
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Laserinformatie
Dit product is in de Verenigde Staten gecertificeerd als een product dat voldoet aan de vereisten van DHHS 21
CFR paragraaf J voor laserproducten van klasse I (1). Elders is het product gecertificeerd als een laserproduct
van klasse I dat voldoet aan de vereisten van IEC 60825-1. Next
Laserproducten van klasse I worden geacht geen gevaar op te leveren. De printer bevat intern een laser van
klasse IIIb (3b) AlGaAs die zichtbare straling produceert in een golflengtebereik van 770-800 nanometer in een
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niet-bruikbare printkopeenheid. Het lasersysteem en de printer zijn zodanig ontworpen dat gebruikers nooit
blootstaan aan laserstraling die hoger is dan het toegestane niveau voor klasse I-apparaten, tijdens normaal
gebruik, onderhoudswerkzaamheden door de gebruiker of voorgeschreven servicewerkzaamheden.
Lasermeddelelse
Dette produkt er certificeret i USA i henhold til kravene i DHHS 21 CFRi underafsnit J for klasse l (1)-
laserprodukter og er andre steder certificeret som et klasse I laserprodukt i henhold til kravene i IEC 60825-1.
Klasse I-laserprodukter er ikke anset som farlige. Printeren indeholder internt en klasse IIIb (3b) AlGaAs-laser,
der producerer synlig stråling med en bølgelængde på 770-800 nanometer, indkapslet i en ikke-servicerbar
printhovedsamling. Lasersystemet og printeren er udviklet på en sådan måde, at der ikke er en direkte
laserstråling, der overskrider Klasse I-niveauet under normal brug, brugers vedligeholdelse eller de foreskrevne
servicebetingelser.
Laserilmoitus
Tämä tuote on sertifioitu Yhdysvalloissa DHHS 21 CFR Subchapter J -standardin mukaiseksi luokan I (1) -
lasertuotteeksi ja muualla IEC 60825-1 -standardin mukaiseksi luokan I lasertuotteeksi.
Huomautus laserlaitteesta
Tämä tuote on sertifioitu Yhdysvalloissa DHHS 21 CFR Subchapter J -standardin mukaiseksi luokan I (1) -
lasertuotteeksi ja muualla IEC 60825-1 -standardin mukaiseksi luokan I lasertuotteeksi.
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Laser-notis
Denna produkt är certifierad i USA i enlighet med kraven i DHHS 21 CFR underkapitel J för klass I (1)-
laserprodukter, och på andra platser certifierad som en klass I-laserprodukt i enlighet med kraven i IEC 60825-1.
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Klass I-laserprodukter betraktas inte som skadliga. Skrivaren innehåller en klass IIIb (3b) AlGaAs-laser som
producerar synlig strålning inom våglängden 770-800 nm, innesluten i en icke-servicebar skrivhuvudenhet.
Lasersystemet och skrivaren är utformade så att människor aldrig utsätts för laserstrålning som överskrider
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klass I-nivåerna under normala förhållanden vid användning, underhåll eller service.
Laser-melding
Dette produktet er sertifisert i USA for samsvar med kravene i DHHS 21 CFR, underkapittel J for laserprodukter
av klasse I (1) og er andre steder sertifisert som et laserprodukt av klasse I som samsvarer med kravene i IEC
60825-1.
Laserprodukter av klasse I anses ikke som helseskadelige. Skriveren inneholder en intern AlGaAs-laser av
klasse IIIb (3b) som produserer synlig stråling i bølgelender på 770-800 nanometer i en ikke-reparerbar
skrivehodeenhet. Lasersystemet og skriveren er utformet slik at mennesker ikke utsettes for laserstråling utover
nivåene i klasse I under normal drift, vedlikehold eller foreskrevet service.
Los productos láser de Clase I no se consideran peligrosos. La impresora contiene en su interior radiación láser
visible AlGaAs Clase IIIb (3b) en la longitud de onda de 770 - 800 nanómetros dentro de un mecanismo de
cabezal de impresión que no requiere servicio técnico. La impresora y el sistema láser están diseñados de
forma tal que no exista nunca acceso humano a radiación láser que supere los niveles de Clase I durante el
funcionamiento normal, las tareas de mantenimiento por parte del usuario o las condiciones de servicio técnico
estipuladas.
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Lithium warning
CAUTION
This product contains a lithium battery. THERE IS A RISK OF EXPLOSION IF THE BATTERY Next
IS REPLACED BY AN INCORRECT TYPE. Discard used batteries according to the battery
manufacturer’s instructions and local regulations.
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Safety information
• The safety of this product is based on testing and approvals of the original design and specific
components. The manufacturer is not responsible for safety in the event of use of unauthorized
replacement parts.
• The maintenance information for this product has been prepared for use by a professional service person
and is not intended to be used by others.
• There may be an increased risk of electric shock and personal injury during disassembly and servicing of
this product. Professional service personnel should understand this and take necessary precautions.
• CAUTION: When you see this symbol, there is a danger from hazardous voltage in the area of the
product where you are working. Unplug the product before you begin, or use caution if the product
must receive power in order to perform the task.
Consignes de sécurité
• La sécurité de ce produit repose sur des tests et des
agréations portant sur sa conception d'origine et sur des composants particuliers. Le fabricant n'assume
aucune responsabilité concernant la sécurité en cas d'utilisation de pièces de rechange non agréées.
• Les consignes d'entretien et de réparation de ce produit s'adressent uniquement à un personnel de
maintenance qualifié.
• Le démontage et l'entretien de ce produit pouvant présenter certains risques électriques, le personnel
d'entretien qualifié devra prendre toutes les précautions nécessaires.
• ATTENTION : Ce symbole indique la présence d'une tension dangereuse dans la partie du
produit sur laquelle vous travaillez. Débranchez le produit avant de commencer ou faites preuve
de vigilance si l'exécution de la tâche exige que le produit reste sous tension.
Norme di sicurezza
• La sicurezza del prodotto si basa sui test e sull'approvazione del progetto originale e dei componenti
specifici. Il produttore non è responsabile per la sicurezza in caso di sostituzione non autorizzata delle
parti.
• Le informazioni riguardanti la manutenzione di questo prodotto sono indirizzate soltanto al personale di
assistenza autorizzato.
• Durante lo smontaggio e la manutenzione di questo prodotto,
il rischio di subire scosse elettriche e danni alla persona è più elevato. Il personale di assistenza
autorizzato deve, quindi, adottare le precauzioni necessarie.
• ATTENZIONE: Questo simbolo indica la presenza di tensione pericolosa nell'area del prodotto.
Scollegare il prodotto prima di iniziare o usare cautela se il prodotto deve essere alimentato per
eseguire l'intervento.
Lithium warning xv
5026
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Sicherheitshinweise
• Die Sicherheit dieses Produkts basiert auf Tests und Zulassungen des ursprünglichen Modells und
bestimmter Bauteile. Bei Verwendung nicht genehmigter Ersatzteile wird vom Hersteller keine
Verantwortung oder Haftung für die Sicherheit übernommen. Next
• Die Wartungsinformationen für dieses Produkt sind ausschließlich für die Verwendung durch einen
Wartungsfachmann bestimmt.
• Während des Auseinandernehmens und der Wartung des Geräts besteht ein zusätzliches Risiko eines Go Back
elektrischen Schlags und körperlicher Verletzung. Das zuständige Fachpersonal sollte entsprechende
Vorsichtsmaßnahmen treffen.
• ACHTUNG: Dieses Symbol weist auf eine gefährliche elektrische Spannung hin, die in diesem
Bereich des Produkts auftreten kann. Ziehen Sie vor den Arbeiten am Gerät den Netzstecker des
Geräts, bzw. arbeiten Sie mit großer Vorsicht, wenn das Produkt für die Ausführung der Arbeiten
an den Strom angeschlossen sein muß.
Pautas de Seguridad
• La seguridad de este producto se basa en pruebas y aprobaciones del diseño original y componentes
específicos. El fabricante no es responsable de la seguridad en caso de uso de piezas de repuesto no
autorizadas.
• La información sobre el mantenimiento de este producto está dirigida exclusivamente al personal
cualificado de mantenimiento.
• Existe mayor riesgo de descarga eléctrica y de daños personales durante el desmontaje y la reparación de
la máquina. El personal cualificado debe ser consciente de este peligro y tomar las precauciones
necesarias.
• PRECAUCIÓN: este símbolo indica que el voltaje de la parte del equipo con la que está
trabajando es peligroso. Antes de empezar, desenchufe el equipo o tenga cuidado si, para
trabajar con él, debe conectarlo.
Informações de Segurança
• A segurança deste produto baseia-se em testes e aprovações do modelo original e de componentes
específicos. O fabricante não é responsável pela segunrança, no caso de uso de peças de substituição
não autorizadas.
• As informações de segurança relativas a este produto destinam-se a profissionais destes serviços e não
devem ser utilizadas por outras pessoas.
• Risco de choques eléctricos e ferimentos graves durante a desmontagem e manutenção deste produto.
Os profissionais destes serviços devem estar avisados deste facto e tomar os cuidados necessários.
• CUIDADO: Quando vir este símbolo, existe a possível presença de uma potencial tensão
perigosa na zona do produto em que está a trabalhar. Antes de começar, desligue o produto da
tomada eléctrica ou seja cuidadoso caso o produto tenha de estar ligado à corrente eléctrica para
realizar a tarefa necessária.
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Informació de Seguretat
• La seguretat d'aquest producte es basa en l'avaluació i aprovació del disseny original i els components
específics.
El fabricant no es fa responsable de les qüestions de Next
seguretat si s'utilitzen peces de recanvi no autoritzades.
• La informació pel manteniment d’aquest producte està orientada exclusivament a professionals i no està
destinada Go Back
a ningú que no ho sigui.
• El risc de xoc elèctric i de danys personals pot augmentar durant el procés de desmuntatge i de servei
d’aquest producte. El personal professional ha d’estar-ne assabentat i prendre
les mesures convenients.
• PRECAUCIÓ: aquest símbol indica que el voltatge de la part de l'equip amb la qual esteu
treballant és perillós. Abans de començar, desendolleu l'equip o extremeu les precaucions si, per
treballar amb l'equip, l'heu de connectar.
Preface Previous
This manual contains maintenance procedures for service personnel. It is divided into the following chapters:
1. General information contains a general description of the printer and the maintenance approach used to
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repair it. Special tools and test equipment, as well as general environmental and safety instructions, are
discussed.
2. Diagnostic information contains an error indicator table, symptom tables, and service checks used to
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isolate failing field replaceable units (FRUs).
3. Diagnostic aids contains tests and checks used to locate or repeat symptoms of printer problems.
4. Repair information provides instructions for making printer adjustments and removing and installing
FRUs.
5. Connector locations uses illustrations to identify the connector locations and test points on the printer.
6. Preventive maintenance contains the lubrication specifications and recommendations to prevent
problems.
7. Parts catalog contains illustrations and part numbers for individual FRUs.
Appendix A contains service tips and information.
Appendix B contains representative print samples.
Change history
Conventions
Note: A note provides additional information.
Warning: A warning identifies something that might damage the product hardware or software.
CAUTION
Next
CAUTION Go Back
This type of caution indicates there is a danger from hazardous voltage in the area of the
product where you are working. Unplug the product before you begin, or use caution if the
product must receive power in order to perform the task.
CAUTION
CAUTION
Navigation buttons
This manual contains navigation buttons in the right margin of each page, making it easier and quicker to navigate.
Button Description
Previous
Click to move the document view backward by one page.
Next
Click to move the document view forward by one page.
Go Back
Click to return to the last page viewed.
Conventions xix
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xx Service Manual
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Models
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Machine type
Printer name Description
and model
Lexmark C746dtn 5026-330 Network-ready with duplex and 550 sheet tray
Lexmark C748de 5026-530 Network-ready with etask touch screen and duplex
Lexmark C748dte 5026-530 Network-ready with etask touch screen, duplex, and
550 sheet tray
Lexmark C746dtn 5026-331 Network-ready with duplex and 550 sheet tray
Lexmark C748de 5026-531 Network-ready with etask touch screen and duplex
Lexmark C748dte 5026-531 Network-ready with etask touch screen, duplex, and
550 sheet tray
Options
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1
2
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3
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5 7
8
4
Number Description
1 Standard output bin
2 Paper support
3 Printer operator panel
4 Standard 550-sheet stray (Tray 1)
5 Multipurpose feeder
6 Optional 550-sheet specialty media drawer
7 Optional 550-sheet tray
8 Optional 2,000-sheet high.capacity feeder
Media options
The C746x and C748x printers support the 550-sheet drawer, special media drawers, and 2000-sheet high-
capacity input tray. The C746x and C748x printers support up to four input options. The options can include any
combination of 550 sheet drawers and 550 sheet Specialty Media Drawers, with a maximum of one 2000 sheet
drawer (always at the lowest position.) A caster base is required with some configurations. Including the base
machine capacity of 650 sheets, the C746x and C748x supports up to 4300 sheets.
The Lexmark C74x options are compatible with the Lexmark C73x SFP, X73x MFP, and X74x MFP, but not with
any other Lexmark printers. No other options are supported by the C74x.
• 550-Sheet Drawer—This optional input source installs beneath the printer, and it holds approximately 550
sheets of (20 lb.) paper.
• High Capacity Input Tray—This optional input source installs beneath the printer, and it holds
approximately 2000 sheets of (20 lb.) paper.
• Specialty Media Drawer—This optional input source installs beneath the printer, and it holds
approximately 550 sheets of (20 lb.) paper, or 85 standard envelopes.
• Additional memory card—The memory options for the C746x and C748x printers are 200 pin DDR2,
SODIMM, and they are available at 256MB, 512MB, and 1GB sizes.
• Flash memory card—Flash Memory cards are available in 256MB.
• Hard disk—If larger storage is required, an optional hard disk is available. Next
Go Back
Previous
Printer specifications
Dimensions
The following table contains the dimensions and weight for each of the respective printer models. This does not Next
include packaging.
Go Back
Height Width Depth Weight
Clearances Previous
Next
Go Back
4
3
Memory
C746 C748
Optional memory—Optional DIMM (Dual Inline Memory Module) is a card that can be plugged into an
available memory slot on the system board. Flash memory is a card that can also be plugged into an
available slot.
DIMM memory sizes available 256MB, 512MB, 1024MB 256MB, 512MB, 1024MB
Resolution
Data streams
• XPS
• PCL 6 emulation (includes PCL 5e and PCL XL interpreters)
• PostScript 3 emulation
• PDF 1.6
• PPDS
• PictBridge
• HTML (including DBCS)
• Direct Image (TIFF, TIF, JPEG, JPG, GIF, PNG, BMP, PCX, and DCX)
Environment specifications
Environment Specifications
Operating
Previous
Environment Specifications
Web Bulb Temperature—Power Off 26.7° C (80.1° F) Maximum
* In some cases performance specifications, such as paper OCF and EP cartridge usage, are specified to
be measured at an ambient condition. Next
Off 0W 0W
Low-voltage models
• Using a power converter or inverter with the Lexmark C740 Series printers is not recommended.
• The C740 series duplex models (C746dn, C746dtn, C748de, C748dte) are Energy Star Qualified.
• All models ship with Sleep Mode = On.
• The default time out to Sleep mode is 30 minutes.
All acoustic measurements are made in accordance with ISO 7779:1999—Accoustics: Measurement of airborne
noise emitted by information technology and telecommunications and reported in conformance with ISO 9296:
1988-04-15—Accoustics Declared noise emission values of computer and business equipment.
Next
C748
Previous
Media specifications
Paper designed for use with xerographic copiers should provide satisfactory print quality and feed reliability.
Other types of media may be suitable. It is recommended that users test any particular brand for suitability to
their applications. Refer to the printer User's Guide for additional media specifications. Next
Paper
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Follow the media guidelines below for successful printing:
• Rough, highly textured, limp, or pre-curled papers will result in lower print quality and more frequent paper
feed failures.
• Colored papers must be able to withstand 190° C (374° F) fusing temperature.
• Preprinted forms and letterheads must be able to withstand 190° C (374° F) fusing temperature and should
be selected using guidelines found in the printer User’s Guide. The chemical process used in preprinting
may render some papers unsuitable for use.
• Unsuitable papers include:
– Multi-part forms and documents
– Chemically treated papers; coated
– Synthetic and thermal papers
– A5 paper less than 80 g/m2 (21 lb)
– Recycled paper less than 75 g/m2 (20 lb)
– Preprinted papers requiring a high degree of registration.
– Recycled paper less than 80 g/m2 (21 lb) may cause unacceptable results.
Envelopes
Transparencies
Labels
Labels should be selected using guidelines found in the User's Guide or the Card Stock and Label Guide, and
tested for acceptability.
Recycled office paper produced specifically for use in laser (electrophotographic) printers may be used in your
printer. However, no blanket statement can be made that all recycled paper will feed well.
The following table describes the media options that each model supports, and the estimated capacities in stand
and maximum configurations. Capacity may vary and is subject to media specifications and printer operating
environment. The capacities are based on plain paper at 75g/m2.
Next
Standard input sources
Multipurpose feeder
Optional 2000-sheet
Optional Speciality
Next
feeder (HCIT)
Media Sizes
Go Back
Duplex
Media
Paper sizes
A4 210 x 297 mm ? ? ? ? ? ?
A5 148 x 210 mm ? ? ? ? ?
A6 105 x 148 mm ? ?
Universal ? ? ? ? ?
Previous
Multipurpose feeder
Optional 2000-sheet
Optional Speciality
feeder (HCIT)
Media Sizes (continued)
Next
Duplex
Media
Go Back
Envelopes
a
These sizes are accessible using Other Envelope setting.
Paper guidelines
Paper characteristics
The following paper characteristics affect print quality and reliability. Consider these characteristics when
evaluating new paper stock.
Weight—The printer can automatically feed paper weights from 60 to 162l7 g/m 2 (16 to 43 lb bond) grain long.
Paper lighter than 60 g/m2 (16 lb) might not be stiff enough to feed properly, causing jams. For best
performance, use 75 g/m2 (20 lb bond) grain long paper. For paper smaller than 182 x 257 mm (7.2 x 10.1 in.),
we recommend 90 g/m 2 (24 lb) or heavier paper.
Note: Duplex is supported only for 60 g/m 2–120.5 g/m 2 (16 lb–32 lb) grain long bond.
Curl—Curl is the tendency for paper to curl at its edges. Excessive curl can cause paper feeding problems. Curl
can occur after the paper passes through the printer, where it is exposed to high temperatures. Storing paper
unwrapped in hot, humid, cold, or dry conditions, even in the trays, can contribute to paper curling prior to
printing and can cause feeding problems.
Smoothness—Paper smoothness directly affects print quality. If paper is too rough, toner cannot fuse to it
properly. If paper is too smooth, it can cause paper feeding or print quality issues. Always use paper between
100 and 300 Sheffield points; however, smoothness between 150 and 200 Sheffield points produces the best
print quality.
Moisture content—The amount of moisture in paper affects both print quality and the ability of the printer to
feed the paper correctly. Leave paper in its original wrapper until it is time to use it. This limits the exposure of
paper to moisture changes that can degrade its performance.
Condition paper before printing by storing it in its original wrapper in the same environment as the printer for 24
to 48 hours before printing. Extend the time several days if the storage or transportation environment is very
different from the printer environment. Thick paper may also require a longer conditioning period.
Grain direction—Grain refers to the alignment of the paper fibers in a sheet of paper. Grain is either grain long,
running the length of the paper, or grain short, running the width of the paper. For 60 to 135 g/m2 (16 to 36 lb
bond) paper, grain long paper is recommended. For papers heavier than 135 g/m2, grain short is recommended.
Fiber content—Most high-quality xerographic paper is made from 100% chemically treated pulped wood. This
content provides the paper with a high degree of stability resulting in fewer paper feeding problems and better
print quality. Paper containing fibers such as cotton can negatively affect paper handling.
Unacceptable paper
The following paper types are not recommended for use with the printer:
• Chemically treated papers used to make copies without carbon paper, also known as carbonless papers,
carbonless copy paper (CCP), or no carbon required (NCR) paper
• Preprinted papers with chemicals that may contaminate the printer
• Preprinted papers that can be affected by the temperature in the printer fuser
• Preprinted papers that require a registration (the precise print location on the page) greater than ±2.3 mm Previous
(±0.9 in.), such as optical character recognition (OCR) forms
Note: In some cases, registration can be adjusted with a software application to successfully print on
these forms.
Selecting paper
Using appropriate paper prevents jams and helps ensure trouble-free printing.
Preprinted papers such as letterhead must be able to withstand temperatures up to 190°C (374°F) without
melting or releasing hazardous emissions.
Use these paper storage guidelines to help avoid jams and uneven print quality:
• For best results, store paper where the temperature is 21°C (70°F) and the relative humidity is 40%. Most
label manufacturers recommend printing in a temperature range of 18 to 24°C (65 to 75°F) with relative
humidity between 40 and 60%. Next
• Store paper in cartons when possible, on a pallet or shelf, rather than on the floor.
• Store individual packages on a flat surface.
Go Back
• Do not store anything on top of individual paper packages.
Previous
Acronyms
BLDC Brushless DC Motor
BUR Back Up Roll
C Cyan Next
COD Color On Demand
DIMM Dual Inline Memory Module
DRAM Dynamic Random Access Memory Go Back
EP Electrophotographic Process
ESD Electrostatic Discharge
FRU Field Replaceable Unit
GB Gigabyte
HCIT High-Capacity Input Tray
HVPS High Voltage Power Supply
K Black
LASER Light Amplification by Stimulated Emission of Radiation
LCD Liquid Crystal Display
LED Light-Emitting Diode
LVPS Low-Voltage Power Supply
M Magenta
MPF Multipurpose Feeder
NVRAM Nonvolatile Random Access Memory
PC Photoconductor
pel Picture element (pixel)
POR Power-On Reset
POST Power-On Self Test
RIP Raster Imaging Processor
SDRAM Synchronous Dual Random Access Memory
V ac Volts alternating current
V dc Volts direct current
Y Yellow
Previous
Next
Go Back
Start
Next
CAUTION
Remove the power cord from the electrical outlet before you connect or disconnect any cable Go Back
or electronic card or assembly for personal safety and to prevent damage to the printer.
CAUTION—POTENTIAL INJURY:
The printer weight is greater than 54 lbs (24.5kg), and requires two or more trained personnel
to lift safety.
Use the service error code, user status message, user error message, symptom table, service checks, and
diagnostic aids in this chapter to determine the corrective action necessary to repair a malfunctioning printer.
They will lead you to solutions or service checks, including the use of various tests.
Symptom tables
If your printer completes the “Power-on self test (POST) sequence” on page 2-9 without an error, and you
have a symptom, go to “Symptom tables” on page 2-9. Locate your symptom, and take the appropriate action.
If a service error code appears while you are working on the printer, go to “1xx service error codes” on
page 2-21 or “9xx service error messages” on page 2-38, and take the indicated action for that error.
Service error codes are indicated by a three-digit error code followed by a period and additional numbers in the
format XXX.YY. In most cases, five digits are shown.
User attendance messages that indicate a paper jam have been included with the service error codes since
repeated instances may indicate an underlying service issue. Go to “2xx paper jam messages” on page 2-23.
• User status messages provide the user with information on the current status of the printer.
• User attendance messages are indicated by a two-digit code that provides the user with information that
explains a problem with a print cartridge, option, port, and so on. If a user error message displays, see “3x
through 8x attendance messages” on page 2-13 or “2xx paper jam messages” on page 2-23.
Additional information
Previous
Operator panel and menus
C746x operator panel
1 2 3 4 5 Next
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1 2 ABC 3 DEF
10 9 8 7 6
Use the To
1 Display • View printer status.
• Allow printer setup and operation.
2 Select button Submit changes made in the printer settings.
3 Navigation buttons Scroll up and down or left and right.
4 Keypad Enter numbers and letters.
5 Sleep button Enable Sleep mode.
The following are the statuses based on the indicator light and the Sleep
button:.
• Entering or waking from Sleep mode
- The indicator light is illuminated solid green.
- The Sleep button is un-illuminated.
• Operating in Sleep mode
- The indicator light is illuminated solid green.
- The Sleep button is illuminated solid amber.
• Entering or waking from Hibernate mode
- The indicator light is illuminated solid green.
- The Sleep button is illuminated blinking amber.
• Operating in Hibernate mode.
- The indicator light is un-illuminated.
- The Sleep button is blinking amber for 0.1 second, and then goes
completely un-illuminated for 1.9 seconds in pulsing pattern.
The following actions wake the printer from Sleep mode:
• Pressing any button
• Opening Tray 1 or loading paper in the multipurpose feeder
• Opening a door or cover
• Sending a print job from the computer
• Performing a power.on reset with the
6 Stop/Cancel button Stops all printer activities.
Note: A list of options are displayed once Stopped appears on the display.
7 Back Return to the previous screen.
8 Home button Go to the home screen.
Indicator light
Indicates
status
Next
Off Printer power is off.
Blinking green Printer is warming up, processing data, or
printing a job.
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Solid green Printer is on, but idle.
Blinking red Operator intervention is required.
10 USB port Connect a USB Bluetooth adapter or a flash drive to the printer.
Note: Only the front USB port supports flash drives.
1 2 ABC 3 DEF
7 6 5
Use the To
1 Display • View printer status.
• Allow printer setup and operation.
2 Home button Go to the home screen.
3 Keypad Enter numbers and letters.
Indicator light
Indicates
status
Off Printer power is off.
Blinking green Printer is warming up, processing data, or
printing a job.
Solid green Printer is on, but idle.
Blinking red Operator intervention is required.
7 USB port Connect a USB Bluetooth adapter or a flash drive to the printer.
Note: Only the front USB port supports flash drives.
Note: Your home screen, icons, and buttons may vary depending on your home screen customization settings,
administrative setup, and active embedded solutions.
1 2 3 4
Next
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10 9 8 7 6 5
Touch To
1 Up arrow Scroll up.
Touch To Previous
Next
When the printer is turned on, the display shows a basic screen, referred to as the home screen. Use the home
screen buttons and icons to initiate an action.
Note: Your home screen, icons, and the buttons may vary depending on your home screen customization
settings, administrative setup, and active embedded solutions.
1 2 3 4
123.123.123.123
8 7 6 5
Touch To
1 Change Language Change the primary language of the printer.
2 Bookmarks Create, organize, and save a set of bookmarks (URLs) into a tree view of
folders and file links.
Note: The tree view does not include bookmarks created within Forms and
Favorites, and the ones in the tree are not usable in Forms and Favorites.
3 Held Jobs Display all current held jobs.
4 USB or USB View, select, or print photos and documents from a flash drive.
Thumbdrive
Note: This icon appears only when you return to the home screen while a
memory card or flash drive is connected to the printer.
5 Menus Access printer menus.
Note: These menus are available only when the printer is in the Ready
state.
Touch To Previous
6 Status message bar • Show the current printer status such as Ready or Busy.
• Show printer conditions such as Fuser missing or Cartridge Low.
• Show intervention messages and the instructions on how to clear them.
7 Status/Supplies • Display a warning or error message whenever the printer requires Next
intervention to continue processing.
• Access the messages screen for more information on the message, and
how to clear it.
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8 Tips Open a context.sensitive Help information on the touch screen.
Touch To
Search Held Search current
Jobs held jobs.
Features
Feature Description
Attendance message alert If an attendance message affects a function, then this icon appears and the red
indicator light blinks.
Printer IP address The IP address of your network printer is located at the top left corner of the
home screen and appears as four sets of numbers separated by periods. You
Sample: can use the IP address when accessing the Embedded Web Server so you can
123.123.123.123.123 view and remotely configure printer settings even when you are not physically
near the printer.
Note: Some menu items may not be available based on the printer model or the options installed.
1
This menu appears only in touch.screen printer models
2
Spending on the printer setup, this menu appears as a Standard Network, Wireless Network, or Network [x]
Previous
Power-on self test (POST) sequence
When you turn the printer on, it performs a Power-On Self Test. Check for correct POST functioning of the base
printer by observing the following:
1. The operator panel turns on and displays the Lexmark logo. Next
Symptom tables
Printer symptom table
Symptom Action
Dead printer Go to “Dead printer service check” on page 2-127.
Operator panel—one or more buttons do Go to “One or more operator panel buttons fail” on
not work. page 2-130.
Operator panel—display is blank. Printer Go to “Operator panel display blank, five beeps, and LED is
sounds five beeps. off” on page 2-130.
Operator panel—display is blank. Go to “Operator panel display blank, five beeps, LED on” on
page 2-130.
Operator panel—stripes display, distorted Go to “Stripes display, distorted display, and other display
display, and other display issues issues” on page 2-131
Tray 1 missing Go to “Tray 1 missing service check” on page 2-139.
Tray linking will not work. Go to “Tray linking service check” on page 2-140.
Front cover locks, and will not open Go to “Front cover locked in place” on page 3-36.
Symptom Action
Background Go to “Print quality—background” on page 2-132.
Blank page Go to “Print quality—blank page” on page 2-133. Next
Previous
User status and attendance messages
Close Front Door Close the front door securely. If you continuously get this error, then either the 24 V interlock Next
switch or the 5 V interlock switch is bad. See “24 V interlock switch service check” on
page 2-124 and “5 V interlock switch service check” on page 2-123.
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Disk Corrupted, The printer has attempted a disk recovery and cannot repair the disk. The disk must be
Reformat? formatted to use.
Warning: All files stored on the disk will be lost.
Held Jobs May Not Be The printer has attempted to restore Held jobs, but not all were restored.
Restored
Load <source> Load paper in the indicated source and of the indicated type. Additional messages may
<custom type name> include:
• Paper loaded—Select Continue.
• Show Me—the printer will present instructions.
• Cancel Job—the printer job can be canceled.
• Wait for supplies—If job parking is enabled, and the job meets all the requirements for
allowing the job to be parted, the printer adds this message.
Load <source> Load paper in the indicated source, and select Continue.
<Custom String>
Additional messages may include:
• Show Me—the printer will present instructions.
• Cancel Job—the printer job can be cancelled.
• Wait for supplies—If job parking is enabled, and the job meets all the requirements for
allowing the job to be parted, the printer adds this message.
Load <source> <size> Load paper in the indicated source and of the indicated size, and select Continue.
Additional messages may include:
• Show Me—the printer will present instructions.
• Cancel Job—the printer job can be cancelled.
• Wait for supplies—If job parking is enabled, and the job meets all the requirements for
allowing the job to be parted, the printer adds this message.
Load Manual <custom If paper loaded is in the manual feeder, the job continues. If paper is not in the feeder,
type name> pressing Select indicates to the printer it should search for a source with the proper custom
type.
Additional messages may include:
• Show Me—the printer will present instructions.
• Cancel Job—the printer job can be cancelled.
Load Manual If paper loaded is in the manual feeder, the job continues. If paper is not in the feeder,
<custom string> pressing Select indicates to the printer it should search for a source with the proper custom
string.
Additional messages may include:
• Show Me—the printer will present instructions.
• Cancel Job—the printer job can be cancelled.
Load Manual <size> If paper loaded is in the manual feeder, the job continues. If paper is not in the feeder,
pressing Select indicates to the printer it should search for a source with the proper size.
Additional messages may include:
• Show Me—the printer will present instructions.
• Cancel Job—the printer job can be cancelled.
Previous
Error code Action
Load Manual <type> If paper loaded is in the manual feeder, the job continues. If paper is not in the feeder,
<size> pressing Select indicates to the printer it should search for a source with the proper type and
size.
Additional messages may include: Next
• Show Me—the printer will present instructions.
• Cancel Job—the printer job can be cancelled.
Go Back
Paper Changes Needed
PC Unit Exposure This warning occurs when the front door is left open too long. Close the front door to prevent
Warning damage to the PC unit. Select Tell me more for further information.
Remove All Color If Color Lockout mode is enabled, this message appears (unless the printer is in Diagnostics
Supplies Menu or Configuration Menu).
Remove Paper The standard output bin is full. Remove the media to continue.
Standard Bin
Remove Packaging If packaging material is detected by the printer, Check all areas, Check <area name>, or Check
Material <number of> areas may appear. Press Select to continue.
Restore Held Jobs If the printer detects Print and Hold (or parked) jobs stored on the hard disk during Power-On
Go/Stop? Self Test (POST). Choices are:
• Restore—Print jobs are restored, and Restoring Held Jobs x/y, where x is the number of
the job restored and y is the total number of jobs to restore. You can quit restoring, and
the remainder of the jobs will remain on the disk, but cannot be accessed until they are
restored at the next POR.
• Do not restore—Held jobs will remain on the disk, but cannot be accessed until they are
restored at the next POR. Held jobs may not be restored appears.
• Tell me more—additional information is available
Securely Clearing Disk Disk wiping process is recovering disk space. The message clears when all memory blocks
Space are cleared.
Unsupported Mode Unplug camera and change it to a mode where the camera can access PictBridge. Plug the
camera back in to continue.
Previous
Error code Action
• Inspect the toner cartridge contacts for damage/contamination. Replace the toner
cartridge if defective.
• Replace the indicated cartridge.
• If the problem still exists, see “31.xx—Cartridge errors service check” on page 2-45.
34 Short Paper • Select Continue to clear the message and continue printing.
Note: The printer does not automatically reprint the page that prompted the message.
• Check the tray length and width guides to ensure the media is properly fitted.
• Make sure the print job is requesting the correct size of media.
• Adjust the Paper Size setting for the media size being used.
• If the MP Feeder Size is set to Universal, make sure the media is large enough for the
formatted data.
• Cancel the current job. Replace the paper pick mechanism. See “Paper pick
mechanism assembly removal” on page 4-145.
• If the problem still exists, replace the system board. See “System board removal” on
page 4-163.
35 Insufficient memory • Select Continue to disable Resource Save and continue printing.
to support Resource • To enable Resource Save after receiving this message:
Save feature
- Make sure the link buffers are set to Auto, then exit the menus to activate the link
buffer changes.
- When Ready is displayed, enable Resource Save.
• Install additional memory.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
Previous
Error code Action
37 Insufficient memory • Select Continue to print the portion of the job already stored and begin collating the rest
to collate job of the job.
• Cancel the current job.
• If this does not fix the problem, replace the system board. See “System board removal” Next
on page 4-163.
37 Insufficient memory • Select Continue to stop the defragment operation and continue printing.
for Flash Memory Go Back
• Delete fonts, macros, and other data in printer memory.
Defragment operation
• Install additional printer memory.
• If this does not fix the problem, replace the system. See “System board removal” on
page 4-163.
37 Insufficient memory, • The printer deleted some held jobs in order to process current jobs.
Some Held Jobs Were • Select Continue to clear the message.
Not Restored • If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
37 Insufficient memory, • The printer was unable to restore some or all of the confidential or held jobs on the hard
Some Held Jobs Will disk.
Not Be Restored • Select Continue to clear the message.
• If this message occurs again, replace the hard drive.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
37 Insufficient Defrag There is insufficient memory to perform the Flash Memory Defragment operation. The user
Memory can:
• Delete font, macros, and other data in memory.
• Install additional printer memory.
50 PPDS Font Error • Select Continue to clear the message and continue printing. The job may not print
correctly.
• Cancel the current job.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
51 Defective Flash • Select Continue to clear the message and continue printing.
• Install different flash memory before downloading any resources to flash.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
Previous
Error code Action
52 Flash Full • Select Continue to clear the message and continue printing.
Note: Downloaded fonts and macros not previously stored in flash memory are deleted.
• Delete fonts, macros, and other data stored in flash memory.
Next
• Install a larger capacity flash memory card.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
Go Back
53 Unformatted Flash • Select Continue to clear the message and continue printing.
• Format the flash memory before storing any resources on it. If the error message
remains, replace the flash memory.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
54 Serial option <x> • Make sure the serial link is set up correctly and the appropriate cable is in use.
error • Make sure the serial interface parameters (protocol, baud, parity, and data bits) are set
correctly on the printer and host computer.
• Select Continue to clear the message and continue printing.
The job may not print correctly.
• POR the printer. If this does not fix the problem, replace the PCI card.
54 Std Network 1. Touch Continue to clear the message and continue printing. The job may not print
Software Error correctly.
2. Check the network cable for damage and proper connection. Reconnect or replace the
network cable.
3. If the problem remains, program the latest firmware for the network interface.
4. If the problem remains and an optional network card is installed, then check the
connection. Reconnect or replace the optional network card.
5. If the problem remains, replace the system board. See “System board removal” on
page 4-163.
6. If the problem remains, contact the next level of support.
56 Standard Parallel • Select Continue to clear the message. The printer discards any data received through
Port Disabled the parallel port.
• Make sure the Parallel Buffer menu item is not set to Disabled.
• If this does not fix the problem, replace the PCI card.
56 Parallel Port <x> • Select Continue to clear the message. The printer discards any data received through
Disabled the parallel port.
• Make sure the Parallel Buffer menu item is not set to Disabled.
• If this does not fix the problem, replace the PCI card.
56 Serial Port <x> • Select Continue to clear the message. The printer discards any data received through
Disabled the serial port.
• Make sure the Serial Buffer menu item is not set to Disabled.
• If this does not fix the problem, replace the PCI card.
Previous
Error code Action
58 Too Many Flash Too many flash options are installed. To continue:
Options
1. Turn off and unplug the printer.
2. Remove the excess flash memory.
3. Plug in the printer, and turn it on.
If this does not fix the problem, replace the system board. See “System board removal” on
page 4-163.
61 Defective Disk • Select Continue to clear the message and continue printing.
• Install a different hard disk before performing any operations that require a hard disk.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
62 Disk full • Select Continue to clear the message and continue processing.
• Any information not previously stored on the hard disk is deleted.
• Delete fonts, macros, and other data stored on the hard disk.
• Install a larger hard disk.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
63 Unformatted disk • Select Continue to clear the message and continue printing.
• Format the disk.
• If the error message remains, replace the hard disk.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
64 Unsupported disk • Select Continue to clear the message and continue printing.
format • Format the disk.
• If the error message remains, replace the hard disk.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
Previous
Error code Action
80 Fuser Near Life • Select Continue to clear the message and continue printing.
Warning • Show Me, View Supplies, and Tell Me More displays additional information.
• Order a replacement fuser. When print quality is reduced, install the new fuser using the
instruction sheet that comes with the replacement fuser. Next
Note: Be sure to reset the fuser count. See “Reset Fuser Cnt” on page 3-28.
• If this does not fix the problem, replace the system board.See “System board removal”
on page 4-163.
Go Back
80 Fuser Life Warning • Select Continue to clear the message and continue printing.
• Show Me, View Supplies, and Tell Me More displays additional information.
• Order a replacement fuser. When print quality is reduced, install the new fuser using the
instruction sheet that comes with the replacement fuser.
Note: Be sure to reset the fuser count. See “Reset Fuser Cnt” on page 3-28.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
80 Replace Fuser • Show Me, View Supplies, and Tell Me More displays additional information.
• Replace the fuser. See “Fuser removal” on page 4-118.
Note: Be sure to reset the fuser count. See “Reset Fuser Cnt” on page 3-28.
• If this does not fix the problem, replace the system board. See “System board removal”
on page 4-163.
80 Fuser Missing • Reinstall the fuser. See “Fuser removal” on page 4-118.
• Reseat connectors behind fuser. They may get dislodged and not make good contact
when the fuser is installed.
• Check the cable connectors for damage at the system board and at the LVPS.
80.41 Fuser missing • Install the fuser. Replace the fuser if the problem persists.
• If the problem continues, turn the printer off and remove the rear frame cover. See “Rear
frame cover removal” on page 4-47. Check the cable in connector JFUSER1 for proper
connection to the system board, the cable for pinch points, and the cable or the connector
for any other damage. If the connector is damaged on system board, replace the system
board. See “System board removal” on page 4-163. If the fuser cable is damaged,
replace the cable.
• Check for the following continuity between the DC autoconnect and FUSER1.
AC auto- DC auto-
connect connect
Pin 1 Pin 3
Pin 5 Pin 4
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
• If continuity is not present, replace the fuser cable. If the problem persists after replacing
cable, replace the system board. See “System board removal” on page 4-163.
82 Waste Toner • Select Continue to clear the message and continue printing.
Nearly Full • If printing continues, order a replacement waste toner box immediately.
• If the problem persists, open the front access door and check the aligner shaft for binding.
Clear the binding if possible. If not possible, contact your next level of service.
Previous
Error code Action
82 Replace Waste • Replace the waste toner box using the instruction sheet that comes with the replacement
Toner waste toner box.
• Ensure that there is no interference between the waste toner box and the printer.
• If the problem persists, open the front access door and check the aligner shaft for binding. Next
Clear the binding if possible.
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
• If the problem persists, contact your next level of service. Go Back
82.41 If you continuously get this error, then the problem is the aligner motor error. Go to “147.xx,
906.05-906.08, 920.01—POST (power-on self test) aligner error service check” on
page 2-57.
83.xx Transfer Module • Select Continue to clear the message and continue printing.
Life Warning • Order a replacement transfer module. When print quality is reduced, install the new
transfer module using the instruction sheet that comes with the replacement transfer
module.
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
83.xx Replace Transfer • Replace the transfer module using the instruction sheet that comes with the replacement
Module transfer module. See “Transfer module removal” on page 4-179.
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
83.41 Transfer Module If the you continuously get this error, go to “920.03, 920.25—Transfer Module Missing or
Missing not connected service check” on page 2-99.
84.11 <color> PC Unit • Select Ignore to clear the message and continue printing.
Life Warning • Order the specified photoconductor unit. When print quality is reduced, install the new
specified photoconductor unit using the instruction sheet that comes with the replacement
specified photoconductor unit.
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
84 Replace <color> PC • Replace the specified photoconductor unit using the instruction sheet that comes with the
Unit replacement specified photoconductor unit. Navigate to Menu > Supplies menu >
Replace supplies.
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
Note: Make sure to reset the photoconductor unit counter(s).
Previous
Error code Action
84 <color> PC Unit • Scroll down the operator panel to see if the printer is showing that all four of the PC units
Missing are missing. If so, check the HVPS cable between the system board and the HVPS.
Ensure that the cable is not plugged in backwards on the HVPS. Disconnect and
reconnect the cable to make sure there is good contact.
Next
• Insert or reinstall the specified photoconductor unit and see if problem clears. See
“Photoconductor unit removal” on page 4-150.
• Swap the photoconductor unit between two locations and see if the problem moves with
photoconductor unit. If problem follows the photoconductor unit, replace the Go Back
photoconductor unit. See “Photoconductor unit removal” on page 4-150.
• Remove the top access cover assembly (see “Top access cover assembly removal”
on page 4-54), and confirm that the camshaft follower (A) on the left side is not out of the
groove (B). If the camshaft follower is out of the groove, raise the arm, use a screwdriver
to ease the camshaft follower back into the groove. You need to press down to snap it
into position.
B A
• Check the high voltage contacts path, especially the “finger” on the specified
photoconductor unit (printer is shown with components removed for clarity).
High voltage
power supply
High voltage
contact path
Finger
• If the contacts are good, replace the HVPS. See “High-voltage power supply (HVPS)
removal” on page 4-123.
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
Note: Make sure to reset the photoconductor unit counter(s).
Previous
Error code Action
84 <color> PC Unit Near • Select Ignore to clear the message and continue printing.
Life Warning • Order the specified photoconductor unit. When print quality is reduced, install the new
specified photoconductor unit using the instruction sheet that comes with the replacement
specified photoconductor unit.
Next
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
Note: Make sure to reset the photoconductor unit counter(s).
Go Back
88.xx <color> Cartridge • Show Me, View Supplies, and Tell Me More displays additional information.
Low • Replace the specified toner cartridge.
• Select Continue to clear the message and continue printing.
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
88.xx <color> Cartridge • Show Me, View Supplies, and Tell Me More displays additional information.
Nearly Low • Replace the specified toner cartridge.
• Select Continue to clear the message and continue printing.
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
88.xx Replace <color> • Show Me, View Supplies, and Tell Me More displays additional information.
Cartridge • Replace the specified toner cartridge.
• Select Continue to clear the message and continue printing.
• If the problem persists, replace the system board. See “System board removal” on
page 4-163.
Previous
Error codes and messages
Next
1xx service error codes
120.00–120.21 An error has occurred in the fuser. • Remove and reseat the fuser. See “Fuser
Fuser Error removal” on page 4-118.
• POR the printer.
• If the error message persists, go to
“120.xx—Fuser error service check” on
page 2-47.
Previous
Error code Description Action
156.01, 156.03 COD (Color On Demand) motor failed. • POR the printer.
Motor Error • If the error message persists, go to
“156.xx—COD (Color On Demand) motor
service check” on page 2-60.
Previous
Error code Description Action
200.02 Input sensor is made when printer • Clear away anything in the paper path that might
tries to print from an idle state. cause the paper to jam.
Possible causes: • If clearing a paper jam does not fix the problem,
go to “920.06—Input sensor service check”
• Paper jam leaving page over on page 2-101.
sensor
• Defective input sensor
• Faulty system board
200.04 Input sensor made late in the input • Clear away anything in the paper path that might
sensor. cause the paper to jam.
Possible causes: • If clearing a paper jam does not fix the problem,
go to “920.06—Input sensor service check”
• Paper jam leaving page over on page 2-101.
sensor
• Defective input sensor
• Faulty system board
200.11 Input sensor does not break. 1. Clear away anything in the paper path that might
cause the paper to jam.
Possible causes:
2. Ensure proper media is set for the type of paper
• Incorrect media setting used.
• Incorrect paper loading 3. Fan media, and stack flat in the tray.
• Incorrect media restraint setting 4. Properly set media restraints in the paper tray.
• Transport belt module failure 5. Check the pick arm rolls (tires) and replace if
• Lower guide failure worn.
• Paper pick mechanism failure If the problem persists, go to “200.11,
• Input sensor failure 250.03—Paper Jam error service check” on
page 2-65.
200.17 Input sensor is made when printer • Clear away anything in the paper path that might
powers up or covers are closed. cause the paper to jam.
Possible causes: • If clearing a paper jam does not fix the problem,
go to “920.06—Input sensor service check”
• Paper jam leaving page over on page 2-101.
sensor
• Defective input sensor
• Faulty system board
200.21 Aligner motor stalled. • Check that the waste toner is latched correctly in
the printer.
Possible causes:
• Check for anything in the paper path that might
• Waste toner not seated. cause the paper to jam.
• Faulty cable/connector • If clearing a paper jam does not fix the problem,
• 24 V interlock switch not working go to “147.xx, 906.05-906.08, 920.01—POST
correctly (power-on self test) aligner error service
• Faulty align motor check” on page 2-57.
• Faulty system board
Previous
Error code Description Action
200.22 Pick (tray 1) motor stalled. • Check for anything in the paper path that might
cause the paper to jam.
Possible causes:
• If clearing a paper jam does not fix the problem,
• Faulty cable/connector go to “140.xx, 920.02—Autocomp (tray 1)
Next
• Faulty pick motor motor error service check” on page 2-49.
• Faulty system board
200.25 Input sensor is made when tray 1 is • Fan media, and stack flat in the tray or Go Back
installed. multipurpose feeder.
Possible causes: • Properly set media restraints in the paper tray.
• If clearing a paper jam does not fix the problem,
• Improper placement of paper in go to “920.06—Input sensor service check”
tray 1 on page 2-101.
• Damaged input sensor flag or
input sensor
• Faulty system board
200.30 Paper hit input sensor too soon. • Fan the media, and then stack flat in the tray.
Possible causes: • Check for anything in the paper path that might
cause the paper to jam.
• Incorrect paper loading • The input sensor may not be functioning
• Damaged input sensor flag or properly. Go to “920.06—Input sensor service
input sensor check” on page 2-101.
• Faulty system board
201.02 Bubble sensor active when printing 1. Clear away anything in the paper path that might
started. cause the paper to jam.
Possible causes: 2. Ensure proper media is set for the type of paper
used.
• Paper jam leaving page over 3. Fan media, and stack flat in the tray.
sensor
4. Properly set media restraints in the paper tray.
• Damaged bubble sensor
If the problem persists, go to ““Bubble sensor
• Damaged fuser autoconnect service check” on page 2-125.
• Faulty fuser DC cable connection
• Faulty fuser
• Faulty system board
201.06 Paper is jammed between the input • Check for anything in the paper path that might
sensor and the exit sensor. cause the paper to jam.
Possible causes: • Go to “201.06, 201.08, 201.31—Paper Jam
error service check” on page 2-66.
• Damaged paper exit sensor or
paper exit sensor flag
• Transport belt module failure
• Aligner failure
• Damaged fuser autoconnect
• Faulty fuser DC cable connection
• Faulty fuser
• Faulty system board
201.07 Exit sensor is made early. • Check for anything in the paper path that might
cause the paper to jam.
Possible causes:
• The fuser exit sensor may not be functioning
• Damaged paper exit sensor or properly. Go to “920.08—Exit sensor service
paper exit sensor flag check” on page 2-103.
• Damaged fuser autoconnect • Check the input sensor flag.
• Faulty fuser DC cable connection
• Faulty fuser
• Faulty system board
• Faulty input sensor flag
Previous
Error code Description Action
201.08 Exit sensor is never made. • Check for anything in the paper path that might
cause the paper to jam.
Possible causes:
• The fuser exit sensor may not be functioning
• Improper loading properly. Go to “920.08—Exit sensor service
Next
• Paper wrapped in fuser check” on page 2-103.
• Damaged paper exit sensor or • Check the transfer belt module.
paper exit sensor flag
• Damaged fuser autoconnect Go Back
• Faulty fuser DC cable connection
• Faulty fuser
• Faulty system board
• Faulty transfer belt module
201.10 Input sensor flag broke early. • Check for anything in the paper path that might
cause the paper to jam.
Possible causes:
• Ensure the proper media is set for the type of
• Incorrect media set paper used.
• Defective input sensor • Go to “920.06—Input sensor service check”
• Faulty system board on page 2-101.
201.17 Power up or cover closed with bubble 1. Ensure the proper media is set for the type of
sensor active. paper used.
Possible causes: 2. Fan the media, and stack flat in the tray or
multipurpose feeder.
• Paper jam leaving page over 3. Properly set media restraints in the paper tray.
sensor
4. Clear away anything in the paper path that might
• Damaged bubble sensor cause the paper to jam.
• Damaged fuser autoconnect If the problem persists, go to “Bubble sensor
• Faulty fuser DC cable connection service check” on page 2-125.
• Faulty fuser
• Faulty system board
201.21 Cartridge motor 1 (top) or cartridge • Check for anything in the paper path that might
motor 2 (middle) has stalled. cause the paper to jam.
Possible causes: • If clearing a paper jam does not fix the problem,
go to “143.xx—Motor (EP drive assembly top
• Faulty cable/connector cartridge 1 motor) error service check” on
• Faulty cartridge motor page 2-51, and then go to “144.xx—Motor (EP
• Faulty system board drive assembly middle cartridge) error
service check” on page 2-52, if necessary.
201.24 A 201.08 jam occurred and was not This error is generated as a protection for possible
cleared. paper wrap in the fuser.
Possible cause—Failure to open and • Open the top access door, and check for a
close the top access door. paper jam. Close the top access door.
• Go to “920.08—Exit sensor service check”
on page 2-103.
201.31 Paper is jammed between the input • Check for anything in the paper path that might
sensor and the exit sensor during cause the paper to jam.
warm-up. • Go to “201.06, 201.08, 201.31—Paper Jam
Possible causes: error service check” on page 2-66.
• Damaged paper exit sensor or
paper exit sensor flag
• Transport belt module failure
• Lower guide failure
• Damaged fuser autoconnect
• Faulty fuser DC cable connection
• Faulty fuser
• Faulty system board
Previous
Error code Description Action
201.32 Paper is jammed between the input • Check for anything in the paper path that might
sensor and the exit sensor during cause the paper to jam.
input options warm-up. • Open input tray and clear paper jams.
Possible causes: Next
• Damaged paper exit sensor or
paper exit sensor flag
• Transport belt module failure Go Back
• Lower guide failure
• Damaged fuser autoconnect
• Faulty fuser DC cable connection
• Faulty fuser
• Input option damage
• Faulty system board
202.02 Exit sensor is made when printer tries • Check for anything in the paper path that might
to print from an idle state. cause the paper to jam.
Possible causes: • The fuser exit sensor may not be functioning
properly. Go to “920.08—Exit sensor service
• Damaged paper exit sensor or check” on page 2-103.
paper exit sensor flag
• Damaged fuser autoconnect
• Faulty fuser DC cable connection
• Faulty fuser
• Faulty system board
202.12 Exit sensor broke early. The fuser exit sensor may not be functioning
properly. Go to “920.08—Exit sensor service
Possible causes: check” on page 2-103.
• Damaged paper exit sensor or
paper exit sensor flag
• Faulty fuser
• Faulty system board
202.13 Exit sensor never broke. • Check exit sensor flag on fuser for proper
operation. Ensure that paper is not hanging on
Possible causes: the flag.
• Damaged paper exit sensor or • The fuser exit sensor may not be functioning
paper exit sensor flag properly. Go to “920.08—Exit sensor service
• Faulty fuser check” on page 2-103.
• Faulty system board • Check the output bin flag.
• Faulty output bin flag
202.17 Exit sensor is made when the printer • Check for anything in the paper path that might
powers up or covers are closed. cause the paper to jam.
Possible causes: • The fuser exit sensor may not be functioning
properly. Go to “920.08—Exit sensor service
• Damaged paper exit sensor or check” on page 2-103.
paper exit sensor flag
• Damaged fuser autoconnect
• Faulty fuser DC cable connection
• Faulty fuser
• Faulty system board
202.21 Fuser motor stalled. • Check for anything in the paper path that might
cause the paper to jam.
Possible causes:
• If clearing a paper jam does not fix the problem,
• Faulty cable/connector go to “142.xx, 906.01–906.04—Motor (fuser)
• Faulty fuser motor error service check” on page 2-49.
• Faulty system board
Previous
Error code Description Action
202.31 Paper jam at exit sensor during warm- • Check for anything in the paper path that might
up. cause the paper to jam.
Possible causes: • The fuser exit sensor may not be functioning
properly. Go to “920.08—Exit sensor service
• Damaged paper exit sensor or Next
check” on page 2-103.
paper exit sensor flag
• Damaged fuser autoconnect
• Faulty fuser DC cable connection Go Back
• Faulty fuser
• Faulty system board
203.09 During duplex printing retract, the exit • Check for anything in the paper path that might
sensor is never made. cause the paper to jam.
Possible causes: • The fuser exit sensor may not be functioning
properly. Go to “203.09—Paper Jam error
• Damaged paper exit sensor or service check” on page 2-69.
paper exit sensor flag
• Transport belt module failure
• Damaged fuser autoconnect
• Faulty fuser DC cable connection
• Faulty fuser
• Faulty system board
203.14 During duplex printing retract, the exit • Ensure proper media is set for the type of paper
sensor broke early. used.
Possible causes: • The fuser exit sensor may not be functioning
properly. Go to “920.08—Exit sensor service
• Incorrect paper settings check” on page 2-103.
• Damaged paper exit sensor or
paper exit sensor flag
• Faulty fuser
• Faulty system board
203.15 During duplex printing, the exit sensor • Check the duplex paper path for damage that
never broke. would obstruct the print. If damage is found,
replace the front door assembly. See “Front
Possible causes: door assembly removal” on page 4-108.
• Damaged paper exit sensor or • The fuser exit sensor may not be functioning
paper exit sensor flag properly. Go to “920.08—Exit sensor service
• Obstructed duplex check” on page 2-103.
• Faulty fuser • The duplex motor may not be functioning
• Faulty system board properly. Go to “146.xx, 148.xx—Motor (MPF/
duplex) error service check” on page 2-55.
• Duplex motor failure
• Check the bin full sensor and bin full sensor flag.
• Faulty bin full sensor
203.20 During duplex, the page entered the • Check for anything in the duplex paper path that
duplex path before the previous page might cause the paper to jam. This includes the
cleared the path. paper guides in tray 1.
Possible causes: • If clearing the paper jam does not fix the
problem and the paper is fan-folded, replace the
• Defective input sensor front access assembly. See “Front door
• Faulty system board assembly removal” on page 4-108.
• Wrong media size selected • If clearing a paper jam does not fix the problem,
• Defective exit sensor go to “920.06—Input sensor service check”
on page 2-101.
• Make sure the selected media and media
definitions match.
• Check the exit sensor.
Previous
Error code Description Action
230.03 During duplex printing, the input • Check for anything in the duplex paper path that
sensor never broke. might cause the paper to jam. This includes the
paper guides in tray 1.
Possible causes:
• Go to “230.03, 230.05—Paper Jam error
• Obstructed duplex path Next
service check” on page 2-71.
• Duplex drive failure
• Defective input sensor
• Faulty system board Go Back
230.05 During duplex printing, the input • Check for anything in the duplex paper path that
sensor is not made. might cause the paper to jam. This includes the
paper guides in tray 1.
Possible causes:
• Go to “230.03, 230.05—Paper Jam error
• Obstructed duplex path service check” on page 2-71.
• Defective input sensor
• Faulty system board
• Faulty duplex drive
230.21 Duplex motor stalled. • Check for anything in the duplex paper path that
might cause the paper to jam. This includes the
Possible causes: paper guides in tray 1.
• Obstructed duplex path • If clearing a paper jam does not fix the problem,
• Defective duplex motor go to “146.xx, 148.xx—Motor (MPF/duplex)
• Faulty system board error service check” on page 2-55.
241.03 While feeding from tray 1, the input 1. Clear away anything in the paper path that might
sensor does not break. cause the paper to jam.
Possible causes: 2. Ensure proper media is set for the type of paper
used.
• Incorrect media setting 3. Fan media, and stack it flat in the tray or
• Incorrect paper loading multipurpose feeder.
• Incorrect media restraint setting 4. Properly set media restraints in paper tray.
• Paper pick mechanism failure 5. Check the pick arm rolls (tires) and replace if
• Transport belt motor failure worn.
If the problem persists, go to “200.11,
250.03—Paper Jam error service check” on
page 2-65.
241.05 While feeding from tray 1, the input 1. Remove all media present in the paper path.
sensor is never made. 2. Fan media, and stack it flat in the tray or
Possible causes: multipurpose feeder.
3. Properly set media restraints in paper tray.
• Incorrect paper loading
4. Check the pick arm rolls (tires) and replace if
• Incorrect media restraint setting worn.
• Pick art rolls (tires) failure If the problem persists, go to “140.xx,
• Paper pick mechanism failure 920.02—Autocomp (tray 1) motor error service
• System board failure check” on page 2-49.
241.21 Tray 1 motor stalled. 1. Remove all media present in the paper path.
Possible causes: 2. Ensure proper media is set for the type of paper
used.
• Incorrect paper loading 3. Fan media, and stack it flat in the tray or
• Paper pick mechanism failure multipurpose feeder.
• System board failure If the previous actions do not fix the problem, go to
“140.xx, 920.02—Autocomp (tray 1) motor error
service check” on page 2-49.
Previous
Error code Description Action
242.02 Tray 2 pass thru sensor made at • Check for anything in the paper path that might
POR. cause the paper to jam.
Possible causes: • If the error persists, go to “242.02—Paper Jam
service check” on page 2-72.
• Paper jam leaving paper over Next
sensor
• Defective pass thru sensor
Go Back
242.03 Pick timeout from tray 2 exceeded 1. Remove all media present in the paper path.
without a tray 2 sensor break. 2. Ensure proper media is set for the type of paper
Possible causes: used in tray 2.
3. Fan media, and stack flat in tray 2.
• Incorrect media setting
4. Properly set media restraints in tray 2.
• Incorrect paper loading
If the paper jam message persists, go to “242.03,
• Incorrect media restraint setting 242.11—Paper Jam service check” on
• Tray 2 assembly failure page 2-73.
• Aligner failure
• Transport belt module failure
242.05 Tray 2 picked, but page failed to reach 1. Ensure proper media is set for the type of paper
the option sensor in time. used in tray 2.
Possible causes: 2. Fan media, and stack flat in tray 2.
3. Properly set the media restraints in tray 2.
• Incorrect media setting
4. Check the pick arm rolls (tires) in tray 2 and
• Incorrect paper loading replace if worn.
• Incorrect media restraint setting If the previous actions do not fix the problem, go to
• Loading card stock from the “242.05—Paper Jam service check” on
special media tray above the fill page 2-74.
line
242.10 Tray 2 page exits pass thru made • Ensure the proper media is set for the type of
early. paper used in tray 2.
Possible causes: • Check for anything in the paper path that might
cause the paper to jam.
• Defective pass thru sensor • The exits pass thru sensor may not be
• Faulty cable in the connector functioning properly. Go to “242.10—Paper
JOPT1 on system board Jam service check” on page 2-75.
242.11 Tray 2 sensor never broke. 1. Ensure the proper media is set for the type of
paper used in tray 2.
Possible causes:
2. Fan media, and then stack flat in tray 2.
• Incorrect tray 2 media setting 3. Properly set the media restraints in tray 2.
• Incorrect Tray 2 paper loading Go to “242.03, 242.11—Paper Jam service
• Incorrect media restraint setting check” on page 2-73.
• Paper tray 2 failure
• Aligner failure
• Transport belt module failure
• Loading card stock from the
special media tray above the fill
line
• High humidity (replace paper)
242.17 Tray 2 detected a jam from idle. • Clear away anything in the paper path that might
cause the paper to jam.
Possible causes:
• If clearing a paper jam does not fix the problem,
• Paper jam leaving page over “242.17—Paper Jam service check” on
sensor page 2-76.
• Defective input sensor
• Faulty system board
Previous
Error code Description Action
242.21 Tray 2 motor stalled. 1. Remove all media present in the paper path.
Possible causes: 2. Ensure proper media is set for the type of paper
used.
• Incorrect paper loading 3. Fan media, and stack it flat in the tray or Next
• Paper pick mechanism failure multipurpose feeder.
• Printer option cable connector If the previous actions do not fix the problem, go to
damaged “242.21, 243.21, 244.21. 245.21, 242.30, 243.30,
• Input option damage. 244.30, 245.30—Paper Jam service check” on Go Back
• System board failure page 2-77.
242.26 While feeding from tray 2, the pass 1. Clear away anything in the paper path that might
thru sensor is not made. cause the paper to jam.
Possible causes: 2. Ensure the proper media is set for the type of
paper used in the lower tray.
• Incorrect paper loading for lower 3. Fan the media, and then stack flat in the lower
tray tray.
• Incorrect media restraint setting 4. Properly set the media restraints in the lower
for lower tray tray.
• Paper tray 2 assembly failure 5. Check the pick arm rolls (tires) in the lower tray,
• Lower tray 3 assembly failure and then replace if worn.
If the problem persists, go to “242.26—Paper Jam
service check” on page 2-77.
242.27 While feeding from a lower tray, pass • Clear away anything in the paper path that might
thru sensor did not break. cause the paper to jam.
Possible causes: • Reseat option tray 2.
• Go to “242.27—Paper Jam service check” on
• Paper tray 2 assembly failure page 2-78.
(feed through roller)
• Aligner failure
• Transport belt motor failure
242.29 Tray 2 is not ready or missing while • Make sure that tray 2 is correctly inserted.
printing. • Go to “242.29—Paper Jam service check” on
Possible cause is paper tray 2 page 2-78.
assembly failure
242.30 Tray 2 page reached pass-through 1. Remove all media present in the paper path.
sensor early. 2. Ensure proper media is set for the type of paper
Possible cause: used.
3. Fan media, and stack it flat in the tray or
• Incorrect paper loading multipurpose feeder.
• Paper pick mechanism failure If the previous actions do not fix the problem, go to
• Pick arm roll damaged “242.21, 243.21, 244.21. 245.21, 242.30, 243.30,
• Defective pass-through sensor 244.30, 245.30—Paper Jam service check” on
• Input option damaged page 2-77.
Previous
Error code Description Action
243.02 Tray 3 pass thru sensor made at • Check for anything in the paper path that might
POR. cause the paper to jam.
Possible causes: • If clearing a paper jam does not fix the problem,
see “243.02—Paper Jam service check” on
• Paper jam leaving page over the Next
page 2-79.
sensor
• Defective pass thru sensor
Go Back
243.03 Pick timeout from tray 3 exceeded 1. Remove all media present in the paper path.
without a tray 3 sensor break. 2. Ensure proper media is set for the type of paper
Possible causes: used in tray 3.
3. Fan media, and stack flat in tray 3.
• Tray 3 incorrect media setting
4. Properly set media restraints in tray 3.
• Tray 3 incorrect paper loading
If the previous actions do not fix the problem, go to
• Tray 3 incorrect media restraint “243.03, 243.11—Paper Jam service check” on
setting page 2-80.
• Tray 3 assembly failure
243.05 Tray 3 picked, but page failed to reach 1. Ensure proper media is set for the type of paper
the option sensor in time, used in tray 3.
Possible causes: 2. Fan media, and stack flat in tray 3.
3. Properly set the media restraints in tray 3.
• Tray 3 incorrect media setting
4. Check the pick arm rolls (tires) in tray 3 and
• Tray 3 incorrect paper loading replace if worn.
• Tray 3 incorrect media restraint If the previous actions do not fix the problem, go to
setting “243.05—Paper Jam service check” on
• Tray 3 paper pick mechanism page 2-81.
failure
• Loading card stock from the
special media tray above the fill
line
243.10 Tray 3 page exit pass thru sensor • Make sure the proper media is set for the type of
broken early. paper used in tray 3.
Possible causes: • Check for anything in the paper path that might
cause the paper to jam.
• Defective pass thru sensor • The exit pass thru sensor may not be
• Faulty cable in connector OPT1. functioning properly. Go to “243.10—Paper
Jam service check” on page 2-82.
243.11 Tray 3 sensor never broke. 1. Ensure the proper media is set for the type of
paper used in tray 3.
Possible causes:
2. Fan media, and then stack flat in tray 3.
• Incorrect tray 3 media setting 3. Properly set the media restraints in tray 3.
• Incorrect tray 3 paper loading 4. Check the pick arm rolls (tires) in tray 3 and
• Incorrect media restraint setting replace if worn.
• Paper tray failure If the problem persists, Go to “243.03,
• Aligner failure 243.11—Paper Jam service check” on
• Transport belt module failure page 2-80.
• Loading card stock from the
special media tray above the fill
line
• High humidity (replace paper)
243.17 Tray 3 detected a jam from idle. • Clear away anything in the paper path that might
cause the media to jam.
Possible causes:
• If the problem persists, go to “243.17—Paper
• Paper jam leaving page over Jam service check” on page 2-83.
sensor
• Defective input sensor
• Faulty system card
Previous
Error code Description Action
243.21 Tray 3 motor stalled. 1. Remove all media present in the paper path.
Possible causes: 2. Ensure proper media is set for the type of paper
used.
• Incorrect paper loading 3. Fan media, and stack it flat in the tray or Next
• Paper pick mechanism failure multipurpose feeder.
• Printer option cable connector If the previous actions do not fix the problem, go to
damaged “242.21, 243.21, 244.21. 245.21, 242.30, 243.30,
• Input option damage. 244.30, 245.30—Paper Jam service check” on Go Back
• System board failure page 2-77.
243.26 While feeding from a lower tray, tray 3 1. Clear away anything in the paper path that might
pass thru sensor is not made. cause the media to jam.
Possible causes: 2. Make sure proper media is set for the type of
paper used in lower feeding tray.
• Incorrect paper loading for lower 3. Fan media, and stack flat in the lower feeding
tray tray.
• Incorrect media restraint setting 4. Properly set media restraints in the lower
for lower tray feeding tray.
• Paper tray 3 assembly failure 5. Check the pick arm rolls in lower tray and
• Lower tray 4 assembly failure replace if worn.
If the problem persists, go to “243.26—Paper Jam
service check” on page 2-84.
243.27 While feeding from a lower tray, tray 3 • Clear away anything in the paper path that might
pass thru sensor did not break. cause the paper to jam.
Possible cause is a paper tray 3 • Reseat option tray 3
assembly failure • If the problem persists, go to “243.27—Paper
Jam service check” on page 2-84.
243.29 Tray 3 is not ready while printing. • Make sure that tray 3 is correctly inserted.
Possible cause is paper tray 3 • If the problem persists, go to “243.29—Paper
assembly failure. Jam service check” on page 2-84.
243.30 Tray 3 page reached pass-through 1. Remove all media present in the paper path.
sensor early. 2. Ensure proper media is set for the type of paper
Possible cause: used.
3. Fan media, and stack it flat in the tray or
• Incorrect paper loading multipurpose feeder.
• Paper pick mechanism failure If the previous actions do not fix the problem, go to
• Pick arm roll damaged “242.21, 243.21, 244.21. 245.21, 242.30, 243.30,
• Defective pass-through sensor 244.30, 245.30—Paper Jam service check” on
• Input option damaged page 2-77.
Previous
Error code Description Action
244.02 Tray 4 pass thru sensor made at • Check for anything in the paper path that might
POR. cause the paper to jam.
Possible causes: • If the problem persists, go to “244.02—Paper
Jam service check” on page 2-85.
• Paper jam leaving page over the Next
sensor
• defective pass thru sensor
Go Back
244.03 Pick timeout from tray 4 was 1. Remove all media present in the paper path.
exceeded without a tray 4 sensor 2. Maker sure proper media is set for the type of
break. paper used in tray 4.
Possible causes: 3. Fan the media, and stack flat in tray 4.
• Tray 4 incorrect media setting 4. Properly set media restraints in tray 4.
• Tray 4 incorrect paper loading If the problem persists, go to “244.03,
244.11—Paper Jam service check” on
• Tray 4 incorrect media restraint page 2-86.
setting
• Tray 4 assembly failure
• Aligner failure
• Transport belt module failure
244.05 Tray 4 picked, but page failed to reach 1. Ensure proper media is set for the type of paper
the option sensor in time. used in tray 4.
Possible causes: 2. Fan media, and stack flat in tray 4.
3. Properly set the media restraints in tray 4.
• Tray 4 incorrect media setting
4. Check the pick arm rolls (tires) in tray 4 and
• Tray 4 incorrect paper loading replace if worn.
• Tray 4 incorrect media restraint If the problem persists, go to “244.05—Paper Jam
setting service check” on page 2-86.
• Tray 4 paper pick mechanism
assembly failure
• Loading card stock from the
special media tray above the fill
line
244.10 Tray 4 page exit pass thru made early. • Make sure proper media is set for the type of
paper used in tray 4.
Possible causes:
• Check for anything in the paper path that might
• Defective pass thru sensor cause the paper to jam.
• Faulty cable in connector OPT1 • The exit pass thru sensor may not be
functioning properly. Go to “244.10—Paper
Jam service check” on page 2-87.
244.11 Tray 4 sensor never broke. 1. Ensure the proper media is set for the type of
paper used in tray 4.
Possible causes:
• Fan media, and then stack flat in tray 4.
• Incorrect tray 4 media setting • Properly set the media restraints in tray 4.
• Incorrect tray 4 paper loading If the problem persists, go to “244.03,
• Incorrect media restraint setting 244.11—Paper Jam service check” on
• Paper tray failure page 2-86.
• Aligner failure
• Transport belt module failure
• Loading card stock from the
special media tray above the fill
line
• High humidity (replace paper)
Previous
Error code Description Action
244.17 Tray 4 detected a jam from idle. • Clear away anything in the paper path that might
cause the paper to jam.
Possible causes:
• If clearing a paper jam does not fix the problem,
• Paper jam leaving page over the go to “243.17—Paper Jam service check” on
sensor Next
page 2-83.
• defective input sensor
• Faulty system board
Go Back
244.21 Tray 4 motor stalled. 1. Remove all media present in the paper path.
Possible causes: 2. Ensure proper media is set for the type of paper
used.
• Incorrect paper loading 3. Fan media, and stack it flat in the tray or
• Paper pick mechanism failure multipurpose feeder.
• Printer option cable connector If the previous actions do not fix the problem, go to
damaged “242.21, 243.21, 244.21. 245.21, 242.30, 243.30,
• Input option damaged 244.30, 245.30—Paper Jam service check” on
• System board failure page 2-77.
244.26 While feeding from a lower tray, tray 4 1. Clear away anything in the paper path that might
pass thru sensor is not made. cause the paper to jam.
Possible causes: 2. Make sure the proper media is set for the type of
paper used in the lower tray.
• Incorrect paper loading for the 3. Fan the media, and stack flat in the lower tray.
lower tray
4. Properly set the media restraints in the lower
• Incorrect media restraint setting tray.
for the lower tray
5. Check the pick arm rolls in the lower feeding tray
• Paper tray 4 assembly failure and replace if worn.
• Paper tray 5 assembly failure If the problem persists, go to “244.26—Paper Jam
service check” on page 2-88.
244.27 While feeding from a lower tray, tray 4 • Clear away anything in the paper path that might
pass thru sensor did not break. cause the paper to jam.
Possible cause is paper tray 4 • Reseat option tray 4.
assembly failure. • If the problem persists, go to “244.27—Paper
Jam service check” on page 2-89.
244.29 Tray 4 is not ready, or missing while • Make sure that tray 4 is correctly inserted.
printing. • If the problem persists, go to “244.29—Paper
Possible cause is paper tray 4 Jam service check” on page 2-89.
assembly failure.
244.30 Tray 4 page reached pass-through 1. Remove all media present in the paper path.
sensor early. 2. Ensure proper media is set for the type of paper
Possible cause: used.
3. Fan media, and stack it flat in the tray or
• Incorrect paper loading multipurpose feeder.
• Paper pick mechanism failure If the previous actions do not fix the problem, go to
• Pick arm roll damaged “242.21, 243.21, 244.21. 245.21, 242.30, 243.30,
• Defective pass-through sensor 244.30, 245.30—Paper Jam service check” on
• Input option damaged page 2-77.
Previous
Error code Description Action
245.02 Tray 5 pass thru sensor made at • Check for anything in the paper path that might
POR. cause the media to jam.
Possible causes: • If the problem persists, go to “245.17—Paper
Jam service check” on page 2-93.
• Paper jam leaving a page over the
sensor
• Defective pass thru sensor
245.03 Pick timeout from tray 5 exceeded 1. Remove all media present in the paper path.
without a tray sensor break. 2. Make sure proper media is set for the type of
Possible causes: paper used in tray 5.
3. Fan the media, and stack flat in tray 5.
• Tray 5 incorrect media setting
4. Properly set the media restraints in tray 5.
• Tray 5 incorrect paper loaded
If the problem persists, go to “245.03,
• Tray 5 incorrect media restraint 245.11—Paper Jam service check” on
setting page 2-91.
• Tray 5 assembly failure
• Aligner failure
• Transport module failure
245.05 Possible causes: 1. Ensure proper media is set for the type of paper
used in tray 5.
• Incorrect media setting
2. Fan media, and stack flat in tray 5.
• Incorrect paper loading
3. Properly set the media restraints in tray 5.
• Incorrect media restraint setting
4. Check the pick arm rolls (tires) in tray 5 and
• Tray 5 paper pick mechanism replace if worn.
• Loading card stock from the If the problem persists, go to “245.05—Paper Jam
special media tray above the fill service check” on page 2-91.
line
245.10 Tray 5 page exits pass thru sensor • Make sure the proper media is set for the type of
broken early. paper used in tray 5.
Possible causes: • Check for anything in the paper path that might
cause the paper to Jam.
• Defective pass thru sensor • The exits pass thru sensor may not be
• Faulty cable in connector JOPT1 functioning properly. Go to “245.10—Paper
on the system board Jam service check.
Previous
Error code Description Action
245.11 Tray 5 sensor never broke. 1. Ensure the proper media is set for the type of
paper used in tray 5.
Possible causes:
2. Fan media, and then stack flat in tray 5.
• Incorrect tray 5 media setting 3. Properly set the media restraints in tray 5. Next
• Incorrect tray 5 paper loading 4. Check the pick arm rolls (tires) in tray 5 and
• Incorrect media restraint setting replace if worn.
• Paper tray failure If the problem persists, go to “245.03,
• Aligner failure 245.11—Paper Jam service check” on Go Back
• Transport belt module failure page 2-91.
• Loading card stock from the
special media tray above the fill
line
• High humidity (replace paper)
245.17 Tray 5 detected a jam from idle. • Clear away anything in the paper path that might
cause the paper to jam.
Possible causes:
• If the problem persists, go to “245.17—Paper
• Paper jam leaves a page over the Jam service check.
sensor
• Defective input sensor
• Faulty system board
245.21 Tray 5 motor stalled. 1. Remove all media present in the paper path.
Possible causes: 2. Ensure proper media is set for the type of paper
used.
• Incorrect paper loading 3. Fan media, and stack it flat in the tray or
• Paper pick mechanism failure multipurpose feeder.
• Printer option cable connector If the previous actions do not fix the problem, go to
damaged “242.21, 243.21, 244.21. 245.21, 242.30, 243.30,
• Input option damaged 244.30, 245.30—Paper Jam service check” on
• System board failure page 2-77.
245.29 Tray 5 is not ready or missing while • Make sure that tray 5 is correctly inserted.
printing. • If the problem persists, go to “245.29—Paper
Possible cause paper tray 5 assembly Jam service check” on page 2-94.
failure.
245.30 Tray 5 page reached pass-through 1. Remove all media present in the paper path.
sensor early. 2. Ensure proper media is set for the type of paper
Possible cause: used.
3. Fan media, and stack it flat in the tray or
• Incorrect paper loading multipurpose feeder.
• Paper pick mechanism failure If the previous actions do not fix the problem, go to
• Pick arm roll damaged “242.21, 243.21, 244.21. 245.21, 242.30, 243.30,
• Defective pass-through sensor 244.30, 245.30—Paper Jam service check” on
• Input option damaged page 2-77.
Previous
Error code Description Action
250.03 While feeding from the multipurpose 1. Remove all media present in the paper path.
feeder, the input sensor did not break. 2. Ensure proper media is set for the type of paper
Possible causes: used.
3. Fan media, and stack it flat in the tray or Next
• Incorrect media setting multipurpose feeder.
• Incorrect paper loading 4. Properly set media restraints in the paper tray.
• Incorrect media restraint setting 5. Replace the paper tray.
• Transport belt failure If the problem persists, to “200.11, 250.03—Paper Go Back
• Paper tray failure Jam error service check” on page 2-65.
250.05 While feeding from the multipurpose 1. Remove all the media present in the paper path.
feeder, the input sensor is not made. 2. Ensure proper media is set for the type of paper
Possible causes: used.
3. Fan media, and stack it flat in the tray or
• Incorrect media setting multipurpose feeder.
• Incorrect paper loading 4. Properly set media restraints in the paper tray.
• Incorrect media restraint setting 5. Check the MP feeder pick tires and clean if
• Multipurpose feeder pick necessary.
mechanism failure 6. Replace the paper tray.
• System board failure If the previous actions do not fix the problem, go to
“146.xx, 148.xx—Motor (MPF/duplex) error
service check” on page 2-55
250.21 Multipurpose feeder motor stalled. 1. Remove all the media present in the paper path.
Possible causes: 2. Ensure proper media is set for the type of paper
used.
• Multipurpose feeder motor failure 3. Fan media, and stack it flat in the tray or
• Cabling failure multipurpose feeder.
• Multipurpose feeder gear 4. Properly set media restraints in the multipurpose
assembly failure feeder.
• System board failure If the previous actions do not fix the problem, go to
• Defective media present sensor “146.xx, 148.xx—Motor (MPF/duplex) error
service check” on page 2-55.
Previous
Error code Description Action
900.00–900.99 Unrecoverable RIP software error. Go to “Steps before starting the 9yy service
Software Error checks” on page 2-94. Next
(except 900.05)
Go to “900.00–900.99 (except 900.05)—System
software error service check” on page 2-95.
Go Back
900.05 Transfer module has failed • POR the printer.
Software Error. • If the error message persists, go to
“900.05—Transfer module error service
check” on page 2-98.
Previous
Error code Description Action
920.09 Four toner sensors are not connected. • POR the printer.
POST Error • If the error message persists, go to
“920.09—POST (power-on self test)—Four
toner sensors not connected error service
check” on page 2-104.
920.11 Two toner sensors are not connected. • POR the printer.
POST Error • If the error message persists, go to
“920.11—POST (power-on self test)—Two
toner sensors not connected error service
check” on page 2-106.
Previous
Error code Description Action
920.22 Fuser bubble sensor is not connected. If the error message persists, go to “Bubble
POST Error sensor service check” on page 2-125.
Previous
Error code Description Action
920.30 Option sensor disconnected. Use the following list to determine which service Next
POST Error check to use:
• Tray 2—Go to “242.02—Paper Jam service
check” on page 2-72. Go Back
• Tray 3—Go to “243.02—Paper Jam service
check” on page 2-79.
• Tray 4—Go to “244.02—Paper Jam service
check” on page 2-85.
• Tray 5—Go to “245.02—Paper Jam service
check” on page 2-90.
920.31 Option hardware error (generic) Contact your next level of support.
POST Error
Previous
Error code Description Action
952.01–952.99 CRC error has occurred. This is Perform a POR to clear the error.
NVRAM Error recoverable.
Previous
Error code Description Action
978.00–978.99 Bad checksum while programming Contact your next level of support.
Network Error network port
979.00–979.99 Flash parts failed while programming Contact your next level of support.
Network Error network port.
Previous
Error code Description Action
1565 Emul Error Load The DLE version contained in the firmware card will not function with the printer code. The
Emul Option message automatically clears in 30 seconds and the DLE is disabled. Download the correct
version of the DLE.
In IRs
Previous
Service checks
31.xx—Cartridge errors service check
Next
Step Questions / actions Yes No
3 Reseat the toner cartridges and make sure Problem resolved. Go to step 4.
they are installed to their correct color slots.
Did this fix the problem?
4 1. Check the contacts on the toner cartridge Replace toner cartridge. Go to step 5.
chip for damage and contamination.
2. Clean the contacts.
Are the chip contacts damaged?
5 1. Check the cartridge contact and bell crank Replace the cartridge Go to step 6.
on the printer. contact with bell crank.
2. Press each of the contacts to check the Note: Only replace the
spring force. parts that are damaged.
3. Check the bell crank for any damage.
Are the bell crank and cartridge contacts
damaged?
6 1. Check JSB1 on the system board for Replace the cartridge Go to step 7.
proper connection. contact with bell crank.
2. Check for damage and pinch points on the Note: Only replace the
connector. parts that are damaged.
3. Reseat cable.
Is the cable connector free of damaged?
7 Check the whole length of the cable going to Replace the cartridge Go to step 8.
the cartridge contact. Check for any damage contact with bell crank.
and pinch points.
Note: Only replace the
Are the cables damaged? parts that are damaged.
8 Replace the system board. See “System Problem resolved. Replace the cartridge
board removal” on page 4-163. contact with bell crank.
Did this fix the problem? Note: Only replace the
parts that are damaged.
Previous
Step Questions / actions Yes No
2 Turn the printer off, and then remove the rear Replace the printhead. See Go to step 3.
frame cover. See “Rear frame cover “Printhead removal,
removal” on page 4-47. Check the cable in installation, and
connector JMIRR1 for proper connection to adjustment” on
the system board, the printhead cable for page 4-153. Next
pinch points, and the cable or connector for
any other damage.
Is the cable damaged? Go Back
3 Measure the continuity across all of the fuses Replace the system board. Go to step 4.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
4 Perform the printhead verification to check Replace the printhead. See Replace the system board.
whether the new printhead will solve the “Printhead removal, See “System board
problem. See “Printhead verification” on installation, and removal” on page 4-163.
page 3-39. adjustment” on
page 4-153.
Perform the Mirror Motor Test. See “Mirror
Motor Test” on page 3-20.
Did the Mirror Motor pass the test?
2 Turn the printer off, and then remove the rear Replace the 5 V interlock Go to step 3.
frame cover. See “Rear frame cover switch. See “5 V interlock
removal” on page 4-47. Check the cable in switch cable removal” on
connector JPH1 for proper connection to the page 4-61.
system board, the cable for pinch points, and
the cable or connector for any other damage.
Is the cable damaged?
3 Measure the continuity across all of the fuses Replace the system board. Go to step 4.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
4 Perform the printhead verification to check Replace the printhead. See Replace the system board.
whether the new printhead solves the “Printhead removal, See “System board
problem. See “Printhead verification” on installation, and removal” on page 4-163.
page 3-39. adjustment” on
page 4-153.
Perform the Servo Laser Test. See “Servo
Laser Test” on page 3-20.
Did the printhead motor pass the test?
1 Check the input voltage switch on the back of Go to step 2. Set the switch for the
the low-voltage power supply (LVPS). proper country voltage. Next
Note: Some LVPS FRU do not have switches
and switch automatically. If your does not
have a switch, go to step 2. Go Back
230
A
Is the voltage level (115 V/230 V) properly
set?
2 1. Remove the fuser. See “Fuser removal” Replace the appropriate Go to step 3.
on page 4-118. cable. See “Fuser AC
2. Check the fuser AC autoconnect cable for cable removal” on
damage, check the other end of the cable page 4-120 or “Fuser DC
for damaged pins. cable removal” on
page 4-121.
Fuser autoconnects
DC autoconnect
On printer
AC autoconnect
Previous
Step Questions / actions Yes No
4 Remove the rear frame cover. See“Rear Replace the fuser DC Go to step 5.
frame cover removal” on page 4-47. Check cable.See “Fuser DC
the cable in connector JFUSER1 (fuser DC cable removal” on
cable) for proper connection to the system page 4-121.
board, the cable for pinch points, and the Next
cable or connector for any other damage.
Is the cable damaged?
Go Back
5 Check the cable in connector JLVPS2 for Replace the LVPS. See Go to step 6.
proper connection to the system board, the “Low-voltage power
cable for pinch points, and the cable or supply (LVPS) removal”
connector for any other damage. on page 4-127.
Is the cable damaged?
6 Measure the continuity across all of the fuses Replace the system board. Go to step 7.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
7 Check for the following continuity between the Go to step 8. Replace the fuser DC
DC autoconnect JFUSER1 on the system cable. See “Fuser DC
board. cable removal” on
page 4-121.
DC auto- JFUSER1
connect
Pin 9 Pin 9
Pin 10 Pin 10
Is continuity present?
8 Check for continuity between the following Replace the system board. Replace the fuser AC
pins of the AC autoconnect and the pins of See “System board cable. See “Fuser AC
the connector that connects to the LVPS. removal” on page 4-163. cable removal” on
page 4-120.
LVPS AC Auto-
connect connect
Pin 1 Pin 5
Pin 3 Pin 1
Is continuity present?
2 Measure the continuity across all of the fuses Replace the system board. Go to step 3.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
3 1. Disconnect the cable in the connector Replace the paper pick Replace the system board.
JFDPCK1. mechanism. See “Paper See “System board
2. Connect the cable for the new paper pick pick mechanism removal” on page 4-163.
mechanism. assembly removal” on
3. Bring the printer up in Diagnostics Menu page 4-145.
(Turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
4. Navigate to MOTOR TESTS > Tray 1.
Did the new pick motor turn before the feed
error occur?
Previous
Step Questions / actions Yes No
Go Back
4 Measure the continuity across all of the fuses Replace the system board. Go to step 5.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
5 1. Plug the cartridge motor1/fuser motor Replace EP drive replace the system board.
cable to a new EP drive assembly. assembly. See See “System board
2. Bring the printer up in Diagnostics Menu “Electrophotographic removal” on page 4-163.
(Turn off the printer, press and hold (EP) drive assembly
buttons 3 and 6, then turn on the printer). removal” on page 4-98.
3. Navigate to MOTOR TESTS > Tray 1.
Did the error clear?
143.xx—Motor (EP drive assembly top cartridge 1 motor) error service check Previous
2 Remove the right cover. See “Right cover Replace the cartridge Go to step 3.
removal” on page 4-51. Check the cartridge motor 1/fuser motor cable.
motor 1/fuser motor cable (A) for proper See “Cartridge motor 1/
connection to the EP drive assembly, for fuser cable removal” on
pinch points for the cable, or damage to the page 4-74.
cable or connector.
3 Measure the continuity across all of the fuses Replace the system board. Go to step 4.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
Previous
Step Questions / actions Yes No
5 1. Return the old motor 1/fuser motor cable. Replace the EP drive Go to step 6.
2. Disconnect the motor drive cable from the assembly. See
EP drive assembly and connect it to the “Electrophotographic
motor on a new EP drive assembly. (EP) drive assembly
removal” on page 4-98. Next
Note: Do not install the new EP drive
assembly yet.
3. Run diagnostic motor check. Bring the
printer up in Diagnostics Menu (turn off Go Back
the printer, press and hold buttons 3 and
6, then turn on the printer).
4. Select MOTOR TESTS.
Did the motor run?
6 1. Connect the new EP drive assembly with Replace the cable. Replace the system board.
a new cable from outside the machine. See “System board
2. Run diagnostics motor check. Bring the removal” on page 4-163.
printer up in Diagnostics Menu (turn off
the printer, press and hold buttons 3 and
6, then turn on the printer).
3. Select MOTOR TESTS.
Did motor run?
Previous
Step Questions / actions Yes No
2 Remove the right cover. See “Right cover Replace the cartridge Go to step 3.
removal” on page 4-51. Check the cartridge motor 2/3 cable. See
motor 2/3 cable for proper connection to the “Cartridge motor 2/3
EP drive assembly, pinch points for the cable, cable removal” on
or damage to the cable or connector (A). page 4-77. Next
Go Back
3 Measure the continuity across all of the fuses Replace the system board. Go to step 4.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
4 1. Disconnect the cartridge motor 2/3 cable Replace the cartridge Go to step 5.
on the motor and on the system board. motor 2/3 cable. See
2. Connect a new motor 1/fuser motor cable “Cartridge motor 2/3
on the motor and on the system board. cable removal” on
3. Run diagnostics motor check. Bring the page 4-77.
printer up in Diagnostics Menu (turn off
the printer, press and hold buttons 3 and
6, then turn on the printer).
4. Select MOTOR TESTS.
5 1. Return the old cartridge motor 2/3 motor Replace the EP drive Replace the system board.
cable. assembly. See See “System board
2. Disconnect the motor drive cable from the “Electrophotographic removal” on page 4-163.
EP drive assembly and connect it to the (EP) drive assembly
motor on a new EP drive assembly. removal” on page 4-98.
Note: Do not install the new EP drive
assembly yet.
3. Run diagnostic motor check. Bring the
printer up in Diagnostics Menu (turn off
the printer, press and hold buttons 3 and
6, then turn on the printer).
4. Select MOTOR TESTS.
145.xx—Motor (EP drive assembly bottom cartridge) error service check Previous
2 Remove the right cover. Check the cartridge Replace the cartridge Go to step 3.
motor 2/3 cable for proper connection to the motor 2/3 cable. See
EP drive assembly, pinch points for the cable, “Cartridge motor 2/3
and damage to the cable or connector (A). cable removal” on
page 4-77.
3 Measure the continuity across all of the fuses Replace the system board. Go to step 4.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
4 1. Disconnect the cartridge motor 2/3 cable Replace the cartridge Go to step 5.
on the motor and on the system board. motor 2/3 cable. See
2. Connect a new cartridge motor 2/3 cable “Cartridge motor 2/3
on the motor and on the system board. cable removal” on
3. Run diagnostics motor check. Bring the page 4-77.
printer up in Diagnostics Menu (turn off
the printer, press and hold buttons 3 and
6, then turn on the printer).
4. Select MOTOR TESTS.
Did the motor run?
Previous
Step Questions / actions Yes No
5 1. Return the old motor 1/fuser motor cable. Replace the EP drive Go to step 6.
2. Disconnect the motor drive cable from the assembly. See
EP drive assembly and connect it to the “Electrophotographic
motor on a new EP drive assembly. (EP) drive assembly
removal” on page 4-98. Next
Note: Do not install the new EP drive
assembly yet.
3. Run diagnostic motor check. Bring the
printer up in Diagnostics Menu (turn off Go Back
the printer, press and hold buttons 3 and
6, then turn on the printer).
4. Select MOTOR TESTS.
Did the motor run?
6 1. Connect the new EP drive assembly with Replace the cable. Replace the system board.
a new cable from outside the machine. See “System board
2. Run diagnostics motor check. Bring the removal” on page 4-163.
printer up in Diagnostics Menu (turn off
the printer, press and hold buttons 3 and
6, then turn on the printer).
3. Select MOTOR TESTS.
Did motor run?
Previous
Step Questions / actions Yes No
4 1. Connect a new MPF motor with cable to Go to step 5. Replace the system board.
the JDX1 connector on the system board See “System board
from outside of the machine. removal” on page 4-163.
2. Bring the printer up in Diagnostics Menu
Next
(Turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
3. Navigate to MOTOR TESTS > Duplex >
Forward or Reverse. Go Back
Note: Perform this test for 5 to 10
seconds only.
4. Navigate to MOTOR TESTS > MPF Test>
Forward or Reverse.
Note: Perform this test for 5 to 10
seconds only.
5. Check if the motor would turn for each
test.
Does this clear the problem?
5 1. Disconnect the MPF motor cable on the Go to step 6. Replace the MPF duplex
motor side. motor assembly. See
2. Connect a new motor from outside of the “Multipurpose feeder
machine. (MPF)/duplex motor
3. Bring the printer up in Diagnostics Menu assembly removal” on
(Turn off the printer, press and hold page 4-133.
buttons 3 and 6, then turn on the printer).
4. Navigate to MOTOR TESTS > Duplex >
Forward or Reverse.
Note: Perform this test for 5 to 10
seconds only.
5. Navigate to MOTOR TESTS > MPF Test>
Forward or Reverse.
Note: Perform this test for 5 to 10
seconds only.
6. Check if the motor would turn for each
test.
Does the error still exist?
6 Connect a new MPF motor cable to the old Go to step 7. Replace the MPF/duplex
MPF motor and connect it to JDX1 connector motor cable. See
on the system board. “Multipurpose feeder
(MPF)/duplex motor
Does the error still exist? cable removal” on
page 4-136.
Previous
Step Questions / actions Yes No
8 1. Check the front door assembly gears that Replace the front door Go to step 9.
engages to the MPF/duplex gear for any assembly. See “Front
damage. door assembly removal”
2. Close the front door assembly and open on page 4-108.
Next
the front door cover.
3. Check if the front door cover assembly
gears can engage the MPF/duplex gear.
4. Manually turn the gears. Go Back
5. Check the front door assembly for any
damage.
Is the front door assembly gear or the front
door assembly damaged?
9 1. Check the MPF tray for any damage. Go to step 10. Replace the input tray.
2. Manually turn the MPF gear on the tray,
and check if the MPF pick arm assembly
would turn.
3. Bring the printer up in Diagnostics Menu
(Turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
4. Lift the MPF pick arm using the lever.
5. Select MOTOR TESTS > MPF >
Forward.
6. Check if the pick arm would turn.
Is the MPF pick arm assembly free of
damage?
10 Remove the input tray and insert a new one. Problem resolved. Replace the system board.
See “System board
Does this fix the problem? removal” on page 4-163.
147.xx, 906.05-906.08, 920.01—POST (power-on self test) aligner error service check
2 Check the cable in the connector JFDPCK1 Replace paper pick Go to step 3.
for pinch points and for any other damage to mechanism. See “Paper
the cable or connector. pick mechanism
assembly removal” on
Is the cable damaged? page 4-145.
Previous
Step Questions / actions Yes No
3 1. Disconnect the cable in connector Replace the paper pick Replace the system board.
JFDPCK1 and connect the cable from the mechanism. See “Paper See “System board
new paper pick mechanism to JFDPCK1. pick mechanism removal” on page 4-163.
Let the paper pick assembly hang. assembly removal” on
page 4-145. Next
2. Close the front cover and install the waste
box on the side of the printer.
3. Bring the printer up in Diagnostics Menu
(turn off the printer, press and hold Go Back
buttons 3 and 6, then turn on the printer).
4. Navigate to MOTOR TESTS > Align
Motor Test > Forward.
Does the aligner motor run?
2 Remove the right cover. See “Right cover Replace the motor driver Go to step 3.
removal” on page 4-51. Check the motor cable. See “Motor driver
driver cable (A) for proper connection to the cable removal” on
EP drive assembly, pinch points for the cable, page 4-130.
and damage for the cable or connector.
Previous
Step Questions / actions Yes No
3 Check the CAM motor cable from the cam Replace the EP drive Go to step 4.
motor to the motor driver card for poor assembly. See
connections or damage. “Electrophotographic
(EP) drive assembly
removal” on page 4-98. Next
Go Back
4 Measure the continuity across all of the fuses Replace the system board. Go to step 5.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
5 Visually inspect the motor driver card. Replace the motor driver Go to step 6.
card. See “Motor driver
card removal” on
page 4-129.
6 1. Connect a new motor driver card without Install the new motor driver Go to step 7.
mounting it to the printer. card.
2. Bring the printer up in Diagnostics Menu
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
3. Navigate to MOTOR TESTS > CAM.
Did the motor run?
7 1. Reinstall old motor driver card to the Replace EP drive Replace system board.
printer. assembly. See See “System board
2. Plug in the CAM motor of the EP drive “Electrophotographic removal” on page 4-163.
assembly to the EP driver card electrically (EP) drive assembly
without installing it into printer. removal” on page 4-98.
3. Bring the printer up in Diagnostics Menu
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
4. Navigate to MOTOR TESTS > CAM.
Did the motor run?
2 Measure the continuity across all of the fuses Replace the system board. Go to step 3.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
3 1. Disconnect the cable in connector JBOR1 Replace the COD Replace the system board.
and then connect the cable from the new assembly. See “Color on See “System board
COD group assembly. demand assembly removal” on page 4-163.
2. Bring the printer up in Diagnostics Menu removal” on page 4-78.
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
3. Navigate to MOTOR TESTS > COD >
Forward. If nothing happens, select
Reverse.
Did the COD motor pass the test?
Previous
Step Questions / actions Yes No
3 Remove the right cover. See “Right cover Replace the option cable. Go to step 4.
removal” on page 4-51. See “Option cable
removal” on page 4-143.
Check the option cable for pinch points and
any damage. Next
Go Back
4 Is the option tray 2 the high-capacity input tray Replace the HCIT top plate Replace the option tray 2
(2,000-sheet feeder)? assembly. See “Top plate assembly.
assembly removal” on
page 4-214.
3 Check the top and bottom autoconnect Replace tray 2 550 input Go to step 4.
connectors of tray 2 (input option above tray option
3) for damages.
Are the autoconnect connectors damaged?
4 Check the top and bottom autoconnect • For 550 option, replace Go to step 5.
connectors of tray 3 for damages. tray 3 550 input option.
Are the autoconnect connectors damaged? • For HCIT, replace the
HCIT top plate
assembly.
Previous
Step Questions / actions Yes No
5 1. Turn the printer off. Replace the option cable. • For 550 option, replace
2. Remove the rear frame cover. See “Rear See “Option cable tray 3 550 input option.
frame cover removal” on page 4-47. removal” on page 4-143. • For HCIT, replace the
3. Check the option cable in connector HCIT top plate
Next
JOPT1 on the system board for proper assembly.
connection, for cable pinch points, and for
any other damage to the cable or
connector. Go Back
4. Remove the right cover. See “Right
cover removal” on page 4-51,
5. Check the option cable for pinch points
and any damage.
6. Check the autoconnect connector for
damage.
3 Check the top and bottom autoconnect Replace tray 2 550 input Go to step 4.
connectors of tray 2 (input option above tray option
3) for damages.
Are the autoconnect connectors damaged?
4 Check the top and bottom autoconnect • For 550 option, replace Go to step 5.
connectors of tray 3 for damages. tray 3 550 input option.
Are the autoconnect connectors damaged? • For HCIT, replace the
HCIT top plate
assembly.
Previous
Step Questions / actions Yes No
5 1. Turn the printer off. Replace the option cable. • For 550 option, replace
2. Remove the rear frame cover. See “Rear See “Option cable tray 3 550 input option.
frame cover removal” on page 4-47. removal” on page 4-143. • For HCIT, replace the
3. Check the option cable in connector HCIT top plate
Next
JOPT1 on the system board for proper assembly.
connection, for cable pinch points, and for
any other damage to the cable or
connector. Go Back
4. Remove the right cover. See “Right
cover removal” on page 4-51,
5. Check the option cable for pinch points
and any damage.
6. Check the autoconnect connector for
damage.
3 Remove the right cover. See “Right cover Replace the option cable. Go to step 4
removal” on page 4-51. See “Option cable
removal” on page 4-143.
Check the option cable for pinch points and
any damage.
Previous
Step Questions / actions Yes No
4 Is the option tray 5 the high-capacity input tray Replace the HCIT top plate Replace the option tray 5
(2,000-sheet feeder)? assembly. See “Top plate assembly.
assembly removal” on
page 4-214.
Next
Go Back
1 Is the paper properly loaded in the high- Go to step 2. Fan the media, and then
capacity input tray (HCIT)? stack flat in the HCIT Next
drawer.
4 1. Remove the HCIT right cover. See“HCIT Replace the elevator-up Replace the elevator motor
right cover removal” on page 4-204. cable. with sensor. See “HCIT
2. Check the cable in the HCIT. elevator motor with
Is the cable damaged? sensor removal” on
page 4-208.
1 Open the front access door. Turn the Go to step 2. Replace the transport belt.
transport belt gear clockwise. See “Transfer module
removal” on page 4-179.
Previous
Step Questions / actions Yes No
2 Run align motor test with old pick assembly Go to “920.06—Input Go to step 3.
installed in the machine. sensor service check” on
page 2-101.
1. Bring the printer up in Diagnostics Menu
(turn off the printer, press and hold Next
buttons 3 and 6, then turn on the printer).
2. Navigate to MOTOR TESTS > Align
Motor Test > Forward.
Can you hear the align motor run? Go Back
3 1. Plug in the new pick assembly into the Replace the paper pick Replace the system board.
JFDPCK1 connector from outside the mechanism. See “Paper See “System board
machine. pick mechanism removal” on page 4-163.
2. Bring the printer up in Diagnostics Menu assembly removal” on
(turn off the printer, press and hold page 4-145.
buttons 3 and 6, then turn on the printer).
3. Navigate to MOTOR TESTS > Align
Motor Test > Forward.
Can you hear the align motor run?
1 Open the front access door. Turn the Go to step 2. Replace the transport
transport belt gear clockwise. module. See “Transfer
module removal” on
page 4-179.
2 1. Bring the printer up in Diagnostics Menu Go to step 3. Replace the paper pick
(turn off the printer, press and hold mechanism. See “Paper
buttons 3 and 6, then turn on the printer). pick mechanism
2. Perform the Align Motor Test. See “Motor assembly removal” on
tests” on page 3-10. page 4-145.
Can you hear the align motor run?
Previous
Step Questions / actions Yes No
3 Turn the printer off, and then remove the Replace the fuser. See Go to step 4.
fuser. See “Fuser removal” on page 4-118. “Fuser removal” on
page 4-118.
Next
Go Back
4 Verify the paper is loaded properly in the Go to step 5. Load paper correctly.
paper tray or manual feed slot.
Is the paper properly loaded?
5 1. Replace the fuser. See “Fuser removal” Problem resolved Replace the original fuser,
on page 4-118. and go to step 6.
Note: Do not reset the fuser count until
the problem is resolved.
2. Turn the printer off.
3. POR the printer.
Did the error clear?
6 Remove the rear frame cover. See “Rear Replace the fuser DC Go to step 7
frame cover removal” on page 4-47. cable. See “Fuser DC
cable removal” on
Check the fuser DC cable in the connector page 4-121.
JFUSER1 for proper connection to the system
board, for pinch points, and for any other
damage to the cable or the connector.
Is the cable damaged?
Pin 8 Pin 6
(ground)
Does the meter read +5 V dc?
Previous
Step Questions / actions Yes No
Go Back
9 1. Replace the fuser. See “Fuser removal” Problem resolved Replace the system board.
on page 4-118. See “System board
2. Bring the printer up in Diagnostics Menu removal” on page 4-163.
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
3. Navigate to SENSOR TESTS > Dynamic
Sensors > Fuser Exit.
4. Open the front access door and the top
access cover.
1 Open the front access door. Turn the Go to step 2. Replace the transport belt.
transport belt gear clockwise. See “Transfer module Next
removal” on page 4-179.
Go Back
2 Turn the printer off, and then remove the Replace the fuser. See Go to step 3.
fuser. See “Fuser removal” on page 4-118. “Fuser removal” on
page 4-118.
3 Verify the paper is loaded properly in the Go to step 4. Load paper correctly.
paper tray or manual feed slot.
Is the paper properly loaded?
4 Replace the fuser. See “Fuser removal” on Problem resolved. Remove the new fuser, and
page 4-118. POR the printer. go to step 5.
Did the error clear?
5 1. Remove the rear frame cover. See “Rear Replace the fuser DC Go to step 6.
frame cover removal” on page 4-47. cable. See “Fuser DC
2. Check the fuser DC cable in the connector cable removal” on
JFUSER1 for proper connection to the page 4-121.
system board, for pinch points, and for
any other damage to the cable or the
connector.
Is the cable damaged?
Previous
Step Questions / actions Yes No
Go Back
Pin 8 Pin 6
(ground)
3. Does the meter read +5 V dc?
Previous
Step Questions / actions Yes No
8 1. Replace the fuser. See “Fuser removal” Problem resolved. Replace the system board.
on page 4-118. See “System board
2. Bring the printer up in Diagnostics Menu removal” on page 4-163.
(turn off the printer, press and hold
Next
buttons 3 and 6, then turn on the printer).
3. Navigate to SENSOR TESTS > Dynamic
Sensors > Fuser Exit.
4. Open the front access door and top Go Back
access cover.
5. Activate the fuser exit sensor.
1 Check the tray for any damage. Replace the tray. Go to step 2.
Is the tray damaged?
2 Check the MPF duplex gear for any damage. Replace the MPF duplex Go to step 3.
gear. See “Multipurpose
Is the MPF Duplex gear damaged? feeder (MPF)/duplex gear
and housing removal” on
page 4-131.
4 Measure the continuity across all of the fuses Replace the system board. Go to step 5.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
Previous
Step Questions / actions Yes No
5 • Check the front access cover for any Replace the front access Go to step 6.
damage. cover. See “Front access
• Make sure the front access cover can cover assembly removal”
close correctly. on page 4-29.
Next
• Check the front access cover if its
securely fastened to its hinge.
Is the front access cover damaged?
Go Back
6 1. Check the duplex reference edge guide Replace the duplex Go to step 7.
assembly for damages. reference edge guide
2. Check the gears, rollers and belt for assembly. See “Duplex
damage and contamination. Manually turn reference edge guide
the gears. assembly removal” on
Is the duplex reference edge guide assembly page 4-95.
damaged?
7 1. Check the front door for any damage. Replace the front door Go to step 8.
2. Check the paper path for any obstruction. assembly. See “Front
3. Check roller gears for any damage. door assembly removal”
on page 4-108.
Is the front door assembly damaged?
8 1. Remove the right cover. See “Right Replace the MPF duplex Go to “920.06—Input
cover removal” on page 4-51. motor assembly. See sensor service check” on
2. Check the MPF duplex motor assembly “Multipurpose feeder page 2-101.
for proper installation. (MPF)/duplex motor
3. Check the connectors. Reseat the assembly removal” on
connector on the motor side and JDX1 on page 4-133.
the system board.
Is the MPF duplex motor assembly damage?
Previous
Step Questions / actions Yes No
3 Carefully lift the printer off the option, and lay Replace the option cable. Go to step 4.
the printer on its back. Check the option See “Option cable
connector for damage. removal” on page 4-143.
Next
Go Back
4 Replace the complete tray 2 option. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
3 1. Bring the printer up in Diagnostics Menu Go to step 4. Replace the paper pick
(turn off the printer, press and hold mechanism. See “Paper
buttons 3 and 6, then turn on the printer). pick mechanism
2. Navigate to MOTOR TESTS > Align assembly removal” on
Motor Test. page 4-145.
Can you hear the align motor run?
Previous
Step Questions / actions Yes No
4 Is tray 2 a high-capacity input tray (2,000- Replace the HCIT top Replace the entire tray 2
sheet feeder)? plate. See “Top plate option.
assembly removal” on
page 4-214.
Next
1 Has the paper been fed from an input option Go to step 5. Go to step 2.
before?
Previous
Step Questions / actions Yes No
4 Carefully lift the printer off the option, and lay Replace the option cable. Go to step 5.
the printer on its back. See “Option cable
removal” on page 4-143.
Check the option connector for damage.
Next
Go Back
6 Replace the tray 2 option. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
7 Replace the HCIT top plate. See “Top plate Problem resolved. Replace the system board.
assembly removal” on page 4-214. See “System board
removal” on page 4-163.
1 1. Bring the printer up in Diagnostics Menu Problem resolved. Replace the complete
(turn off the printer, press and hold tray 2 option.
buttons 3 and 6, then turn on the printer).
2. Navigate to PRINT TESTS > select a tray
below tray 2 > Single.
Did the page print correctly?
3 Carefully lift the printer off the option, and lay Replace the option cable. Go to step 4.
the printer on its back. Check the option See “Option cable
connector for damage. removal” on page 4-143.
4 Is tray 2 an high-capacity input tray (HCIT)? Replace the HCIT top Replace the complete
plate. See “Top plate tray 2 option.
assembly removal” on
page 4-214.
242.21, 243.21, 244.21. 245.21, 242.30, 243.30, 244.30, 245.30—Paper Jam service Previous
check
2 1. Remove printer from the option tray. • For 550 input option, Go to step 3.
2. Inspect the autonnect cables on the option replace the 550 input
tray. option.
Is the autoconnect connector damaged? • For HCIT input option,
replace the HCIT top
plate assembly. See
“Top plate assembly
removal” on
page 4-214.
3 • For 550 input option, install a new 550 • For 550 input option, Go to step 4.
input option. replace the 550 input
• For HCIT input option, install a new top option.
plate assembly. See “Top plate • For HCIT input option,
assembly removal” on page 4-214 replace the HCIT top
Does this fix the problem? plate assembly. See
“Top plate assembly
removal” on
page 4-214.
4 For HCIT input option, replace the HCIT Problem resolved Replace the system board.
controller board assembly. See “HCIT See “System board
controller board assembly removal” on removal” on page 4-163.
page 4-207.
Does this fix the problem?
Previous
Step Questions / actions Yes No
2 Is the tray 3 a high-capacity input tray (2,000- Replace the HCIT top Replace the complete
sheet feeder)? plate. See “Top plate tray 3 option.
assembly removal” on
page 4-214.
Next
3 1. Bring the printer up in Diagnostics Menu Replace the complete Replace the paper pick
(turn off the printer, press and hold tray 2 option. mechanism. See “Paper
buttons 3 and 6, then turn on the printer). pick mechanism
2. Navigate to MOTOR TESTS > Align assembly removal” on
Motor Test. page 4-145.
Can you hear the align motor run?
2 Is tray 2 a high-capacity input tray (2,000- Replace the HCIT elevator Replace the complete
sheet feeder)? up sensor. See “HCIT tray 2 option.
elevator motor with
sensor removal” on
page 4-208.
1 1. Remove the input option tray. Replace the input option Go to step 2.
• Remove tray 2 for 242.32 errors. tray. Next
• Remove tray 3 for 243.32 errors. If the input option is an
• Remove tray 4 for 244.32 errors. HCIT, replace the HCIT top
plate assembly. See “Top
• Remove tray 5 for 245.32 errors. plate assembly removal”
Go Back
2. Check for obstruction on the paper path. on page 4-214.
3. Check the input option pass-through
sensor flag for any damage.
4. Remove the input option from the printer
and check the autoconnect connector for
damage.
Is the input option damaged?
2 1. Bring the printer up in Diagnostics Menu Replace the system board. Go to step 3.
(turn off the printer, press and hold See “System board
buttons 3 and 6, then turn on the printer). removal” on page 4-163.
2. Navigate to Print Test > Tray # > Single.
Does the printer print correctly?
3 • For 550 input option, try installing an new • For 550 input option, Go to step 4.
550 input option. replace the 550 input
• For HCIT input option, install a new top option assembly.
plate assembly to verify the problem. • For HCIT input option,
Does this fix the problem? replace the top plate
assembly. See “Top
plate assembly
removal” on
page 4-214.
4 1. Turn the printer off. Replace the option cable. Replace the system board.
2. Remove the rear frame cover. See “Rear See “Option cable See “System board
frame cover removal” on page 4-47. removal” on page 4-143. removal” on page 4-163.
3. Remove the right cover. See “Right
cover removal” on page 4-51.
4. Check the connector JOPT1 for proper
connection to the system board, the cable
for pinch points, and the cable or
connector for any other damage.
5. Reseat JOPT1.
6. Carefully lift the printer off the options, and
lay the printer on its back.
7. 7.Check the option connector for damage
is the option cable connector damage?
Previous
Step Questions / actions Yes No
3 Carefully lift the printer off the option, and lay Replace the option cable. Go to step 4.
the printer on its back. See “Option cable
removal” on page 4-143.
Check the option connector for damage.
4 Replace the complete tray 3 option. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
Previous
Step Questions / actions Yes No
2 Is tray 3 a high-capacity input option (2,000- Replace the HCIT top Replace the complete
sheet feeder)? plate. See “Top plate tray 3 option.
assembly removal” on
page 4-214.
Next
Previous
Step Questions / actions Yes No
4 1. Carefully lift the printer off the option, and Replace the option cable. Go to step 5.
lay the printer on its back. See “Option cable
2. Check the option connector for damage. removal” on page 4-143.
Next
Go Back
6 Replace the complete tray 3 option. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
7 Replace the high-capacity input tray (2,000- Problem resolved. Replace the system board.
sheet feeder)? See “System board
removal” on page 4-163.
1 1. Bring the printer up in Diagnostics Menu Problem resolved Replace the complete
(turn off the printer, press and hold tray 3 option.
buttons 3 and 6, then turn on the printer).
2. Navigate to PRINT TESTS > select a tray
below tray 3 > Single.
Did the page feed correctly?
3 Carefully lift the printer off the option, and lay Replace the option cable. Go to step 4.
the printer on its back. Check the option See “Option cable
connector for damage. removal” on page 4-143.
4 Is tray 3 an high-capacity input tray (HCIT)? Replace the HCIT top Replace the complete
plate. See “Top plate tray 3 option.
assembly removal” on
page 4-214.
2 Is tray 2 a high-capacity input tray (2,000- Replace the HCIT top Replace the complete
sheet feeder)? plate. See “Top plate tray 4 option.
assembly removal” on
page 4-214.
1 1. Bring the printer up in Diagnostics Menu Problem resolved. Replace the complete
(turn off the printer, press and hold tray 4 option.
buttons 3 and 6, then turn on the printer).
2. Navigate to PRINT TESTS > select a tray
below tray 4 > Single.
Did the page feed correctly?
2 Is tray 3 a high-capacity input tray (2,000- Replace the HCIT elevator- Replace the complete
sheet feeder)? up sensor. See “HCIT tray 3 option.
elevator motor with
sensor removal” on
page 4-208.
3 1. Carefully lift the printer off the options, and Replace the option cable. Go to step 4.
lay the printer on its back. See “Option cable
2. Check the option connector for damage. removal” on page 4-143.
4 Replace the complete tray 4 option. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
2 Is tray 4 a high-capacity input option (2,000- Replace the HCIT top Replace the complete
sheet feeder)? plate. See “Top plate tray 4 option.
assembly removal” on
page 4-214.
Previous
Step Questions / actions Yes No
4 1. Carefully lift the printer off the option, and Replace the option cable. Go to step 5.
lay the printer on its back. See “Option cable
2. Check the option connector for damage. removal” on page 4-143.
Next
Go Back
6 Replace the complete tray 4 option. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
7 Replace the high-capacity input tray (2,000- Problem resolved. Replace the system board.
sheet feeder)? See “System board
removal” on page 4-163.
1 1. Bring the printer up in Diagnostics Menu Problem resolved Replace the complete
(turn off the printer, press and hold tray 4 option.
buttons 3 and 6, then turn on the printer).
2. Navigate to PRINT TESTS > select a tray
below tray 4 > Single.
Did the page feed correctly?
Previous
Step Questions / actions Yes No
3 Carefully lift the printer off the option, and lay Replace the option cable. Go to step 4.
the printer on its back. See “Option cable
removal” on page 4-143.
Check the option connector for damage
4 Is tray 4 an high-capacity input tray (HCIT)? Replace the HCIT top Replace the complete
plate. See “Top plate tray 4 option.
assembly removal” on
page 4-214
Previous
Step Questions / actions Yes No
2 Is tray 5 a high-capacity input tray (2,000- Replace the HCIT top Replace the complete
sheet feeder)? plate. See “Top plate tray 5 option.
assembly removal” on
page 4-214.
Next
1 1. Bring the printer up in Diagnostics Menu Problem resolved. Replace the complete
(turn off the printer, press and hold tray 4 option.
buttons 3 and 6, then turn on the printer).
2. Navigate to PRINT TESTS > select a tray
below tray 4 > Single.
Did the page feed correctly?
2 Is tray 4 a high-capacity input tray (2,000- Replace the HCIT elevator- Replace the complete
sheet feeder)? up sensor. See “HCIT tray 4 option.
elevator motor with
sensor removal” on
page 4-208.
3 Carefully lift the printer off the options, and lay Replace the option cable. Go to step 4.
the printer on its back. See “Option cable
removal” on page 4-143.
Check the option connector for damage.
4 Replace the complete tray 5 option. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
2 Is tray 5 a high-capacity input option (2,000- Replace the HCIT top Replace the complete
sheet feeder)? plate. See “Top plate tray 5 option.
assembly removal” on
page 4-214.
2 1. Bring the printer up in Diagnostics Menu Replace the option cable. Go to step 3.
(turn off the printer, press and hold See “Option cable
buttons 3 and 6, then turn on the printer). removal” on page 4-143.
2. Navigate to PRINT TESTS > Tray 5 >
Single.
Did the page feed correctly?
Previous
Step Questions / actions Yes No
4 Carefully lift the printer off the option, and lay Replace the option cable. Go to step 5.
the printer on its back. See “Option cable
removal” on page 4-143.
Check the option connector for damage.
Next
Go Back
6 Replace the complete tray 5 option. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
7 Replace the HCIT top plate. See “Top plate Problem resolved. Replace the system board.
assembly removal” on page 4-214. See “System board
removal” on page 4-163.
1 1. Bring the printer up in Diagnostic menu Problem resolved. Replace the complete tray
(turn off the printer, press and hold 5 option.
buttons 3 and 6, then turn on the printer).
2. Navigate to PRINT TESTS > select a tray
below tray 5 > Single.
Did the page feed correctly?
3 Carefully lift the printer off the options, and lay Replace the option cable. Go to step 4.
the printer on its back. See “Option cable
removal” on page 4-143.
Check the option connector for damage.
4 Replace the complete tray 5 option. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
2 Is tray 5 a high-capacity input tray (2,000- Replace the HCIT elevator- Replace the complete
sheet feeder)? up sensor. See “Top plate tray 5 option.
assembly removal” on
page 4-214.
Before starting the service checks in this section, you will need to retrieve certain information. This will aid your
next level of support in diagnosing the problem before replacing the controller board.
Warning: Do not replace the controller board unless directed by your next level of support.
1. Collect the history information and firmware logs (Fwdebug and logs.tar.gz) from the SE menu.
2. Collect the settings from the menu settings page.
3. Collect information from the user.
Note: Not all of the items can be retrieved from the printer you are working on.
B. Collecting the firmware logs (Fwdebug and logs.tar.gz) from the SE menu
Notes:
Note: The menu settings page is different for each printer. For more information see the User’s Guide. Your
next level of support will tell you which page they want to see.
Go Back
Copying the menu settings page from the Embedded Web Server (EWS)
1. From the home screen, navigate to Reports > Menu Settings Page.
2. Print the menu settings page, and then use Scan to E-mail to send it to your next level of support.
Note: Make sure to perform the “Steps before starting the 9yy service checks” on page 2-94 first before
proceeding.
There are different types of 900.xx errors that can occur. There may be a communication problem (Bad cable,
network connection, and so on) software issue, or a hardware problem with the controller board, or ISP (Internal
solutions port). The communication and software aspects should be checked first. Determine if the problem is
constant or intermittent. Use the troubleshooting procedure below to isolate the issue. Take any notes as
instructed. You will need that information in the event you need to contact your next level support.
Note: Before troubleshooting, determine the operating system used when the error occurred. If possible
determine whether a PostScript or PCL file was sent to the device when the error occurred. Ask the customer
which Lexmark Solutions applications are installed on the device.
Previous
Step Action and questions Yes No
2 • Write down the exact 900.xx error code displayed Go to step 3. Go to step 6.
on the device.
• Turn the device off.
• Clear the print queues. Next
• Disconnect all communication cables, and remove
all memory options.
• Remove all ISP and modem cards.
Go Back
• Restart the device into diagnostic mode.
3 Check all the cables connected to the RIP board for Go to step 5. Go to step 4.
proper connectivity.
Are the cables properly connected?
4 Properly connect the cables to the RIP board. Restart Go to step 5. Go to step 6.
the device into diagnostic mode.
Does the 900.xx error reoccur during startup?
5 Replace the RIP board, and restart the device. Problem Go to step 31.
resolved.
Does this fix the problem?
Note: If an error, different from the original 900.xx, is
displayed, consult the service check for that error.
8 Restart the printer to operating mode. Send a different Go to step 9. Go to step 10.
print job to the device.
Does the 900.xx error reoccur?
9 Upgrade the firmware. Contact your next level of Go to step 31. Go to step 10.
support for the correct firmware level to use.
Restart the printer to operating mode. Send the printer
a print job.
Does the 900.xx error reoccur?
Previous
Step Action and questions Yes No
14 Reinstall the memory, and send a print job to the Go to step 15. Go to step 16.
device.
Go Back
Does the 900.xx error reoccur?
17 Reinstall the modem. Restart the device. Go to step 18. Go to step 20.
Does the 900.xx error reoccur?
18 Upgrade the firmware. Contact your next level of Go to step 19. Problem
support for the correct firmware level to use. resolved.
Restart the printer to operating mode. Send the printer
a print job.
Does the 900.xx error reoccur?
21 Are there any ISP (internal solutions port) options Go to step 22. Problem
installed? resolved.
22 Reinstall the first ISP option. Restart the device. Go to step 24. Go to step 23.
Does the 900.xx error reoccur?
24 Upgrade the firmware. Contact your next level of Go to step 25. Problem
support for the correct firmware level to use. resolved.
Restart the printer to operating mode.
Does the 900.xx error reoccur?
25 Replace the faulty ISP option. Restart the device. Go to step 31. Go to step 26.
Does the 900.xx error reoccur?
27 Install the next ISP option. Restart the device. Go to step 29. Go to step 28.
Does the 900.xx error reoccur?
Previous
Step Action and questions Yes No
29 Upgrade the firmware. Contact your next level of Go to step 30. Go to step 26.
support for the correct firmware level to use.
Restart the printer to operating mode.
Does the 900.xx error reoccur? Next
30 Replace the faulty ISP option. Restart the device. Go to step 31. Go to step 26.
Does the 900.xx error reoccur? Go Back
31 Contact your next level of support. You will need the following information for them:
• Exact 900.xx error digits and complete error message
• Printed menu settings page
• Printed network settings page
• Device error log
• A sample print file if error appears to be isolated to a single file
• File/Application used if error is related to specific print file
• Device Operating System
• Driver used (PCL/PS)
• Frequency of the occurrence of the error
2 Replace the transfer module. Problem resolved. Replace the system board.
See “System board
Does the error clear? removal” on page 4-163.
Previous
Step Questions / actions Yes No
3 Install a new transfer module to verify if the Go to step 4. Replace the transfer
old transfer module is defective. module. See “Transfer Go Back
module removal” on
Does the problem persist? page 4-179.
4 Connect a new transport cable from outside 1. Return the old transfer Replace the transport
of the machine. module and transport cable. See “Transport
cable. cable removal” on
Does the problem persist? page 4-181.
2. Go to step 5.
5 Connect a new printhead assembly from Replace the system board. Replace the printhead
outside of the printer and verify the printhead. See “System board assembly. See “Printhead
See “Printhead verification” on page 3-39. removal” on page 4-163. removal, installation, and
adjustment” on
Does the problem persist? page 4-153
1 Open the front access door. Reseat the Problem resolved. Go to step 2.
transport cable.
2 Turn the printer off, and then remove the rear Problem resolved. Go to step 3.
frame cover. See “Rear frame cover
removal” on page 4-47.
Reseat the transport cable in connector
JTPS1.
Does the error clear?
3 Check the transport cable in connector JTPS1 Replace the transport Go to step 4.
for pinch points and for any other damage to cable. See “Transport
the cable or connector. cable removal” on
page 4-181.
Is the cable damaged?
Previous
Step Questions / actions Yes No
920.04—POST (power-on self test) fuser motor not connected error service check
1 Turn the printer off, and then remove the rear Problem resolved. Go to step 2.
frame cover. See “Rear frame cover
removal” on page 4-47.
Reseat the cables in connectors JCARTP1)
and JCARTS1.
Does the error clear?
2 Check the cartridge motor 1/fuser cable in Replace the cartridge Go to step 3.
connector JCARTP1 and JCARTS1 for pinch motor1/fuser cable. See
points and the cables or connectors for any “Cartridge motor 1/fuser
other damage. cable removal” on
page 4-74.
Are the cables damaged?
3 Remove the right cover.See “Right cover Replace the cartridge Go to step 4.
removal” on page 4-51. Check the cartridge motor 1/fuser motor cable.
motor 1/fuser motor cable (A) for proper See “Cartridge motor 1/
connection to the EP drive assembly, pinch fuser cable removal” on
points for the cable, and damage to the cable page 4-74.
or connector.
Previous
Step Questions / actions Yes No
5 Connect a new cartridge motor1/fuser motor Replace the cartridge Replace the system board.
cable to the old EP drive assembly without motor 1/fuser motor cable. See “System board
installing it into the machine. See “Cartridge motor 1/ removal” on page 4-163.
fuser cable removal” on
Did the error clear? page 4-74. Next
920.05—POST (power-on self test) printhead motor not connected error service check Go Back
2 Check the cables in connector JMIRR1 for Replace the printhead. See Go to step 3.
pinch points and any other damage to the “Printhead removal,
cables or connectors. installation, and
adjustment” on
Is the cable damaged? page 4-153.
3 Measure the continuity across all of the fuses Replace the system board. Go to step 4.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
4 1. Perform the printhead verification to check Replace the printhead. See Replace the system board.
whether the new printhead solves the “Printhead removal, See “System board
problem. See “Printhead verification” installation, and removal” on page 4-163.
on page 3-39. adjustment” on
2. Navigate to PRINTHEAD TESTS > Mirror page 4-153.
Motor Test.
Did the mirror motor pass the test?
1 Is the input sensor flag damaged? Replace the paper pick Go to step 2.
mechanism. See “Paper
pick mechanism
assembly removal” on
page 4-145.
Previous
Step Questions / actions Yes No
3 1. Disconnect the cable in connector Replace the paper pick Replace the system board.
JTRAY1. mechanism. See “Paper See “System board
2. Connect the cable from the new paper pick mechanism removal” on page 4-163.
pick assembly in connector JTRAY1. assembly removal” on
page 4-145. Next
3. Bring the printer up in Diagnostics Menu
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
4. Navigate to SENSOR TESTS > Dynamic Go Back
Sensors > Input.
5. Activate the input sensor.
Did the input sensor change from Open to
Closed?
1 Turn the printer off, and then remove the rear Problem resolved. Go to step 2.
frame cover. See “Rear frame cover
removal” on page 4-47.
Reseat the cable in connector JTRAY1.
Does the error clear?
2 Check the cable in connector JTRAY1 for Replace the paper pick Go to step 3.
pinch points and the cable or connector for mechanism. See “Paper
any other damage. pick mechanism
assembly removal” on
Is the cable damaged? page 4-145.
3 POR the printer. Place a voltmeter between Go to step 4. Replace the system board.
JTRAY1(pin 4), and ground (pin 1). See “System board
removal” on page 4-163.
Does the meter read 5 V dc?
4 1. Disconnect the cable in JTRAY1. Replace the paper pick Replace the system board.
2. Connect the cable from the new paper mechanism. See “Paper See “System board
pick mechanism. pick mechanism removal” on page 4-163.
3. Bring the printer up in Diagnostic menu assembly removal” on
(turn off the printer, press and hold page 4-145.
buttons 3 and 6, then turn on the printer).
4. Navigate to SENSOR TESTS > Dynamic
Sensors > Narrow Media.
5. Activate the narrow media sensor.
1 Verify the paper is loaded properly in the Go to step 2. Load paper correctly.
paper tray or manual feed slot. Next
Is the paper properly loaded?
2 1. Turn the printer off. Problem resolved. Remove the new fuser, and Go Back
2. Install the new fuser. See “Fuser go to step 3.
Note: Complete the fuser
removal” on page 4-118 installation: reset fuser
Note: Do not reset fuser count or run count and run motor
motor calibration yet. calibration. See “Fuser
3. POR the printer. removal” on page 4-118.
Did the error clear?
3 Remove the rear frame cover. See “Rear Replace the fuser DC Go to step 4.
frame cover removal” on page 4-47. cable. See “Fuser DC
cable removal” on
Check the fuser DC cable in the connector page 4-121.
JFUSER1 for proper connection to the system
board, for pinch points, and for any other
damage to the cable or the connector.
Is the cable damaged?
Previous
Step Questions / actions Yes No
6 1. Replace the fuse without resetting the Replace fuser and reset Replace the system board.
fuser count. the fuser count. See See “System board
2. Bring the printer up in Diagnostics Menu “Fuser removal” on removal” on page 4-163.
(turn off the printer, press and hold page 4-118.
Next
buttons 3 and 6, then turn on the printer).
3. Navigate to SENSOR TESTS > Dynamic
Sensors > Fuser Exit.
4. Open the front door, and then the top Go Back
access cover.
5. Activate the fuser exit sensor.
920.09—POST (power-on self test)—Four toner sensors not connected error service
check
2 Check the HVPS cable in connector JHVPS1 Replace the HVPS cable. Go to step 3.
for pinch points and any other damage to the See “High-voltage power
cable or connector. supply (HVPS) cable
removal” on page 4-125.
Is the cable damaged?
Previous
Step Questions / actions Yes No
3 1. Remove the left cover. See “Left cover Go to step 4. Problem resolved.
removal” on page 4-31.
2. Reseat and check all the toner level
sensor cables (A) connected to the rear of
Next
the HVPS for damages and if they are
installed correctly.
Go Back
4 Connect four new toner level sensors outside Remove the four new toner Replace the failing toner
the machine and perform a POR. level sensors and go to level sensors. See “Toner
step 5. level sensor removal” on
Note: Keep track of which sensors change page 4-171.
the error code to reduce the number of failing
sensors. Keep the old sensor which does not
reduce the failing number, leaving three new
sensors and no error reported.
Does the problem persist?
6 1. Install the old HVPS back to the machine. Replace the system board. Problem resolved.
2. Replace the HVPS cable. See “High- See “System board
voltage power supply (HVPS) cable removal” on page 4-163.
removal” on page 4-125
Does the problem persist?
1 Turn the printer off, and then remove the rear Problem resolved. Go to step 2.
frame cover. See “Rear frame cover
removal” on page 4-47.
Reseat the cable in connector JHVPS1.
Does the error clear?
2 Check the HVPS cable in connector JHVPS1 Replace the HVPS cable. Go to step 3.
for pinch points and any other damage to the See “High-voltage power
cable or connector. supply (HVPS) cable
removal” on page 4-125.
Is the cable damaged?
Previous
Step Questions / actions Yes No
3 Remove the left cover. See “Left cover Go to step 4. Problem resolved.
removal” on page 4-31.
Reseat then and check all the toner level
sensor cables (A) connected to the rear of the Next
HVPS for damages and if they are installed
correctly.
Go Back
4 Connect four new toner level sensors outside Go to step 5. Replace the failing toner
the machine and perform a POR. level sensors. See “Toner
level sensor removal” on
Note: Keep track of which sensors change page 4-171.
the error code to reduce the number of failing
sensors. Keep the old sensor which does not
reduce the failing number, leaving three new
sensors and no error reported.
Does the problem persist?
6 1. Install the old HVPS back to the machine. Replace the system board. Problem resolved.
2. Replace the HVPS cable. See “High- See “System board
voltage power supply (HVPS) cable removal” on page 4-163.
removal” on page 4-125
Does the problem persist?
920.11—POST (power-on self test)—Two toner sensors not connected error service
check
1 Turn the printer off, and then remove the rear Problem resolved. Go to step 2.
frame cover. See “Rear frame cover
removal” on page 4-47.
Reseat the cable in connector JHVPS1.
Does the error clear?
2 Check the HVPS cable in connector JHVPS1 Replace the HVPS cable. Go to step 3.
for pinch points and any other damage to the See “High-voltage power
cable or connector. supply (HVPS) cable
removal” on page 4-125.
Is the cable damaged?
Previous
Step Questions / actions Yes No
3 Remove the left cover. See “Left cover Go to step 4. Problem resolved.
removal” on page 4-31.
Reseat then and check all the toner level
sensor cables (A) connected to the rear of the Next
HVPS for damages and if they are installed
correctly.
Go Back
4 Connect four new toner level sensors outside Go to step 5. Replace the failing toner
the machine and perform a POR. level sensors. See “Toner
level sensor removal” on
Note: Keep track of which sensors change page 4-171.
the error code to reduce the number of failing
sensors. Keep the old sensor which does not
reduce the failing number, leaving three new
sensors and no error reported.
Does the problem persist?
6 1. Install the old HVPS back to the machine. Replace the system board. Problem resolved.
2. Replace the HVPS cable. See “High- See “System board
voltage power supply (HVPS) cable removal” on page 4-163.
removal” on page 4-125
Does the problem persist?
920.12—POST (power-on self test)—One toner sensor not connected error service Previous
check
2 Check the HVPS cable in connector JHVPS1 Replace the HVPS cable. Go to step 3.
for pinch points and any other damage to the See “High-voltage power
cable or connector. supply (HVPS) cable
removal” on page 4-125.
Is the cable damaged?
3 Remove the left cover. See “Left cover Go to step 4. Problem resolved.
removal” on page 4-31.
Reseat then and check all the toner level
sensor cables (A) connected to the rear of the
HVPS for damages and if they are installed
correctly.
4 Connect four new toner level sensors outside Go to step 5. Replace the failing toner
the machine and perform a POR. level sensor. See “Toner
level sensor removal” on
Note: Keep track of which sensors change page 4-171.
the error code to reduce the number of failing
sensors. Keep the old sensor which does not
reduce the failing number, leaving three new
sensors and no error reported.
Does the problem persist?
6 1. Install the old HVPS back to the machine. Replace the system board. Problem resolved.
2. Replace the HVPS cable. See “High- See “System board
voltage power supply (HVPS) cable removal” on page 4-163.
removal” on page 4-125
Does the problem persist?
920.13—POST (power-on self test) cartridge motor 1 not connected error service Previous
check
3 Remove the right cover. Check the cartridge Replace the cartridge Go to step 4.
motor 1/fuser motor cable (A) for proper motor 1/fuser motor cable.
connection to the EP drive assembly, pinch See “Cartridge motor 1/
points for the cable, or any other damage to fuser cable removal” on
the cable or connector. page 4-74.
4 Measure the continuity across all of the fuses Replace the system board. Go to step 5.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
6 Plug in a new EP drive assembly cartridge Replace the system board. Replace cartridge motor 1/
motor 1 with a new cable from outside the See “System board fuser cable. See
machine. removal” on page 4-163. “Cartridge motor 1/fuser
cable removal” on
Does the problem persist? page 4-74
920.14—POST (power-on self test)—Cartridge motor 2 not connected error service Previous
check
2 Check the cable in connector JCARTP2 and Replace the cartridge Go to step 3.
JCARTS2 for pinch points and any other motor 2/3 cable. See
damage to the cable or connector. “Cartridge motor 2/3
cable removal” on
Are the cables damaged? page 4-77.
3 Remove the right cover. See “Right cover Replace the cartridge Go to step 4.
removal” on page 4-51. Check the cartridge motor 2/3 cable. See
motor 2/3 cable for the proper connection to “Cartridge motor 2/3
the EP drive assembly, pinch point for the cable removal” on
cable, or damage to the cable or connectors. page 4-77.
4 Measure the continuity across all of the fuses Replace the system board. Go to step 5.
on the system board. See “System board
removal” on page 4-165.
Are any of the fuses blown?
5 Connect a new cartridge motor 1/fuser cable Replace the cartridge Go to step 6.
from the outside of the machine. motor 1/fuser cable. See
“Cartridge motor 1/fuser
Did the error clear? cable removal” on
page 4-74.
6 Connect the old cartridge motor 1/fuser motor Replace the EP drive Replace system board.
cable to a new EP drive assembly outside of assembly. See See “System board
the machine. “Electrophotographic removal” on page 4-163.
(EP) drive assembly
Did the error clear? removal” on page 4-98
920.15, 920.20—POST (power-on self test)—Bad transfer module NVRAM data error Previous
service check
3 Connect a new transport cable from outside Return the old transport Return the old transport
of the machine. belt module and old belt module and replace
transport cable then the transport cable. See
Does the problem persist? replace the system board. “Transport cable
See “System board removal” on page 4-181.
removal” on page 4-163.
920.16—POST (power-on self test)—Bad printhead NVRAM data error service check
1 Turn the printer off, and then remove the rear Problem resolved. Go to step 2.
frame cover. See “Rear frame cover
removal” on page 4-47.
Reseat the large printhead cable in connector
JPH1.
Does the error clear?
2 Check the cable in connector JPH1 for pinch Replace the printhead. See Go to step 3.
points and any other damage to the cable or “Printhead removal,
connector. installation, and
adjustment” on
Is the cable damaged? page 4-153.
3 Perform the printhead verification to check Replace the printhead. See Replace the system board.
whether the printhead replacement fixes the “Printhead removal, See “System board
problem. See “Printhead verification” on installation, and removal” on page 4-163.
page 3-39. adjustment” on
page 4-153.
POR the printer.
Did the error clear?
920.17—POST (power-on self test)—Output bin cable not connected error service Previous
check
2 Check the bin full sensor cable in connector Replace the bin full sensor Go to step 3.
JBIN1 for pinch points and any other damage with cable. See “Bin full
to the cable or connector. sensor removal” on
page 4-65.
Is the cable damaged?
3 1. Disconnect the cable in the JBIN1 Replace the bin full sensor Replace the system board.
connector. and cable. See “Bin full See “System board
2. Connect the new bin full flag cable in the sensor removal” on removal” on page 4-163.
JBIN connector. page 4-65.
3. Bring the printer up in Diagnostic menu
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
4. Navigate to SENSOR TESTS > Other
Sensors > Bin Full Test.
5. Activate the new bin full sensor by placing
a sheet of paper in the sensor.
920.18—POST (power-on self test)—Cartridge motor 3 not connected error service Previous
check
2 Measure the continuity across all of the fuses Replace the system board. Go to step 3.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
3 1. Remove the right cover. See “Right Replace the cartridge Go to step 4.
cover removal” on page 4-51. motor 2/3 cable. See
2. Check the connections on the cartridge “Cartridge motor 2/3
motor 2/3 cables and reseat the cables. cable removal” on
3. Check the routing on the cables for pinch page 4-77.
points and any other damage to the
cables or the connectors.
Is the cable free from damage?
4 Connect a new Cartridge motor 2/3 cable Replace the cartridge Go to step 5.
from outside of the machine, then POR the motor 2/3 cable. See
printer. “Cartridge motor 2/3
cable removal” on
Note: Verify first if the cable is working page 4-77.
properly by testing connections of the cable
on motor 2 and 3 to the JCARTP2 and
JCARTS2 connectors. Route the cables
properly only when you have verified that the
cables are working properly.
Did the error clear?
5 Connect a new EP drive assembly from the Return the old cartridge Return the old EP drive
outside of the machine. motor 2/3 cable and assembly and the old
replace the EP drive cartridge motor 2/3 cable,
assembly. See then replace the system
Note: Verify first if the EP drive assembly is “Electrophotographic board. See “System
working properly. Connect the cables on the (EP) drive assembly board removal” on
fuser motor, cartridge motor 1, 2, and 3 on the removal” on page 4-98 page 4-163.
new EP drive assembly. Route the cables
properly only when you have verified that the
cables are working properly.
Did the error clear?
1 Turn the printer off, and then remove the rear Problem resolved. Go to step 2.
frame cover. See “Rear frame cover
removal” on page 4-47.
Reseat the motor driver cable in connector
JDVR1.
Does the error clear?
Previous
Step Questions / actions Yes No
2 Measure the continuity across all of the fuses Replace the system board. Go to step 3.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
Next
3 1. Open the right cover. Problem resolved. Go to step 4.
2. Reseat the motor driver cable on the
motor driver side (A).
Go Back
3. Reseat all cables connected to the motor
driver card.
4 Note: Connect a new motor driver cable from Replace the motor driver Go to step 5.
outside of the machine.Make sure to verify cable See “Motor driver
first if the motor driver cable is working cable removal” on
properly by connecting one end to the motor page 4-130.
driver card, and the other end to the JDVR1
connector on the system board. Route the
cables properly only when you have verified
that the cable is working properly.
Did this clear the error?
5 Connect a new transport motor cable. Return the original part Go to step 6.
from the printer and
Did this clear the error? replace the transport motor
cable. See “Transport
motor cable removal” on
page 4-183.
6 Connect a new motor driver card. Return the original parts of Go to step 7.
the printer and replace the
Did this clear the error? motor driver card. See
“Motor driver card
removal” on page 4-129.
7 1. Connect a new EP drive assembly from Replace the EP drive Replace the system board.
outside of the machine. assembly and connect the See “System board
2. Transfer the motor driver card and cables original parts back to the removal” on page 4-163.
to the new EP drive assembly and machine. See
connect the cables. “Electrophotographic
Did this clear the error? (EP) drive assembly
removal” on page 4-98.
920.21—POST (power-on self test)—24 V power supply failure error service check Previous
2 1. Check if the front door assembly can close Replace the front door. See Go to step 3.
properly. “Front door assembly
2. Check the front door pivot for any removal” on page 4-108.
damage.
3. Check if the front door can close properly.
Is the front door damaged?
5 Check the input voltage switch on the back of Go to step 6. Set the switch for the
the low-voltage power supply (LVPS). Some proper voltage supported
power supplies do not have the switch. by your country.
Note: If your FRU does not have a switch,
proceed to step 6.
Is the voltage level (115/230) properly set?
7 Replace the LVPS. Replace the LVPS. See Replace the system board.
“Low-voltage power See “System board
Note: Verify first if the new LVPS is working supply (LVPS) removal” removal” on page 4-163.
properly before installing it inside the on page 4-127.
machine. Remove the old LVPS, and install
the new LVPS without installing the screws.
Connect the fuser and JLVPS1 connectors to
the new LVPS.
Did the error clear?
920.23—POST (power-on self test)—Duplex motor not connected error service check Previous
1 Turn the printer off, and then remove the rear Problem resolved. Go to step 2.
frame cover. See “Rear frame cover Next
removal” on page 4-47.
Reseat the cable in connector JDX1.
Does the error clear? Go Back
2 Measure the continuity across all of the fuses Replace the system board. Go to step 3.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
3 Remove the right cover. See “Right cover Replace the MPF/duplex Go to step 4.
removal” on page 4-51. Check the MPF/ motor cable. See
duplex motor cable in connector JDX1 for “Multipurpose feeder
pinch points and any other damage to the (MPF)/duplex motor
cable or connector. Check both ends of the cable removal” on
cable. page 4-136.
Note: Make sure to verify if
the new cable is working
properly first. Route the
cables properly only when
you have verified that the
cables are working
properly.
4 1. Replace the MPF/duplex motor assembly. Problem resolved. Replace the system board.
See“Multipurpose feeder (MPF)/duplex See “System board
motor assembly removal” on removal” on page 4-163.
page 4-133.
Note: Before replacing a motor, always
verify if the new part is working properly
by connecting it outside of the machine,
2. POR the printer and check if the error is
gone.
Did the error clear?
920.27, 920.28, 920.29—POST (power on self test) option tray error service check Previous
1 Is the specified option the 550-sheet tray? Replace the 550-sheet tray Go to step 2.
with a new 550-sheet tray Next
option.
2 Is the specified option the special media tray? Replace the special media Go to step 3.
tray with a new special tray Go Back
option.
3 Replace the MPF paper present sensor. See Problem resolved. Replace the system board.
“Multipurpose feeder (MPF) paper present See “System board
sensor” on page 4-137. removal” on page 4-163.
Note: Before replacing a part, always verify
by connecting the part outside of the
machine.
Did the error clear?
1 Turn the printer off, and then remove the rear Replace the fan. See Go to step 2.
frame cover. See “Rear frame cover “Cooling fan removal” on
removal” on page 4-47. page 4-93.
Check the cable in connector JFAN1 for
proper connection to the system board, for
pinch points, and for any other damage to the
cable or the connector.
Is the cable damaged?
2 Measure the continuity across all of the fuses Replace the system board. Go to step 3.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
Previous
Step Questions / actions Yes No
3 1. Disconnect the cable in connector JFAN1, Replace the cooling fan. Replace the system board.
and install a new fan. See “Cooling fan See “System board
2. Turn the multifunction printer off, and turn removal” on page 4-93. removal” on page 4-163.
the MFP on (perform a POR).
Next
Note: After installing the new fan, a print test
is required to verify operation. Print one page
every 30 seconds for 20 minutes to test the
highest fan speed. Do not test unless the fan Go Back
is installed in the machine.
Did the error clear?
1 Turn the printer off, and remove the rear Problem resolved. Go to step 2.
frame cover. See “Rear frame cover
removal” on page 4-47.
Check the cable in connector JBLW1 for
proper connection to the system board, for
pinch points, and any other damage to the
cable or connector, and reseat the cable.
Did the error clear?
2 Measure the continuity across all of the fuses Replace the system board. Go to step 3.
on the system board. See “System board
removal” on page 4-163.
Are any of the fuses blown?
3 1. Replace the cartridge cooling fan. See Problem resolved. Replace the system board.
“Cartridge cooling fan removal” on See “System board
page 4-66. removal” on page 4-163.
2. Turn the multifunction printer off, and turn
the MFP on (perform a POR).
Note: After installing the new fan, a print test
is required to verify operation. Print one page
every 30 seconds for 20 minutes to test the
highest fan speed. Do not test unless the fan
is installed in the machine.
Did the error clear?
1 1. Replace the transfer module. See Problem resolved. Replace the original
“Transfer module removal” on transfer module. Go to step Next
page 4-179. 2.
2. POR the printer.
Note: Print 5 pages one at a time to check
Go Back
operation.
Did the error clear?
2 Turn the printer off, and then remove the rear Replace the HVPS cable. Go to step 3.
frame cover. See “Rear frame cover See “High-voltage power
removal” on page 4-47. supply (HVPS) cable
removal” on page 4-125.
Check the cable in connector JHVPS1 for
proper connection to the system board, the
cable for pinch points, and the cable or
connector for any other damage.
Is the cable damaged?
3 Disconnect JHVPS1 from system board and Go to step 4. Replace the HVPS cable.
HVPS. Check for the following continuity. See “High-voltage power
supply (HVPS) cable
removal” on page 4-125.
Pin 23
Pin 1
Pin 24 Pin 23
Pin 2
Pin 24
Pin 2 Pin 1
Is continuity present?
Previous
Step Questions / actions Yes No
Go Back
yellow2
yellow1
cyan1
cyan2
magenta1
magenta2
black1
black2
Is continuity present?
5 Replace the HVPS. See “High-voltage Problem resolved. Replace the system board.
power supply (HVPS) removal” on See “System board
page 4-123. removal” on page 4-163.
Does the error clear?
This error code indicates a mismatch between the operator panel assembly and the system board.
1 Has the operator panel assembly been Replace the operator panel Go to step 2.
replaced recently? assembly with a new, and
not previously installed,
operator panel assembly,
See “Operator panel
assembly removal
(C746)” on page 4-34 or
“Operator panel
assembly removal
(C748)” on page 4-37.
2 Has the top access cover assembly been Replace the top access Go to step 3.
replaced recently? cover assembly with a new,
and not previously
installed, operator panel
assembly. See “Top
access cover assembly
removal” on page 4-54.
3 Has the system board been replaced Replace the system board Go to step 4.
recently? with a new, and not
previously installed, system
board. See “System
board removal” on
page 4-163.
4 Turn the printer power off for ten or more Problem resolved. Go to step 5.
seconds. Then turn the printer back on (POR
the printer).
Is the error gone, and can the printer print?
Previous
Step Questions / actions Yes No
6 Replace the operator panel assembly. See Replace the system board. Problem resolved.
“Operator panel assembly removal See “System board
(C746)” on page 4-34 or “Operator panel removal” on page 4-163.
assembly removal (C748)” on page 4-37.
Next
Is the error message still displayed?
1 Turn the printer off, and remove the rear Replace the system board. Reseat the cable.
frame cover. See “Rear frame cover See “System board
removal” on page 4-47. removal” on page 4-163.
Check the cable in connector J49 for proper
connection to the system board.
A
Is the cable seated correctly?
Go Back
2 Turn the printer off, and remove the rear Replace the 5 V interlock Go to step 3.
frame cover. See “Rear frame cover switch. See “5 V interlock
removal” on page 4-47. switch cable removal” on
page 4-61.
Check the cable in connector JINT1 for
proper connection to the system board, for
pinch points, and for any other damage to the
cable or connector.
Is the cable damaged?
3 1. Disconnect the cable in connector JINT1. Replace the 5 V interlock Replace the system board.
2. Connect the new 5 V interlock switch to switch. See “5 V interlock See “System board
JINT1. switch cable removal” on removal” on page 4-163.
3. Bring the printer up in Diagnostics Menu page 4-61.
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
4. Activate the 5 V interlock switch.
Go Back
2 Turn the printer off, and remove the rear Replace the 24 V interlock Go to step 3.
frame cover. See “Rear frame cover switch. See “24 V
removal” on page 4-47. interlock switch removal”
on page 4-63.
Check the cable in connector JCVR1 for
proper connection to the system board, for
pinch points, and for any other damage to the
cable or connector.
Is the cable damaged?
3 1. Disconnect the cable in connector JCVR1. Replace the 24 V interlock Replace the system board.
2. Connect the new 24 V interlock switch to switch. See “24 V See “System board
the connector JCVR1. interlock switch removal” removal” on page 4-163.
3. Bring the printer up in Diagnostics Menu on page 4-63.
(turn off the printer, press and hold
buttons 3 and 6, then turn on the printer).
4. Activate the new 24 V interlock switch.
1 Is the bubble sensor flag damaged? Replace the fuser. See Go to step 2.
“Fuser removal” on Next
page 4-118.
Go Back
2 Remove the rear frame cover. See “Rear Replace the fuser DC Go to step 3.
frame cover removal” on page 4-47. cable. See “Fuser DC
cable removal” on
Check the fuser DC cable in connector page 4-121.
JFUSER1 for proper connection to the system
board, pinch points, and any other damage to Note: Make sure to verify if
the cable or connector. the new cable is working
properly first. Route the
Is the cable damaged? cables properly only when
you have verified that the
cables are working
properly.
4 Place a voltmeter between FUSER1 pin 3 and Replace the system board. Go to step 5.
ground (pin 6). See “System board
removal” on page 4-163.
Previous
Step Questions / actions Yes No
A dead printer is a condition where the display is blank, the LED on the operator panel is off, no fans turn, no
motors turn, and the fuser lamp does not come on.
If a 550-sheet option assembly is installed, remove the option and check the base printer for correct operation. If
Next
the base printer operates correctly, replace the 550-sheet option assembly.
Warning: Observe all necessary ESD precautions when removing and handling the system board or any
installed option cards or assemblies. See “Handling ESD-sensitive parts” on page 4-2. Go Back
CAUTION
When you see this symbol, there is a danger from hazardous voltage in the area of the product
where you are working. Unplug the product before you begin, or use caution if the product
must receive power in order to perform the task.
Remove any input and output paper handling options from the printer.
3 Check the system board for +5 V dc between Replace the system board. Go to step 4.
JLVPS2 pin 1 and ground. See “System board
removal” on page 4-163.
Is the voltage correct?
4 Is the JLVPS2 cable correctly installed at Go to step 5. Reseat the JLVPS2 cable.
JLVPS2 on the system board?
5 Turn the printer off. Disconnect the JLVPS2 Go to step 6. Replace the LVPS. See
cable from the system board. Turn the printer “Low-voltage power
on, and then measure the voltage between supply (LVPS) removal”
the JLVPS2 cable pin 1 and the JLVPS2 on page 4-127.
pin 14 (black wire).
Does this measure approximately +5 V dc?
7 1. Connect one cable at a time, and POR the The part connected to that Connect another cable and
printer. cable is faulty. Replace the continue with this step.
2. Is the printer dead? failing part.
Note: Before starting this service check, print out the network setup page. This page is found under
Menu—Reports—Network Settings. Consult the network administrator to verify that the physical and wireless
network settings displayed on the network settings page for the device are properly configured. If a wireless
network is used, verify that the printer is in range of the host computer or wireless access point, and there is no
electronic interference. Have the network administrator verify that the device is using the correct SSID, and
wireless security protocols. For more network troubleshooting information, consult the Lexmark Network Setup Previous
Guide.
9 Reset the address on the printer to match the Problem fixed. Go to step 10.
IP address on the driver.
Did this resolve the issue?
10 Have the network admin verify that the printer Go to step 12. Go to step 11.
and PC’s IP address have identical subnet
addresses.
Are the subnet addresses the same?
11 Using the subnet address supplied by the Problem resolved. Go to step 12.
network admin, assign a unique IP address to
the printer. Do not assign an address that is
already in use on the network.
Note: The printer IP address should match
the IP address on the printer driver.
Did this fix the problem?
14 Have the network administrator check the Replace the system board. Contact the network
network drop for activity. See “System board administrator.
removal” on page 4-163.
Is the drop functioning properly?
Previous
Step Questions / actions Yes No
15 Is the printer on the same wireless network as Go to step 17. Go to step 16.
the other devices?
16 Assign the correct wireless network to the Problem resolved. Go to step 17.
printer. Next
17 Are the other devices on the wireless network Go to step 18. Contact the network Go Back
communicating properly? administrator.
18 Verify that the ISP wireless card cable is Go to step 20. Go to step 19.
properly seated in their connectors.
Is the wireless card seated correctly?
20 Replace the ISP wireless card. See Installing Problem resolved. Replace the system board.
an Internal Solutions Port (ISP). See “System board
removal” on page 4-163.
Did this fix the problem?
1 Run the Button Test. See“Button Test” on Replace the operator panel Go to step 2.
page 3-14 in Diagnostics mode. assembly. See “Operator
panel assembly removal Go Back
Did any of the buttons fail the test? (C746)” on page 4-34.
2 Disconnect the operator panel assembly Replace the operator panel Replace the system board.
cable from JOPP1 on the system board, and assembly. See “Operator See “System board
then measure the voltage on pin 6 and panel assembly removal removal” on page 4-163.
ground. (C746)” on page 4-34. If
this does not fix the
Does the voltage measure approximately problem, replace the top
+3.3 V dc? cover access assembly.
See “Top access cover
assembly removal” on
page 4-54.
Service tip: The printer has detected a problem with the system board, the operator panel assembly cable (part
of the top cover access assembly), or the operator panel assembly if POST does not complete. The printer emits
five beeps, and then sticks in a continuous pattern until the printer is turned off.
1 Is the operator panel assembly cable properly Go to step 2. Reinstall the cable.
installed at system board JOPP1 and at the
operator panel assembly?
2 Measure the voltage between JOPP1 pin 2 Go to step 3. Replace the system board.
and ground on the system board. See “System board
removal” on page 4-163.
Is the voltage approximately +5 V dc?
3 Check continuity of the operator panel Replace the operator panel Replace the top cover
assembly cable. assembly. See “Operator access assembly. See
panel assembly removal “Top access cover
Is there continuity? (C746)” on page 4-34. assembly removal” on
page 4-54.
Service tip: The printer has detected a problem with the system board, the operator panel assembly cable (part
of the top cover access assembly), or the operator panel assembly if POST does not complete. The printer emits
five beeps, and then sticks in a continuous pattern until the printer is turned off.
1 Check for ground between JOPP1 pin 4 and Replace the operator panel Go to step 2.
ground. assembly. See “Operator
panel assembly removal
Is the voltage approximately 0 V dc? (C746)” on page 4-34.
Previous
Step Questions / actions Yes No
2 Check the operator panel assembly cable. Replace the top cover Replace the system board.
access assembly. See See “System board
Is the cable damaged? “Top access cover removal” on page 4-163.
assembly removal” on
page 4-54. Next
2 1. Turn off the printer. Return to the Old Top Return to the Old Top
2. Disconnect the J2 operator panel cable. access cover assembly, access cover assembly,
3. Connect a new top access cover then go to step 6. then go to step 3.
assembly from outside of the machine for
verification.
Does the problem persist?
3 1. Open the top access cover assembly, Replace operator panel Go to step 4.
Refer to “Top access cover assembly cable. See “Operator
removal” on page 4-54. panel cable removal” on
2. Reseat the operator panel cable on both page 4-140.
ends.
3. Check for any damage on the cable.
Is the cable damaged?
6 Replace the Operator panel cable. For dead display. Go to Problem resolved.
Dead printer service check.
Does the problem persist?
Replace the system board.
See “System board
removal” on page 4-163.
Note: This symptom may require replacement of one or more CRUs (Customer Replaceable Units) designated
as supplies or maintenance items, which are the responsibility of the customer. With the customer's permission,
you may need to install a developer (toner) cartridge or photoconductor unit.
Service tip: Before troubleshooting any print quality problems, do the following: Previous
1. Print a menu settings page, and then check the life status of all supplies. Any supplies that are low should
be replaced.
Note: Be sure and keep the original menu page to restore the customer's custom settings if needed.
2. On the menu page, make sure the following is set to the default level:
Next
– Color Correction: Set to Auto.
– Print Resolution: Set to 1200 dpi (print quality problems should be checked at different resolution
settings).
Go Back
– Toner Darkness: Set to 4 (default).
– Color Saver: Set to OFF.
– RGB Brightness, RGB Contrast, RGB Saturation: Set to 0.
– Color Balance: Select Reset Defaults to zero out all colors.
– Check the paper type, texture and weight settings against what is loaded in the printer.
Once the printer has been restored to its default levels, do the following:
3. Inspect the transfer module for damage. Replace if damaged.
4. Inspect the photoconductor units and toner cartridges for damage. Replace if damaged.
5. If paper other than 20 lb plain letter/A4 paper is being used, load 20 lb plain letter/A4 and print the Print
Quality pages to see if the problem remains.
6. Use Tray 1 to test print quality problems.
7. Print the Print Quality Pages, and then look for variations in the print from what is expected.
An incorrect printer driver for the installed software can cause problems. Incorrect characters could print, and
the copy may not fit the page correctly.
Print quality—background
Service tip: Some background problems can be caused by rough papers, non-Lexmark toner cartridges or if the
media texture is set to the rough setting.
Some slick or coated papers may also cause background problems. Some problems occur with printers that run
a large amount of graphics in a humid environment.
1 Read the current status of the photoconductor Reset the value. To reset Go to step 2.
unit from the customer menus. this value:
To view the status of the photoconductor 1. In Ready mode, select
units: Admin Menu.
1. In Ready mode, select Admin Menu. 2. Select Supplies Menu.
2. Select Reports. 3. Select Replace
Supply.
3. Select Device Statistics.
4. Select the PC color unit
Ask the customer if the photoconductor unit you want to change
has been recently replaced. It is possible the
photoconductor value was not reset and the 5. Select Yes.
photoconductor unit is past end of life. If the If this does not fix the
PC unit was recently replaced, reset the problem, go to step 2.
value. If the PC unit was not replaced, replace
the PC unit.
Has the photoconductor unit been recently
replaced?
Previous
Step Questions / actions Yes No
3 Check the high voltage contact from the Replace the spring or the Go to step 4.
HVPS to the transfer module. transfer contact assembly.
Transfer belt high voltage
path (typical 4X) Next
Go Back
Is a problem found?
1 Is all the packing material for the Go to step 2. Remove the packing
photoconductor unit in question removed? material.
2 Replace the photoconductor unit for the color Problem resolved. Go to step 3.
in question.
Does this fix the problem?
3 1. Enter the Diagnostics mode (turn off the Go to step 4. Replace the EP drive
printer, press and hold buttons 3 and 6, assembly. See
then turn on the printer). “Electrophotographic
2. Perform the appropriate cartridge drive (EP) drive assembly
motor test for the missing color. See removal” on page 4-98.
“General motor tests procedures” on
page 3-10.
Did the motor run?
Previous
Step Questions / actions Yes No
4 Check the high voltage contact from the Replace the transfer Go to step 5.
HVPS to the photoconductor charge roll. contact assembly.
Ensure the contact springs are properly
mounted and that the charge roll contact
spring is making good contact with the HVPS Next
spring that runs through the left printer frame
to view the proper mounting and for removal
procedures.
Go Back
High voltage
power supply
High voltage
contact path
5 Turn off the printer and check the continuity of Go to step 6. Replace the cable
the HVPS cable. assembly.
Pin 23
Pin 1
Pin 24 Pin 23
Pin 2
Pin 24
Pin 2 Pin 1
Is there continuity?
7 Replace the printhead. See “Printhead Problem resolved. Replace the system board.
removal, installation, and adjustment” on See “System board
page 4-153. removal” on page 4-163.
Did this fix the problem?
Blurred or fuzzy print is usually caused by a problem in the EP drive assembly or in the transfer module. Check
the EP drive assembly and transfer module for correct operation.
Blurred print can also be caused by incorrect feeding from one of the input paper sources, paper trays, or duplex
paper path. Next
Check the high voltage spring contacts to ensure they are not bent, corroded, or damaged. Replace as
necessary. Go Back
A photoconductor unit is not properly seated. Reset the specific photoconductor unit.
1 Measure the distance between repeating Replace the print cartridge. Replace the
bands. photoconductor unit. See
“Photoconductor unit
Is the distance between bands either 27 or removal” on page 4-150.
36mm?
2 Replace the fuser. See “Fuser removal” on Problem resolved. Replace the LVPS. see
page 4-118. “Low-voltage power
supply (LVPS) removal”
Does this fix the problem? on page 4-127.
Keep running prints through, and the problem normally clears up. If the problem persists, replace the developer
cartridge.
1 Replace the photoconductor unit. See Problem resolved. Replace the print cartridge.
“Photoconductor unit removal” on
page 4-150.
Service tip: The primary cause of random marks is due to loose material moving around inside the printer and
attaching to the photoconductor unit, developer roll, or transfer module.
2 Is there any loose or foreign material on the Replace the print cartridge. Go to step 3.
cartridge roll?
3 Is there any loose or foreign material on the Replace the transfer Contact your next level of
transfer module? module. See “Transfer support.
module removal” on
page 4-179.
Service tip: Install a new print cartridge if available before doing this service check. Residual image can be
caused by the photoconductor, cleaning blade, and other parts inside the print cartridge.
1 Is there any toner contamination on the fuser Replace the fuser. See Contact your next level of
assembly? “Fuser removal” on support.
page 4-118.
Service tip: A solid color page is generally caused by a problem in the high voltage system or an incorrect high
voltage in the printing process resulting in toner development on the entire photoconductor drum.
1 Replace the photoconductor unit for the color Problem resolved. Go to step 2.
in question.
Does this fix the problem?
Previous
Step Questions / actions Yes No
2 Check the high voltage contact from the Replace the transfer Go to step 3.
HVPS to the photoconductor charge roll. contact assembly.
Ensure the contact springs are properly
mounted and that the charge roll contact
spring is making good contact with the HPVS Next
spring that runs through the left printer frame
to view the proper mounting and for removal
procedures.
Go Back
3 Turn the printer off, and then check the Go to step 4. Replace the cable
continuity of the HVPS cable. assembly.
Pin 23
Pin 1
Pin 24 Pin 23
Pin 2
Pin 24
Pin 2 Pin 1
Is there continuity?
4 Replace the HVPS. See “High-voltage Problem resolved. Replace the system board.
power supply (HVPS) removal” on See “System board
page 4-123. removal” on page 4-163.
Did this solve the problem?
3 1. Reseat JHVPS1 on the system board. Replace the HVPS cable. Go to step 4.
2. Reseat the other end of the cable located See “High-voltage power
on the HVPS. supply (HVPS) cable
3. Check for cuts and damage on the HVPS removal” on page 4-125.
cable.
Is the HVPS cable damaged?
4 1. Check the metal contact on the left of the Replace the transfer Go to step 5.
transfer module for any damage. module. See “Transfer
2. Check for any contamination, and clear any module removal” on
contaminants with a piece of cloth. page 4-179.
Are the transfer module contacts damaged?
9 1. Reseat the HVPS card. Problem resolved. Replace the HVPS. See
2. Make sure the contacts is properly aligned “High-voltage power
with the HVPS. supply (HVPS) removal”
Does this fix the problem? on page 4-123.
2 1. Clear the tray path of any obstruction. Go to step 3. Replace the tray.
2. Check for damage on the tray.
Is the tray free of damage?
3 1. Remove the tray and inspect the narrow Go to step 4. Replace the paper pick
media flag on the paper pick assembly for assembly. See “Paper pick
any damage. mechanism assembly
2. Reseat the connector Jtray1 and JFDPCK removal” on page 4-145.
on the system board, then check for any
damage on the connectors.
Are the flag and cable connectors free of
damage?
4 1. Disconnect the cable in JTRAY1, and Replace the paper pick Replace the system board.
connect the cable from the new paper pick assembly. See “Paper pick See “System board
mechanism. mechanism assembly removal” on page 4-163.
2. Bring the printer up in the Diagnostics removal” on page 4-145.
menu (turn off the printer, press and hold
buttons 3 and 6, turn on the printer).
3. Navigate to Sensor Tests > Dynamic
Sensors > Narrow Media.
4. Activate the narrow media sensor
Did the narrow media sensor status change on
the touchscreen?
Tray linking is useful for large print jobs or multiple copies. When one linked tray is empty, paper feeds from the
next linked tray. When the Paper size and Paper Type settings are the same for any trays, the trays are
automatically linked.
Next
1 Load the same size and type of paper in each Problem resolved. Go to step 2. Go Back
tray. Move the paper guides to the correct
positions for the paper size loaded in each
tray.
Does tray linking work properly?
2 Print a menu settings page from the Admin Problem resolved. In the Admin menus, set the
Menu, and compare the settings for each tray. same settings for paper size
and paper type in each tray.
Are the settings for each tray to be linked the
same for paper type and paper size?
This chapter explains the tests and procedures to identify printer failures and verify repairs have corrected the
problem.
Next
There are different test menus that can be accessed during POR to identify problems with the printer.
Diagnostics menu 1. Turn off the printer. The Diagnostics menu group contains the settings
2. Press and hold buttons 3 and and operations used while manufacturing and
6. servicing the printer.
3. Turn on the printer. See “Diagnostics menu” on page 3-2 for more
4. Release the buttons when the information.
clock graphic displays.
Configuration menu 1. Turn off the printer. The Configuration menu group contains a set of
2. Press and hold buttons 2 and menus, settings, and operations which are
6. infrequently required by a user. Generally, the
3. Turn on the printer. options made available in this menu group are
used to configure a printer for operation.
4. Release the buttons when the
progress bar displays. See “Configuration menu (CONFIG MENU)” on
page 3-27 for more information.
Network SE Menu 1. While in Network/Ports Menu The Network SE menu contains advanced network
(Menus—Network/ menu tools. This key press only accesses the
Ports—Standard Network SE Menu when the panel displays the
Network—STD NET SETUP), top-most settings inside the Standard Network
press and hold buttons 6, 7, menu.
and 9.
SE Menu From browser, add “/se” to
device’s IP address (e.g. http://
158.183.3.2/se)
To run the printer diagnostic tests described in this chapter, you must put the printer in Diagnostics mode.
Previous
Diagnostics menu
Note: Tray 2 refers to the 550-sheet tray located in the 550-sheet option assembly.
When the Diagnostics mode is entered, each Diagnostics main menu item displays on the operator panel. When
a diagnostic test is selected from the main menu, a sub menu displays and each individual test displays in the Go Back
order shown. Any options that are referred to in the menus are displayed when the option is installed.
Available tests
REGISTRATION
Top Margin See “Registration” on page 3-5.
Bottom Margin
Left Margin
Right Margin
Skew See “Skew” on page 3-5.
Quick Test See “Quick Test” on page 3-8.
ALIGNMENT MENU
Cyan See “Alignment” on page 3-8.
Magenta
Yellow
Factory Scanner A summary page for all the color alignment settings. Can be used in
place of alignment pages for each individual color.
Factory Manual
MOTOR TESTS (order differs depending upon model)
Align Motor Test Note: Many of these tests require special conditions in order to
successfully test the motors. See “General motor tests procedures”
Cart 1 on page 3-10.
Cart 2
Cart 3
CAM
COD
DUPLEX
Fuser
MPF
Transfer Belt
Option Motors
Tray 1
Servo Laser Test See “Servo Laser Test” on page 3-20. Previous
PRINTER SETUP
Defaults See “Defaults” on page 3-22. Go Back
Prt Color Pg Count See “Page Counts” on page 3-23.
Prt Mono Pg Count
Perm Page Count
Serial Number See “Serial Number” on page 3-23.
Model Name See “Model Name” on page 3-23.
Engine Setting 1 through 4 See “Engine Setting 1 through 4” on page 3-23.
Configuration ID See “Configuration ID” on page 3-23.
Reset Color Cal See “Reset color calibration (Reset Color Cal)” on page 3-24.
Par 1 Strobe Adj See “Parallel 1 strobe adjustment (Par 1 Strobe Adj)” on
page 3-24.
Motor Calibration See “Motor Calibration” on page 3-24.
EP SETUP
EP Defaults See “EP Defaults” on page 3-24.
Fuser Temp See “Fuser temperature (Fuser Temp)” on page 3-24.
DC Charge Adjust See “DC Charge Adjust, Dev Bias Adj, Transfer Adjust” on
page 3-25.
Dev Bias Adj
Transfer Adjust
REPORTS
Menu Settings Page See “Menu Settings Page” on page 3-25.
EVENT LOG
Display Log See “Display Log” on page 3-25.
Print Log See “Print Log” on page 3-26.
Clear Log See “Clear Log” on page 3-26.
EXIT DIAGNOSTICS This selection exits Diagnostics mode, and Resetting the Printer
displays. The printer performs a POR, and returns to normal mode.
Registration Previous
Note: If you need to perform alignment or registration, see “Printhead alignment” on page 4-8.
The following information is meant to explain the uses for the menu items.
Print registration makes sure the black printing is properly aligned on the page. This is one of the steps in Next
aligning a new printhead. It is also the first step in aligning the duplex registration. See “Quick Test (duplex)”
on page 3-16.
Go Back
The settings available are Top Margin, Bottom Margin, Left Margin, Right Margin, Skew, and Quick Test.
Skew
One printhead houses the four color planes. The black plane is aligned to the printer, and the color planes are
internally aligned to black. Adjust the skew mechanically by moving the printhead with a printhead adjustment
screw. See “Printhead mechanical alignment (C746)” on page 4-8 for instructions on setting printhead
alignment. Electronic alignment fine tunes the alignment of the color planes to the black plane once the
printhead is installed. Skew adjustment must be performed before color alignment is attempted. The following
illustration shows proper alignment versus skewed alignment.
3. Use or to select the margin setting you need to change, and press .
4. Use to decrease or to increase the offset values, and press to confirm the value.
5. The message Submitting selection displays and the original REGISTRATION screen appears.
The print registration range is:
Go Back
Alignment
Note: If you need to perform alignment or registration, see “Printhead alignment” on page 4-8.
The following information is meant to explain the uses for the menu items.
Alignment is part of the process of adjusting the printhead and the color planes to the black plane and to each
other. Before you start, perform the black alignment (Registration). See “Printhead alignment” on page 4-8. If
you are replacing a new printhead, see “Printhead removal, installation, and adjustment” on page 4-153.
Alignment (C746x)
To perform alignment:
1. Select ALIGNMENT MENU from the Diagnostics Menu. Scroll until you reach the color that you desire to
align. Go to each submenu, press and use the right and left arrow keys to zero out all settings. Press
after you zero out each setting.
Note: It is important to zero out all settings to make the adjustment easier.
2. Scroll to Quick Test in the same color menu. Press ; two pages print.
3. On the pages, make sure all the Current Values are set to zero. If not, go back two steps and repeat.
4. Look at the coarse and fine adjustments on the top left of the page, and enter the best number for the top Previous
adjustment in the T space. Transfer this number over to the computation area for Z.
5. On the operator panel, use and to locate Top Margin. Press , and then use or to enter the
setting computed for T. Press to save.
6. Repeat this process for skew (Z). Add the T value and the current Z value to obtain the new skew (Z)
value.
Next
7. Reprint the Quick Test page, and observe the results. Make additional adjustments if necessary before
proceeding on to Quick Test step two page.
8. Obtain left (L), right (R), and Bow (P) value using the same method as obtaining T from Quick Test Step 1.
Go Back
Reprint the Quick Test to ensure the settings are correct. Make additional adjustments as required.
9. Press to return to ALIGNMENT MENU.
Alignment (C748x)
To perform alignment:
1. Touch ALIGNMENT MENU from the Diagnostics Menu. Scroll until you reach the color that you desire to
align. Go to each submenu, and use and to zero out all settings.
Note: It is important to zero out all settings to make the adjustment easier.
2. Scroll and touch Quick Test in the same color menu. Two pages print.
3. On the pages, make sure all the Current Values are set to zero. If not, go back two steps and repeat.
4. Look at the coarse and fine adjustments on the top left of the page, and enter the best number for the top
adjustment in the T space. Transfer this number over to the computation area for Z.
5. On the operator panel, touch Top Margin, and then use or to enter the setting computed for T.
Touch to save.
6. Repeat this process for skew (Z). Add the T value and the current Z value to obtain the new skew (Z)
value.
7. Reprint the Quick Test page, and observe the results. Make additional adjustments if necessary before
proceeding on to Quick Test step two page.
8. Obtain left (L), right (R), and Bow (P) value using the same method as obtaining T from Quick Test Step 1.
Reprint the Quick Test to ensure the settings are correct. Make additional adjustments as required.
9. Touch Back to return to ALIGNMENT MENU.
See “Printhead mechanical alignment (C746)” on page 4-8 for printout samples and additional information.
The motor tests are run to locate noises in the printer and isolate failures between the motors, cables, and
system board.
In some instances, when you enter a particular test, you will be given the choice to run the motor in forward or
reverse. Other times, there will only be the option to run the motor in forward direction. Go Back
The following tests have special setup before running the test:
Setup requirements
Motor Top cover Front door Notes
position position
Tray 1 N/A Closed • Ok
• Picks paper – use empty or remove tray
Open Ok
Align N/A Closed Ok
Open • Ok
defeat +25 V switch • View align mechanism
Duplex N/A Closed Ok
Closed • Ok
split front door • View duplex mechanism (pull tray to isolate gears)
Open • Ok
defeat +25 V switch • Duplex mechanism disconnected from motor
Belt stepper N/A Closed • No motion
• No error reported
Open • Ok
• Belt disconnected from motor
Cartridge K – 3 N/A Closed • No motion
• No error reported
Open • Ok
• Cartridge disconnected from motor
Cart MCY – 2 N/A Closed • No motion
• No error reported
Open • Ok
• Cartridge disconnected from motor
Open • Ok
• Cartridge disconnected from motor
Go Back
Fuser Closed Closed Ok
Open Possible under-temp 120.04 error
Open N/A Not recommended, fuser errors possible
Cam N/A Closed • Ok
• Front door locks & unlocks
Open • Ok
• Door disconnected from motor
• View gearbox
COD N/A Closed • Ok
• Engages and disengages cartridges
Open • No motion
• No error reported (open while test is running)
Motor diagnostics
Print Tests
The purpose of the diagnostic Print Tests is to verify that the printer can print on media from each of the installed
input options. The contents of the Print Test Page varies depending on the media installed in the selected input
source.
Check each Test Page from each source to assist in print quality and paper feed problems.
If a source is selected that contains envelopes, an envelope test pattern is printed. If Continuous is Previous
selected, the test pattern is printed only on the first envelope.
Note: The Print Test Page always prints on one side of the paper, regardless of the duplex setting.
Next
Print quality test pages (Print Quality Pages)
The print quality test consists of five pages. Pages one and two contain a mixture of graphics and text. The
remainder of the pages only contain graphics. The test prints on the media in the default tray. Go Back
This test may be printed from either Configuration Menu or the Diagnostics mode. To run the print quality pages
from the Diagnostics mode, select PRINT TESTS and Print Quality Pages from the menu. Once the test is
started, it cannot be canceled. When the test pages print, the printer returns to the original screen.
To run the Print Quality Test Pages, select Print Quality Pages from PRINT TESTS. The message Printing
Quality Test Pages is displayed, and the test prints.
Panel Test
Note: For C746x, the operator panel display cycles through red, green, blue, white, and black.
Button Test
DRAM Test
This test checks the validity of DRAM, both standard and optional. The test writes patterns of data to DRAM to
verify that each bit in memory can be set and read correctly.
To run the DRAM Test, navigate to Diagnostics Menu> HATDWARE TEST > DRAM Test. The power indicator
blinks indicating the test is in progress.
Note: If you need to exit the test before it is complete, turn off the printer.
P:###### represents the number of times the memory test has passed and finished successfully. Initially,
000000 displays with the maximum pass count being 99,999.
F:##### represents the number of times the memory test has failed and finished with errors. Initially, 00000
displays with the maximum fail count being 99,999.
Once the maximum pass count or fail count is reached, the test is stopped, the power indicator turns on solid,
and the final results appear. If the test fails, SDRAM Error appears for approximately three seconds and the
failure count increases by 1.
Serial 1 Wrap
The Serial 1 Wrap Test is used to check the operation of the serial port hardware using a wrap plug. Each serial
signal is tested.
1. Disconnect the serial interface cable, and install the serial wrap plug.
2. Select HARDWARE TESTS from the Diagnostics Menu.
3. Select Serial 1 Wrap.
The power indicator blinks indicating the test is in progress. The following screens appear
Next
Serial Wrap [x] Testing…
Go Back
Resetting the
Printer
Serial Wrap
P:###### F:####
P:###### represents the number of times the serial port hardware has passed.
Initially, 000000 is displayed. The maximum pass count is 999,999.
F:###### represents the number of times the serial port hardware has failed.
Initially, 0000 is displayed. The maximum fall count is 999,999.
Any of the following explanations for failure may display:
• Receive Status Interrupt Error
• Status Error
• Receive Data Interrupt Error
• Transmit Data Interrupt Error
• Transmit Empty Error
• Threshold Error
• Receive Data Ready Error
• Break Interrupt Error
• Framing Error
• Parity Error
• Overrun Error
• Data Error
• Data 232 Error
• Data 422 Error
• FIFO Error
• DSR Error
• DSR PIO Error
• DSR Interrupt Error
• CTS Error
• CTS PIO Error
• CTS Interrupt Error
Duplex Tests
Note: Before you set the duplex top margin, be sure to set the skew and alignment. See “Printhead
alignment” on page 4-8.
This test prints a duplex version of the Quick Test that can be used to verify the correct placement of the top
margin on the back side of a duplex page.
You can run one duplexed page (Single), or continue printing duplexed pages (Continuous) until is
pressed. For information about changing the margin, see “Top Margin (duplex)” on page 3-18.
The paper you choose to print the page on should be either Letter or A4.
The single test stops automatically when a single duplex sheet is printed, and the continuous test continues until Go Back
you press .
This test provides service personnel with a way to verify the function of the printer’s duplex hardware. After the
user selects this test, the device automatically executes a continuous print test that generates a duplexed, color
output page. To stop the test, the user must press . While this test executes, the power indicator light blinks
green and the panel displays “DUPLEX TESTS Printing...”.
The paper you choose to print the page on should be either Letter or A4.
This setting adjusts the duplex motor speed when it feeds through the aligning roll. It controls the skew between
the first scan line and the top of the page. Adjustments are made to the image that is facedown in the output
tray.
This setting controls the offset between the first scan line on the front of the duplex page and the first scan line
on the back of the page. The duplex adjustments are made to the image that is face down in the output tray.
Therefore, be sure to set the top margin in REGISTRATION before setting the duplex top margin. See
“Registration” on page 3-5.
By modifying this setting you can shift the image on the back side of a duplex page to the right or to the left.
6. Use or to select the margin setting you need to change, and press . For C748x, use or to Previous
select the margin setting you need to change, and touch .
• Each increment shifts the duplex left margin by 4 pixels at 600 dpi (0.00666 inches or 0.1693 mm).
• The Left Margin range is -50 to +50, and the default value is 0.
• An increase moves the margin to the right, and a decrease moves the margin to the left.
Next
Sensor Test
There are two groups of sensors tests, static sensors and dynamic sensors. Go Back
Dynamic Fuser Exit Open/Closed Open the top access cover. Activate the fuser
sensors exit flag. The sensor should change state.
Input Open/Closed Remove the paper tray 1. Activate the input
sensor flag. The sensor should change state.
Next
Door Open/Closed Open the front door. The sensor should
change state.
Narrow Media Open/Closed Test the MP feeder tray by inserting a sheet of Go Back
paper, and pushing up to sensor. The sensor
should change state.
K Toner Open/Closed Remove the black toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
M Toner Open/Closed Remove the magenta toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
C Toner Open/Closed Remove the cyan toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
Y Toner Open/Closed Remove the yellow toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
TPS (toner patch Open/Closed Open the front access door. Slip a piece of
sensor) paper between the TPS and the transfer
module. The sensor should change state.
Bubble Open/Closed Open the front door. Activate the fuser entry
flag. The sensor should change state.
Dynamic MPF Open/Closed Test by removing the MPF pick arm and
activating the paper present sensor or remove
the tray and shine a flashlight on the paper
present sensor.
Bin Full Test Open/Closed Move the bin full sensor flag (located on the
Other Sensors fuser) up and down to toggle the sensor state.
Printhead Tests
Device Tests
Note: These tests only appear if the flash or disk option is installed.
This test performs a non-destructive read/write on one block per track on the disk. The test reads one block on
each track, saves the data, and proceeds to write and read four test patterns to the bytes in the block. If the
block is good, the saved data is written back to the disk.
Warning:This test destroys all data on the disk and should not be attempted on a good disk. This test may run
approximately 1½ hours depending on the disk size.
Flash Test
This test causes the file system to write and read data on the flash to test the flash.
Warning:This test destroys all data on the flash because the flash is reformatted at the end of the test.
Printer Setup
Defaults
U.S./Non-U.S. defaults changes whether the printer uses the U.S. factory defaults or the non-U.S. factory
defaults. The settings affected include paper size, envelope size, PCL symbol set, code pages, and units of
measure.
Warning: Changing this setting resets the printer to factory defaults, and data may be lost. It cannot be undone.
You can view, but not change any of the three counts displayed under PAGE COUNTS.
To view the Prt Color Pg Count, the Prt Mono Pg Count, or the Perm Page Count:
Serial Number
Warning:Do not change these settings unless requested to do so by your next level of support.
Model Name
Configuration ID
The two configuration IDs are used to communicate information about certain areas of the printer that cannot be
determined using hardware sensors. The configuration IDs are originally set at the factory when the printer is
manufactured. However, the servicer may need to reset Configuration ID 1 or Configuration ID 2 whenever the
system board is replaced. The IDs consist of eight digits. The first seven digits in each ID are hexadecimal
numbers, while the last digit is a checksum of the preceding seven digits. Each ID can contain a combination of
the digits 0 through 9, and A through F.
Note: When the printer detects a Configuration ID that is not defined or invalid, the following occurs:
• The default standard model Configuration ID is used instead.
• Configuration ID is the only function available in DIAGNOSTICS.
• Unless the menu is in DIAGNOSTICS, Check Config ID displays.
To set the configuration ID:
5. Repeat the steps for entering the Configuration ID 2, and press . Previous
Note: The printer will NOT perform an automatic POR after the Configuration IDs are accepted.
The Reset Color Cal enables the alignment of the color planes using pre-programmed values. Automatic Color Next
Adjust Calibration may be more effective.
Note: This setting appears only if the printer has a parallel port available in the PCI slot 1.
This setting enables the servicer to adjust the amount of time the strobe is sampled in order to determine if valid
data is available on the parallel port. The range of values is -4 to 6. Each time this value is incremented by 1, the
strobe is sampled 50 ns (nanoseconds) longer. Each time this value is decreased by 1, the strobe is sampled 50
ns less often. When the value of this setting is 0, the factory default is used to determine the length of time the
strobe is sampled. If the servicer, for example, decreased the value from 0 to 3, the strobe will be sampled for
150 ns longer than the factory setting.
Motor Calibration
This test is run to calibrate the leading edge of the paper to each transfer station.
EP Setup
EP Defaults
This setting is used to restore each printer setting listed in EP SETUP to its factory default value. Sometimes this
is used to help correct print quality problems.
To restore EP Defaults:
This adjustment can be used to help solve some customer problems with paper curl on low grade papers and
problems with letterheads on some types of media.
The fuser temperature can be adjusted to: Low, Normal, High. The default is Normal.
Each of these three settings enables you to adjust the high voltage levels controlling the electrophotographic
process. You will use these settings to compensate for unusual operating circumstances such as high humidity.
The printer uses the value of these settings together with other settings to calculate printing speed and media
selection.
Next
Reports
Go Back
Menu Settings Page
The Menu Settings Page is a list of DIAGNOSTICS settings with the current value.
Event Log
Display Log
The event log provides a history of printer errors. It contains the 12 most recent errors that have occurred on the
printer. The most recent error displays in position 1, and the oldest error displays in position 12 (if 12 errors have
occurred). If an error occurs after the log is full, the oldest error is discarded. Identical errors in consecutive
positions in the log are entered, so there may be repetitions. All 2xx and 9xx error messages are stored in the
event log.
Additional diagnostic information is available when you print the event log from DIAGNOSTICS rather than
CONFIG MENU.
The printed event log can be faxed to Lexmark or your next level of support for verification or diagnosis.
Clear Log
Use Clear Log to remove the current information in the Event Log. This affects both the viewed log and the
printed log information.
EXIT DIAGNOSTICS
Previous
Configuration menu (CONFIG MENU)
Available tests
The tests display on the operator panel in the order shown. Next
Exit Config This selection exits Configuration Menu, and Resetting the Printer Previous
displays. The printer performs a POR and returns to normal mode.
Resets the fuser count value to zero. The Event Log records each time that a user executes the Reset Fuser Next
Count operation. See “Event Log” on page 3-29 for more information. This setting only appears if the
Maintenance Warning and Intervention function is enabled in the printer Configuration ID.
Go Back
To reset the fuser count:
Press or touch to print the pages. The Print Quality Test Pages contain several pages. The first page
which is printed in English text only contains a mixture of text and graphics. The information includes values of
the Quality Menu settings in Settings and printer and toner cartridge configuration information. The remaining
pages contain only graphics. For samples of the pages, see “Print quality test pages (Print Quality Pages)”
on page 3-13.
Reports
Reports Previous
The Menu Settings Page generates a list of Configuration Menu settings and the current values.
Next
Event Log
This menu item lets the system support person print a limited set of the information contained in the Diagnostics Go Back
mode version of the printed Event Log. For a sample of a Diagnostics Menu Event Log printout, see “Event
Log” on page 3-25. The limited Configuration log and the full Diagnostics log printed versions show the same
operator panel messages when they print and follow the same layout guidelines.
Color Trapping
Uses an algorithm to compensate for mechanical misregistration in the printer. When small black text or fine
black lines are being printed, the printer checks to see if they are being printed on top of a colored background.
If so, rather than remove the color from beneath the black content, the printer leaves the color around the edge
of the text or line. The hole in the colored region is reduced in size which prevents the characteristic white gap
that is caused by mis-registration.
This menu item applies to PCL 5e emulation, PCL XL, PDF, and PostScript.
Selections are Off and the values 1 through 5, with 2 as the default. Values 1 through 5 indicate the amount of
color remaining beneath the black content. Each setting increments by 1/600 of an inch. The less accurate the
registration setting, the higher the setting needs to be adjusted. Selecting Off disables color trapping. The
default value is 2.
This setting determines how many seconds the panel will display the Tray Insert message after inserting a tray
into the printer.
Selections are Disabled and the values between 1 and 90. The default value is 5.
Panel Menus
Lets the system support person turn enable or disable the operator panel Administration Menu. Selecting On
(the default) prevents users from changing values for the printer. Off allows users to changes the values. The
default value is set to On.
This menu item only appears when the PJL PASSWORD Environment variable is set to 0.
Activates or deactivates (default) the Personal Printer Data Stream (PPDS) emulation language. This menu item
only appears if the PPDS interpreter is available.
This menu item allows the system support person turn the download emulator off temporarily. This menu item
only appears if at least one download emulator is installed. Go Back
The only selection is Disable. The printer automatically re-enables all download emulators after two instances of
a power-on reset for the printer. To re-enable these emulators, a user would perform another power-on reset
after exiting the Config Menu.
Demo Mode
This menu item allows marketing personnel or merchandisers demonstrate the printer to potential customers by
printing the demo page.
Selections include Deactivate (default) and Activate. Select Deactivate to turn Demo Mode off; or select
Activate to turn Demo Mode on.
Factory Defaults
This menu item resets the majority of printer values back to their factory default settings.
Warning: This selection cannot be reversed, so this operation should only be used as a last resort to fix any
printer problem.
When factory default settings are restored:
• All downloaded resources (fonts, macros, symbol sets) in the printer memory (RAM) are deleted.
• All menu settings return to the factory default setting except:
– The Display Language setting in the “Setup” Menu.
– All settings in the Parallel Menu, Serial Menu, Network Menu, Infrared Menu, LocalTalk Menu, and
USB Menu.
Selections are Restore Base and Restore STD NET. The Restore Network value only appears on printer
models that have integrated network support.
Restoring Factory Defaults appears on the operator panel while factory defaults are restored.
Energy Conserve
This menu item affects the values that appear in the Power Saver menu on the operator panel. Energy
Conserve only appears when the Power Saver feature is disabled.
Select Off in Energy Conserve to add a menu item to the Power Saver called Disabled. Energy Conserve does
not disable Power Saver, it only allows the users to select Disable. When On (default) is selected in the Energy
Conserve menu Disabled does not appear on as a choice in the Power Saver menu. Power Saver cannot be
disabled from the user‘s operator menu.
Sets the suggested number of pages which the printer should print between consecutive calibrations.
Selections are Off and the values between 100 and 1000 in increments of 50. The default is 500 pages.
If the printer exceeds the set value while printing a job, it completes the current job and any other jobs received Next
while printing the current job before it initiates a calibration. The printer does not cancel or suspend an active job
in order to perform a calibration. If a user is in any of the menus, including the Configuration Menu and the
Diagnostics mode, an automatic color adjust calibration does not occur. Go Back
Controls whether the printer executes the automatic alignment calibration after an initiating event occurs. When
an event initiates a TPS operation, the printer performs a toner density calibration, (TPS) an alignment
calibration, or both of the calibrations.
Toner Patch Sensing (TPS) is a diagnostic mechanism that automatically adjusts the printer toner density and
alignment settings. When TPS executes, the printer generates toner patches on the transfer module. It then
uses these to calculate the appropriate adjustment, to density, if necessary.
Selections are On (default) and Off. Turning this setting to Off is not recommended for normal operation
because it prevents the printer from using the results of automatic color calibration and automatic alignment to
make minor adjustments. Eventually, the user will have to manually correct alignment and color on the printer.
These settings allow you to select when color calibrations occur. Selecting Busy indicates the color calibrations
will complete queued jobs, but refuse to add new jobs to the queue. When calibration is complete jobs are again
accepted. Selecting Idle allows calibrations only when the printer is idle.
This setting gives the system support person the ability to enforce where the color cartridges may be placed,
and if messages appear when cartridges are in the wrong location.
When On (default) is selected, the printer lets users place each toner cartridge in only its specified slot. For
instance, the Magenta toner cartridge must be in the Magenta slot. If the user tries to place a cartridge in an
incorrect slot, the printer message 31 Defective or Missing <color> Cartridge or 32 Unsupported <color> Cartridge
appears where <color> stands for Cyan, Magenta, Yellow, or Black.
When Off is selected, the printer does not issue any message to let the user know that the cartridge is placed in
the wrong slot inside the printer.
Color Alignment
Color alignment should be performed when the printhead may become misaligned because it was removed or
replaced. Perform Color Alignment when a new transfer belt assembly is installed.
This test is run to calibrate the leading edge of the paper to each transfer station.
Controls the source the printer selects for a change paper source message. The printer displays the change
paper source message based on the size of the paper requested and not by the paper type.
Load Manual overrides that would result in a change paper message are disabled for Paper or Envelope
prompts that are set to Manual, Manual Paper, or Manual Envelope.
Envelope Prompts
Controls the source the printer selects for a change envelope source message. The printer displays the change
envelope message based on the size of the envelope requested and not by the envelope type.
Load Manual overrides that would result in a change paper message are disabled for Paper or Envelope
prompts that are set to Manual, Manual Paper, or Manual Envelope.
This setting gives the user the option of having the printer resolve change prompt situations without requiring
any user assistance. If the Prompt user value is selected, the printer displays change prompts if the job does
not match the media in the selected source. The user must select another source or change the paper. If
Continue or Use current is selected, the printer acts as if the user made the selection Continue or
Use current and continues without user intervention, in most cases.
Jobs on Disk
Lets the user select whether or not the printer deletes all buffered jobs on the hard disk. This menu item only
appears if a hard disk is installed. It appears even if no buffered jobs exist on the hard disk.
Note: Delete does not remove Print and Hold jobs. Use Remove Held Jobs in the Utilities Menu (user menu)
to delete these jobs.
Controls whether the printer encrypts the information that it writes to the hard disk.
Warning: When the value for Disk Encryption, the printer completely formats the hard disk which means that all
information on the disk is deleted.
Next
Note: If an encrypted disk is removed from the printer and another disk is installed, the Disk Corrupted. Reformat?
message appears. The newly installed disk must either be formatted or removed from the printer.
Go Back
Selections include Disable (default) and Enable. When Disk Encryption is selected, Yes or No appears for you
to confirm. Select either Yes or No to continue. To cancel, select No.
Wipe Disk
Note: Due to the lengthy amount of time required to wipe an entire hard disk using either method, a wipe should
not be initiated unless it is absolutely unavoidable (for example, disk corruption), or unless the printer can
remain offline for several hours without inconveniencing users.
Warning: A user should not initiate either type of wipe from the Configuration Menu if the hard disk contains
downloaded fonts, macros, held jobs, and so forth that should not be erased.
This setting initiates either a single pass wipe or a multiple pass wipe of the entire hard disk. Select Disk Wipe
(fast) to complete a single pass wipe and replacement of the file system. Select Disk Wipe (secure) to
complete a multiple pass wipe at a more basic level.
After selecting this setting, the operator panel displays the following message:
This operation will clear all settings, solutions, and jobs on this device. The device will reboot during this process.
Continue?
To cancel the NAND wipe operation and return to the main Configuration Menu, select No. To execute the
NAND wipe operation, select Yes.
After selecting Yes, the device initiates a non-critical NVRAM reset, and the operator panel displays the
message Resetting the device, and then the device reboots.
The progress bar area of the Lexmark logo screen that appears during boot up displays the following message
until the wiping process is finished:
Generates higher quality duplex copies than when using the normal duplex mode. The major difference between
normal duplex and duplex gloss mode is the number of sheets in the duplex print media path. Normal duplex
mode feeds two sheets simultaneously, while duplex gloss feeds only one sheet.
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Selections include Off (default) and On.
Lets a user set a text point-size value below the setting of the high frequency screens used when printing font
data. This menu item only affects the PostScript, PCL, XL, and PDF emulators.
Settings are in the range of 0–150 (24 is the default). For example, if the value is set to 24, then all fonts sized 24
points or less use the high frequency screens.
Require Standby
When set to Off, the Standby Mode setting in the General Settings Menu displays a Disabled value.
UI Automation
This setting allows external developers to measure the stability of their applications by performing their own
automated testing against the device.
When Enable is selected, the machine creates a file called ENABLE_UI_AUTOMATION in the /var/fs/shared/
directory. As long as this file exists, the device permits automated testing by external users.
When Disable is selected, the machine removes the ENABLE_UI_AUTOMATION file from the /var/fs/shared/
directory and prohibits automated testing.
This determines the initial length of delay before a repeating key starts repeating.
The selection values are from 0.25 to 5.00 with 0.25 second increments. The default value is 1.00.
This determines the value for the number of presses per second for a repeating key.
The selection values are from 0.5 to 100.0 with 0.5 second increments. The default value is 15.0.
This operation erases any strings that have been defined by the user for the Default or Alternate custom
messages.
USB Speed
When On is selected, the operator panel automatically displays any existing printer-related IR after the device
remains inactive on the Home screen for a length of time equal to the Screen Timeout setting. Any IR that
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appears on the operator panel will display the option to return to the Home screen without clearing it. Once the
device returns to the Home screen, though, any existing IR again will appear after the device remains inactive
on the Home screen for a length of time equal to the Screen Timeout setting.
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Note: SFPs and MFPs use a different default value for this setting in order to preserve their legacy behavior
with respect to IRs.
Exit Config
Exits the Configuration Menu. The printer performs a power-on reset and returns to normal mode.
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Front cover locked in place
The front door locks during certain Busy events, and unlocks when those events are complete. This is a normal
function. You can hear the door lock into place when one of these events take place. However, if the printer is
turned off, or has an error while the front door is locked (for example, while printing or calibrating), the front door Next
may not unlock. If this happens, turn the printer off, and restart it. Once it goes through POR, it may unlock itself.
If this does not work, use the following procedure to unlock the front door:
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1. Remove the two screws (A) from the rear upper cover, and remove the cover.
2. Remove the two screws (B) from the rear left cover.
3. Press the waste toner release latch (C), swing the front of the waste toner assembly away from the printer, Previous
and remove.
Next
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4. Remove the two screws (D) on the bottom and one screw higher up (E).
5. Press the locking tab (F).
F
E D
6. Lift the rear of the left cover out, and rotate it out of position. Previous
Note: It will not come completely off with the front cover locked.
Next
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7. With a flatblade screwdriver, turn the camshaft counterclockwise until the door unlocks.
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Printhead verification
You can verify that the printhead is the failing FRU by following this procedure:
1. Turn the printer off, and remove the power cord from the outlet. Remove all cords and cables from the Next
printer before beginning.
2. Locate the printer on a corner of a work area so the front and back can be accessed.
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Next
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4. Carefully unplug the printhead ribbon (B) and the mirror motor cables (C) from the system board, and Previous
carefully connect the printhead ribbon and mirror motor cables from the new printhead into the system
board. It is important to position the laser in the printhead down into the packaging as shown.
Note: Use the packaging that came with the printhead FRU to prop the printhead up.
Next
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5. Connect the power cord to the outlet and to the printer. Reconnect any cords.
6. Enter the Diagnostics menu (press and hold buttons 3 and 6, turn on the printer, and release the buttons
when the progress bar displays.)
7. Perform the Mirror Motor Test:
a. Select PRINTHEAD TESTS.
b. Select Mirror Motor Test.
The panel displays Motor Running.
At the end of the test, the panel displays either Pass or Fail.
• If the test fails, replace the system board.
• If the test passes, perform the Servo Laser Test in step 8.
8. Perform the Servo Laser Test:
a. Press or to go back to the PRINTHEAD TESTS menu.
b. Select Servo Laser Test.
The panel displays Servo Laser Test—Motor Running….
At the end of the test, the panel displays either Pass or Fail.
• If the test fails, replace the system board.
• If the test passes, install the printhead FRU.
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Paper Jams
Error jam locations
The following illustration shows the location and error codes generated for specific paper jams and the Next
corresponding locations of these jams.
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CAUTION—HOT SURFACE
The fuser and the inside of the printer near the fuser may be hot. Wait for the fuser to cool
before clearing jams from this area. Next
By carefully selecting papers and specialty media (see “Paper guidelines” on page 1-14) and loading it
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properly, you should be able to avoid most jams. If jams do occur, follow the steps outlined below.
To resolve the jam messages, you must clear the entire paper path, and press or touch to clear the
message and resume printing. The printer prints a new copy of the page that jammed if Jam Recovery is set to
On or Auto; however, the Auto setting does not guarantee the page will print.
Note: Jam recovery is set to Auto by default. When jam recovery is set to Auto, the memory that holds the
image of a page may be re-used after the page is printed but before it has successfully exited the printer if that
memory is needed for another use. Therefore, a jammed page may or may not be reprinted, depending on the
overall memory usage in the printer.
Avoiding jams
If paper jams behind the inner door, but not under the photoconductor units, 200.xx Paper jam appears.
Note: To avoid overexposing the photoconductor units, do not leave the front door open longer than 10
minutes.
Next
1. Open the front door.
2. Pull the jammed paper up and out to remove it from behind the toner cartridge area.
Note: Make sure all paper fragments are removed. Go Back
If paper jams under the photoconductor units, 200.xx Paper jam or 201.xx Paper jam may appear.
Next
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4. Remove the jammed paper, and then replace each photoconductor unit.
5. Close the front door.
6. Press or touch .
If paper is jammed under the fuser or the top cover, 201.xx Paper jam appears.
1. Open the front door, and then open the top cover.
Warning: Potential Damage: To avoid overexposing the photoconductor units, do not leave the front
door open longer than 10 minutes.
b. If paper is not visible, turn the screws on the fuser unit to the left.
Next
3. Close the top cover, and then close the front door.
4. Press or touch .
If paper is jammed both under the fuser unit and in the slot behind the fuser unit, 202.xx Paper jam appears.
1. If the paper is visible in the standard exit bin, grasp the paper and pull it away from the bin.
2. Open the front door, and then open the top cover.
3. Grasp the paper on each side, and pull it forward.
If the paper is jammed behind the fuser, you will need to remove the fuser unit. Previous
a. Turn the screws on the fuser unit to the left.
Next
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c. Pull the paper gently out of the printer or up toward the standard exit bin to remove it.
d. Place the fuser unit back into the printer, and turn the screws to the right to fasten the fuser unit
securely.
4. Close the top cover, and then close the front door.
5. Press or touch .
If paper is jammed under the rollers near the fuser, or in the standard exit bin 203.xx Paper jam appears.
1. Grasp the paper that is visible in the standard exit bin, and pull it away from the bin.
Next
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2. Open the front door, and then open the top cover.
3. Grasp the paper on each side, and pull it out gently.
4. Close the top cover, and then close the front door.
5. Press or touch .
If paper is jammed between the front door and tray 1, 230.xx Paper jam appears.
1. Remove tray 1.
2. Open the front door.
3. Pull straight up to remove the jammed paper.
If paper is jammed in Tray 1, 241.xx Paper jam appears. If paper is jammed in any of the optional trays, 24x.xx
Paper jam appears.
• If the jammed paper is located in tray 1, follow these steps to remove the paper from tray 1.
Next
1. Open tray 1, and pull the jammed pages straight up and out.
2. If the jam is located in front of the tray, pull the jammed pages up and out.
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3. After removing the tray, the front door may need to be opened to access the jam.
4. Close tray 1.
5. Press or touch .
• If the jammed pages are located in one of the optional trays, follow the appropriate steps below to remove
the pages from an optional tray.
1. Open the specified optional tray, and pull the jammed pages out as illustrated.
2. After removing the tray, the tray above may need to be opened to access the jam.
3. Close the specified optional tray.
4. Press or touch .
1. Press the paper release lever, and then remove the jammed pages from the multipurpose tray.
Next
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Previous
Theory of operation
Paper path
Next
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System board
The system board provides the intelligence of the printer. Command and control signals originate in the system
card that make print media travel possible. The system card controls the timing of the print media during the
printing so the media arrives at certain positions in the print process at certain times. Next
Paper tray
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Houses the print media.
Picks the print media from the paper tray. The paper pick mechanism contains the paper pick (input) sensor and
the multifunction transparency sensor.
The bump aligner roll advances the print media onto the transfer belt and corrects any media skew as it comes
out of the paper trays or MPF.
Transfer belt
The transfer rolls (located inside the transfer belt unit) are an integral part of the electrophotographic process,
and the transfer belt advances the print media through the printer.
Fuser
The fuser bonds toner to the print media and advances the print media through the last portion of the paper path.
The paper exit sensor is also located in the fuser, and a flag is present on all fusers that activates the bin full
sensors on network model printers.
Duplex
The duplex function is built into the front access door and uses a two-pass method for rerouting the paper down
and back through the paper path for a second time. To accomplish the two-pass method, the paper is fed
partially out of the printer and is then reversed back into the printer.
The print media is picked from the input source and fed to the bump aligner roll. The media movement is
detected by a sensor located in the paper pick mechanism. It does not matter where the media comes from
(Tray 1, Tray 2, or, the MPF); it will enter the electrophotographic process at the bump aligner drive. The bump
aligner motor drives the bump aligner roll which feeds the paper to the transfer belt.
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500-sheet assembly Bump aligner roll
pick tire
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Pick tire Backup aligner roll
Once the paper is fed onto the transfer belt, the photoconductor drums in conjunction with the transfer belt pull Previous
the print media through the paper path.
Next
Photoconductor Go Back
drums
Transfer belt
Once the print media exits the transfer belt, it enters the fuser where heat and pressure are applied to bond the Previous
toner permanently to the media. The fuser rollers continue to turn and pull the print media through the paper
path until it reaches the exit drive roll. The exit drive roll pulls the print media from the fuser rollers and delivers it
to the fuser output drive roll. Once the print media reaches the fuser output drive roll, the roller pushes the print
media into the output bin.
Fuser output Fuser exit drive roll Next
drive roll
Paper exit flag Fuser backup roll
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Fuser exit
idler roll
Fuser hot roll
If the page is to be duplexed, the fuser output drive roll continues to pull the media until it clears the paper exit Previous
flag and then reverses the rotation of the roller in order to pull the media back into the printer duplex assembly.
The media is then routed down through the duplex path until it reaches the bump aligner roll. Once in this
position, it enters the EP path for the second time.
Fuser output
drive roll Next
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The paper exit flag serves two purposes. When it triggers the paper exit sensor, it serves as a one-way gate for
the media when it is exiting the printer to the output bin and also serves as a one-way gate when the media is
entering back into the printer for a duplex print. In other words, it diverts the print media's path, directing it to
either the output bin or the duplex paper path.
In order for the print media to move through the paper path, there are several drive motors that supply the
mechanical power to the rollers discussed previously. The drives for these components are illustrated and
discussed in the following paragraphs.
When printing from Tray 1 or Tray 2, the paper pick motor drives the paper pick gears which causes the pick
roller to turn. During an MPF print, the paper pick motor drives the swing arm assembly for the MPF and causes Go Back
the MPF paper pick roller to turn.
Swing arm
bracket
(C52x)
Paper pick
mechanism gears
The power to turn the bump aligner roll is supplied from the bump aligner motor. The motor drives a set of bump
aligner gears which causes the bump aligner roll to turn.
Bump aligner roll Bump aligner gears Bump aligner gears
Next
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Note: If this motor is stalling or causing waste toner box full messages, the vertical auger mechanism might be
causing the problem.
The photoconductor units (four) and toner cartridges (four) receive drive power from the EP drive assembly
motors. The top cartridge motor 1 on the EP drive assembly provides drive to the top two photoconductor units
and toner cartridges (yellow and cyan). Likewise, the bottom cartridge motor 2 drives the two bottom
photoconductor units and toner cartridges. When the printer's top access door is open, the couplers for the toner
cartridges and photoconductor units disengage. Next
Outside
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Fuser motor
Cartridge motor 1
Inside
Photoconductor
couplers
Toner
cartridge
couplers
The transfer belt unit receives drive from a motor located on the EP drive assembly. When the top access door
is open, the coupler for the transfer belt disengages.
Outside
Inside Next
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Coupler
Transfer belt motor
Fuser drive
The fuser drive (motor) is built into the fuser assembly and drives the fuser rollers to turn.
The duplex drive is driven by the MPF/duplex motor through the MPF/duplex gear. Drive is provided to three
drive shafts in the duplex unit by a belt that is driven by the MPF/duplex motor. The drive shafts move the print
media through the duplex unit during printing.
Sensors are strategically placed in the printer to ensure that the print media is making it to specific points within
a given time in the electrophotographic process. There are two paper flags: one at the bottom of the machine Go Back
(paper pick) to detect input paper, including duplex second side, from all sources and one at the top (paper exit)
to detect paper movement beyond the fuser. The flags are similar in design, in that a mechanical arm is moved
by the media to interrupt an optical sensor; both are normally blocked when no media is present. There is also a
multifunction transparency sensor that detects if: 1) tray 1 is present, 2) narrow media is being used, and 3) the
media is a transparency. The sensor works for tray 1, tray 2 (500-sheet option), and the MPF.
Input sensor
The paper exit/duplex sensor flag detects movement in two directions: as the paper exits the fuser and as it is
retracted from the exit tray back into the duplex path. Each sheet must be driven past the fuser exit flag and
allowed to fall before being turned around and starting the duplex path. If the print media activates the paper exit
flag for too long, or the print media doesn't reach the paper exit flag within a given time, a paper jam error will be
posted. Next
Main components
Next
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Fuser System
board
High voltage
power supply Printhead
Developer (toner)
cartridge
Transfer belt
Photoconductor
belt
System board
The system board is the brain of the printer. During the print process, an image is sent from a computer to the
system board. The raster image processor (RIP) portion of the system card converts the data into a raster image
and feeds this data along with control information to the printhead.
Printhead assembly
The printhead receives control and image data from the system card (RIP). Through the use of a laser unit, the
printhead irradiates the photoconductor drum with light and creates an invisible image called a latent or
electrostatic image.
Photoconductor unit
The photoconductor unit consists primarily of a charge roll and the photoconductor drum. The charge roll
charges the surface of the photoconductor drum to prepare it for the latent image “drawn” by the laser. Once the
photoconductor drum has been written to by the laser, it is responsible for picking up toner from the cartridge
developer roller and then transferring the image to the print media.
Toner cartridge
This unit consists primarily of the developer roll and the toner adder roll. The primary function of this unit is to
supply charge toner to the photoconductor unit for transfer onto the print media. The toner adheres to the
electrostatic image on the surface of the photoconductor drum which is then transferred to the print media.
Fuser
The fuser assembly uses heat and pressure to fuse the toner image onto the print media.
Charging Previous
The primary component of the charging process is the high voltage power supply. The following provides
information that covers the mechanical transfer of the high voltage through a set of springs to each
subcomponent of the charging process.
The following illustration shows the circuit path that allows high voltage current to flow from the HVPS to the
charge roll contact on the photoconductor unit. It is essential that the contact springs are properly touching to Go Back
provide a good flow. If not, print quality problems will occur.
High voltage
power supply
High voltage
contact path
The following illustration shows the circuit path that allows high voltage current to flow from the HVPS to the
photoconductor drum contact on the photoconductor unit. It is essential that the contact springs are properly
touching to provide a good flow. If not, print quality problems will occur.
High voltage
power supply
High voltage
contact path
The following illustration shows the circuit path that allows high voltage current to flow from the HVPS to the
toner cartridge. The toner cartridge contains three parts that are provided high voltage from the HVPS. These
three parts are: the doctor blade, the developer roll, and the toner adder roll (TAR). It is essential that the contact
springs are properly touching to provide a good flow. If not, print quality problems will occur.
Next
High voltage Cleaner blade high
power supply voltage contact path
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The transfer belt houses four transfer rollers that provide image transfer from the photoconductor drum to the
print media. The transfer belt receives its high voltage charge through spring contacts located on the transfer
contact assembly as shown in the following illustration. For the sake of simplicity, only one of the roller's high
voltage paths is shown. This path is typical for the other three rollers as well.
Next
Transfer belt high
voltage path
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Exposing Previous
The main components in the exposure process are the system card, the printhead and the photoconductor unit.
The following illustration depicts a typical data path for a single color exposure.
Data is received from a computer into a port on the system card. The system card's RIP function converts this
data into raster information which is fed to the printhead along with other control data. The data is converted by Next
the printhead laser into light energy data that is directed to the light sensitive photoconductor unit.
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System card
Printhead
Photoconductor
unit
Developing Previous
The two primary components of the developing process are the photoconductor unit and the toner cartridge. The
toner cartridge contains a toner adder roll, developer roll and toner. Toner is advanced toward the toner adder
roll by three paddle assemblies. The advanced toner clings to the electrically charged toner adder roll. The toner
on the toner adder roll is then electrically attracted to the developer roll because of the difference in electrical
Next
charge between the toner adder roll and the developer roll. The toner uniformly coats the developer roll with help
from the doctor blade and is introduced to the electrostatic image on the photoconductor drum. The toner then
transfers to the photoconductor drum.
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Photoconductor unit Developer cartridge
Photoconductor
drum
Developer roll
Toner add roll Paddles
(TAR)
Transferring Previous
After the toner is attracted to the photoconductor drum, the image is ready for transfer onto the print media. The
print media is advanced in the paper path onto the transfer belt and is carried along the belt underneath each
photoconductor unit. The charged transfer roll(s) located inside the transfer belt pulls the image from the
photoconductor drum to the print media. This is a direct transfer method.
Next
The main function of the transfer belt is to provide transport for the print media. Toner is not transferred directly
to the belt during the print process.
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Photoconductor unit
Photoconductor
drum
Transfer roll
Fusing Previous
After the image has been transferred onto the print media, it is ready for fusing. The print media is transported
into the fuser where the hot roll and backup roll use a combination of high heat and pressure to melt and press
the toner to the media.
Next
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Backup roll
Hot roll
Cleaning Previous
The transfer belt and photoconductor drum are cleaned at the end of the electrophotographic process cycle. The
transfer belt surface is cleaned as it rotates past a cleaning blade and shaft located inside the transfer belt
assembly. Any waste toner that is scraped off of the belt is collected in the waste toner container located next to
the belt inside the transfer belt unit.
Next
Transfer belt
cleaning blade
5 V interlock switch
An interlock switch (A) triggered by the front access door disables the +5 V output to the printhead which turns
off the laser. Next
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24 V interlock switch
The 24 V interlock switch is located at the front-right side of the machine when you open the front door. Opening
the front door disengages the 24 V interlock switch and cuts the 24 V supply to the system board, HVPS,
motors, and fuser. Closing the front door triggers a switch that initializes the motor.
When the 24 V switch opens, the normally open side of the switch is activated which signals the system board to
disable a +24 V power supply output, turning off all high voltage supplies, the bump/align motor, the duplex
motor and the fuser motor for safety considerations.
Warning: Never poke or force cover the switch while fixing the machine. This can harm the person and
machine.
Previous
Next
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CAUTION—POTENTIAL INJURY:
The printer weight is greater than 54 lbs (24.5kg), and requires two or more trained personnel to
lift safety. Next
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Safety information
• The safety of this product is based on testing and approvals of the original design and specific
components. The manufacturer is not responsible for safety in the event of use of unauthorized
replacement parts.
• The maintenance information for this product has been prepared for use by a professional service person
and is not intended to be used by others.
• CAUTION: When you see this symbol, there is a danger from hazardous voltage in the area of the
product where you are working. Unplug the product before you begin, or use caution if the product
must receive power in order to perform the task.
• Volatile memory—This device utilizes standard Random Access Memory (RAM) to temporarily buffer
user data during simple print and copy jobs.
• Non-volatile memory—This device may utilize two forms of non-volatile memory: EEPROM and NAND
(flash memory). Both types are used to store the operating system, device settings, network information,
scanner and bookmark settings, and embedded solutions.
• Hard disk memory—Some devices have a hard disk drive installed. The printer hard disk is designed for
device-specific functionality and cannot be used for long term storage for data that is not print-related. The
hard disk does not provide the capability for users to extract information, create folders, create disk or
network file shares, or FTP information directly from a client device. The hard disk can retain buffered user
data from complex scan, print, copy, and fax jobs, as well as form data, and font data.
To erase non volatile memory see “Configuration menu (CONFIG MENU)” on page 3-27 item pertaining to
this.
To erase the printer hard disk see “Configuration menu (CONFIG MENU)” on page 3-27 item pertaining to
this.
The printer operator panel and RIP/controller board contain NVRAM. After removing the old part the part must
be returned to your second level support.
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Handling ESD-sensitive parts
Warning: Read the following before handling electronic parts.
Many electronic products use parts that are known to be sensitive to electrostatic discharge (ESD). To prevent
Next
damage to ESD-sensitive parts, follow the instructions below in addition to all the usual precautions, such as
turning off power before removing electronic cards:
• Keep the ESD-sensitive part in its original shipping container (a special “ESD bag”) until you are Go Back
ready to install the part in the printer.
• Make the fewest possible movements with your body to prevent an increase of static electricity from
clothing fibers, carpets, and furniture.
• Put the ESD wrist strap on your wrist. Connect the wrist band to the system ground point. This
discharges any static electricity in your body to the printer.
• Hold the ESD-sensitive part by its edge connector shroud (cover); do not touch its pins.
• If you need to put down the ESD-sensitive part for any reason, first put it into its special bag.
• Printer covers and metal tables are electrical grounds. They increase the risk of damage, because
they make a discharge path from your body through the ESD-sensitive part. (Large metal objects can
be discharge paths without being grounded.)
• Prevent ESD-sensitive parts from being accidentally touched by other personnel. Install printer
covers when you are not working on the printer, and do not put unprotected ESD-sensitive parts on a
table.
• If possible, keep all ESD-sensitive parts in a grounded metal cabinet (case).
• Be extra careful in working with ESD-sensitive parts when cold-weather heating is used, because low
humidity increases static electricity.
Transportation/storage
Use the specified carton whenever moving or storing the photoconductor unit.
Handling
• The optical photoconductor roller in the photoconductor unit exhibits the greatest light fatigue after being
exposed to strong light over an extended period of time. Never expose it to direct sunlight. Cover the
photoconductor unit when you remove it from the printer.
• Use care not to contaminate the surface of the optical photoconductor roller with an oil-based solvent,
fingerprints, and other foreign matter.
• Do not scratch the surface of the optical photoconductor roller.
Any part where the mounting screws are used to meet a printer alignment set at the factory must not be
removed, disassembled, or adjusted.
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Screw and retainer identification table
The following table contains screw types and retainers, locations, and quantities necessary to service the
printer. Pay careful attention to each screw type location when doing removals. You must install the correct
screw type in each location during reassembly. Next
Sizes are as close to actual as possible, as long as the printout is not scaled or resized.
Next
88A0312 Plastite M2.9 L6 Backup springs to reference edge plate assembly 2 Go Back
PAN
Cartridge cooling fan duct to top cover 2
Cartridge left guide assembly to leftside plate assembly (exterior side of plate 4
assembly)
Cover mount to rightside plate 3
Display detent spring to display back bezel 1
Door straps to front access door cover 2
Door bracket to front access door cover 2
Duplex entry guide to front access door cover 4
Exterior screws attaching cover bracket to front access door cover 2
Front cover bracket to front access door cover 4
Ground terminal/operator panel card to top access door cover CBM 1
Lower frame support to lower left frame assembly 2
Operator panel card to top access door cover CBM 3
Option locator to rightside plate 1
88A0313 Plastite M2.9 L8 Contacts assembly to leftside cartridge guide 1
PAN
Cover bracket to front access door cover 2
Cover pivot to swingout frame 3
HVPS to transfer contact assembly 3
HVPS to leftside cartridge guide assembly 2
Interior screws attaching cover bracket to front access door cover 2
88A0323 M3.5X1.34 Panhead Duplex upper guide to top access door cover CBM 9
8L
Ground strap/contact to front door frame 1
Lower right frame to right side plate 3
Pick assembly to lower plate 4
Secures reference edge assembly to door assembly 2
Static brush bracket to top access door cover CBM 1
Torque tube cover to front door frame 6
88A0324 M3.5X1.34 PANHD EP drive to rightside plate 2
10L
Secures door cap to door assembly 1
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Adjustments
Printhead alignment
Overview Next
When aligning the printhead, it is important to keep in mind that the printhead mounting screws should be initially
loose enough to just hold the printhead in the printer. This allows the pages to be printed that will be used to Go Back
align the black plane to the printer frame and also allows skew adjustment with the printhead alignment screw.
Once the black skew is adjusted, the mounting screws are fully tightened.
There is one printhead that houses the four color planes. The black plane is aligned to the printer, and the color
planes are internally aligned to black. Electrical alignment is done to fine tune the alignment of the color planes
to the black plane once the printhead is installed and skew is adjusted.
The first step in aligning the printhead is to loosen the printhead mounting screws, and to set the skew for black.
Note: If you need to replace the printhead, see “Printhead removal, installation, and adjustment” on
page 4-153.
Skew (black)
To avoid damaging the photoconductor drum, place the transfer module with the photoconductor
units on a clean surface. Never expose the photoconductor units to light for a prolonged period of
time. You can place a clean, dry cloth over the transfer module and photoconductor units until they
are required.
B C
4. Loosen the printhead mounting screws in the following order: D1, D2, and D3. Previous
D1
Next
Go Back
D2 D3
5. Remove the printhead alignment screw cover (E).
6. Reinstall the transfer module with the photoconductor units still attached.
7. Reconnect the transfer module cable.
8. Replace the toner cartridges.
9. Close the top access door.
10. Close the front access door.
11. Plug the electrical cord into the printer.
12. Plug the electrical cord into the outlet.
Go Back
f. Adjust the printhead alignment screw (G) to change the skew and straighten the image on the Previous
printout.
Next
Go Back
If the top right alignment marks are lower than the top left alignment marks, rotate the alignment
screw counterclockwise a full revolution, and print the Quick Test page. Repeat adjusting the screw
and printing the Quick Test until the top alignment marks are the same distance from the top of the
media.
Note: One rotation of the printhead alignment screw equals approximately 0.5 millimeter movement
of the top edge print alignment marks.
g. When the top right and top left alignment marks are both showing and are even on the page, the
skew is aligned.
Straight Skewed
H2 H3
15. Replace the printhead alignment screw cover.
16. Replace the toner cartridges.
17. Reinstall the transfer module and the photoconductor units.
18. Connect the transfer module cable.
Top Margin
1. Reconnect the power cord to the electrical outlet, but do not turn on the printer yet.
2. Enter Diagnostic mode (press and hold buttons 3 and 6, turn on the printer, and release the buttons when
Next
the clock graphic displays).
3. Select REGISTRATION, and press .
4. Select Quick Test, and press or use the last Quick Test you used to adjust skew.
Go Back
Bottom Margin
Go Back
Next
Go Back
8. Determine the line under Fine Adjustment that is closest. If the value is beyond the Fine Adjustment scale, Previous
use either of the Coarse Adjustment scales.
Next
Go Back
9. Enter the number determined from the Fine Adjustment scale or the Coarse Adjustment scales on the part
of the page for the “T” value. The current value is automatically entered on the sheet. At this point, it should
be zero.
-18 -18
10. Enter the “New Cyan T value” on the operator panel using the left and right arrows, and press to save
the value.
11. Reprint the Quick Test, and evaluate whether you are at zero changes.
12. Repeat this process for skew (Z). Don't forget to subtract the T value and add the current cyan Z value to Previous
obtain the new skew (Z) value.
An example is shown below:
Next
13. Continue to follow the directions on the bottom of the first page to find the Cyan Top Margin (T), the
Skew (Z), and on the second page of the Quick Test page, the Left Margin (L), Right Margin (R), and
Bow (P).
Skew (black)
To avoid damaging the photoconductor drum, place the transfer module with the photoconductor
units on a clean surface. Never expose the photoconductor units to light for a prolonged period of
time. You can place a clean, dry cloth over the transfer module and photoconductor units until they
are required.
B C
4. Loosen the printhead mounting screws in the following order: D1, D2, and D3.
D1
D2 D3
Next
Go Back
6. Reinstall the transfer module with the photoconductor units still attached.
7. Reconnect the transfer module cable.
8. Replace the toner cartridges.
9. Close the top access door.
10. Close the front access door.
11. Plug the electrical cord into the printer.
12. Plug the electrical cord into the outlet.
13. Align the printhead skew for black.
a. Enter the Diagnostic menu (turn off the printer, press and hold buttons 3 and 6, turn on the printer,
and release the buttons when the clock graphic displays).
b. Touch REGISTRATION from the DIAGNOSTICS menu, and then touch Settings.
c. Touch Skew.
d. Set the Skew to zero.
e. Scroll down and touch Quick Test. A page similar to this one prints: Previous
Next
Go Back
f. Adjust the printhead alignment screw (G) to change the skew and straighten the image on the Previous
printout.
Next
Go Back
If the top right alignment marks are lower than the top left alignment marks, rotate the alignment
screw counterclockwise a full revolution, and print the Quick Test page. Repeat adjusting the screw
and printing the Quick Test until the top alignment marks are the same distance from the top of the
media.
Note: One rotation of the printhead alignment screw equals approximately 0.5 millimeter movement
of the top edge print alignment marks.
g. When the top right and top left alignment marks are both showing and are even on the page, the
skew is aligned.
Straight Skewed
H2 H3
15. Replace the printhead alignment screw cover.
16. Replace the toner cartridges.
17. Reinstall the transfer module and the photoconductor units.
18. Connect the transfer module cable.
Top Margin
1. Reconnect the power cord to the electrical outlet, but do not turn on the printer yet.
2. Enter Diagnostic mode (press and hold buttons 3 and 6, turn on the printer, and release the buttons when
Next
the clock graphic displays).
3. Touch REGISTRATION.
4. Touch Quick Test or use the last Quick Test you used to adjust skew.
Go Back
Bottom Margin
Go Back
Next
Go Back
8. Determine the line under Fine Adjustment that is closest. If the value is beyond the Fine Adjustment scale, Previous
use either of the Coarse Adjustment scales.
Next
Go Back
9. Enter the number determined from the Fine Adjustment scale or the Coarse Adjustment scales on the part
of the page for the “T” value. The current value is automatically entered on the sheet. At this point, it should
be zero.
-18 -18
10. Enter the “New Cyan T value” on the operator panel and touch to save the value.
11. Reprint the Quick Test, and evaluate whether you are at zero changes.
12. Repeat this process for skew (Z). Don't forget to subtract the T value and add the current cyan Z value to Previous
obtain the new skew (Z) value.
An example is shown below:
Next
13. Continue to follow the directions on the bottom of the first page to find the Cyan Top Margin (T), the
Skew (Z), and on the second page of the Quick Test page, the Left Margin (L), Right Margin (R), and
Bow (P).
Previous
Printer removal procedures
Precautions to take before maintenance work
Do not implement any operation, removal, or modification and so on, which is not presented in this manual. Next
1. Turn the printer power off and unplug the power cable from the outlet prior to starting
removals or checks. Go Back
2. Prior to starting any repairs, read and understand the warnings in this manual.
• High temperature
• High voltage
• Laser radiation
3. Confirm the direction of all parts and screw lengths during removal/replacement.
4. Utilize the proper cleaning procedures/solvents during maintenance.
5. Confirm that all parts and covers are properly installed and assembled prior to starting the print test.
Previous
Cover removals
Front access cover assembly removal
See Front access door cover assembly for the part number for the models you need on page 7-3. Next
B C
5. Looking down at the keyed end of the restraint (D), twist the end clockwise, slide the restraint upward Previous
through the slit (E), and slip the end of the restraint through the keyed hole (F). Repeat for the other side.
Next
Go Back
D F E
Next
Go Back
G H
9. Remove the front access cover assembly.
C
B A
7. Remove the screws (D) from the rear left cover. Previous
Next
Go Back
8. Unsnap the right cover from the top cover, then lift and remove the left cover and rear left cover together.
Note: Because the paper tray dust cover is loose at this point, set it aside.
Note: If you are removing the left cover to access another part, leave the left cover and the rear left cover
attached, and you are done. If you need to replace the left cover FRU, continue with the next step to remove the
separate rear left cover FRU.
9. Separate the left cover and rear left cover by sliding the left rear cover as shown to disengage the latch (E). Previous
Next
Go Back
See operator panel assembly with card on page 7-3 for the part number.
Warning: This part might contain customer confidential information. See “Data Security Notice” on page 4-1
for more details. After removing this part, return it to your next level of support so any data can be
Next
removed. If the customer requests to keep the part, they must sign a confirmation of memory device
retention form.
Warning: When replacing any one of the following components: Go Back
• Operator panel assembly
• System board
• Top access cover assembly
Only replace one component at a time. Replace the required component, and perform a POR before
replacing a second component listed above. If this procedure is not followed, the printer will be
rendered inoperable.
1. Remove the top access cover assembly. See “Top access cover assembly removal” on page 4-54.
2. Turn the top access cover assembly over.
3. Remove the eight screws (A) securing the position guide cover.
4. Pull open the UICC connector and disconnect the UICC cable. Previous
Next
Go Back
Installation note: Make sure the contact pins on the cable are facing up when reconnecting the operator
panel cable to the connector.
5. Flip open the LCD connector and disconnect the LCD cable.
6. Remove the six screws (B) securing the operator panel card, then remove the operator panel card. Previous
Next
Go Back
B
7. Remove the three screws (C) securing the LCD bracket, then remove the LCD bracket.
C
8. Remove the operator panel LCD together with the LCD protector.
9. Remove the operator panel LCD from the LCD protector. Previous
Note: The operator panel assembly consist of the operator panel LCD and the operator panel card.
Next
Go Back
See operator panel assembly with card on page 7-3 for the part number.
Warning: This part might contain customer confidential information. See “Data Security Notice” on page 4-1
for more details. After removing this part, return it to your next level of support so any data can be
removed. If the customer requests to keep the part, they must sign a confirmation of memory device
retention form.
Warning: When replacing any one of the following components:
• Operator panel assembly
• System board
• Top access cover assembly
Only replace one component at a time. Replace the required component, and perform a POR before
replacing a second component listed above. If this procedure is not followed, the printer will be
rendered inoperable.
1. Remove the top access cover assembly. See “Top access cover assembly removal” on page 4-54.
2. Turn the top access cover assembly over.
3. Remove the eight screws (A) securing the position guide cover. Previous
Next
Go Back
A
4. Pull open the operator panel connector and disconnect the operator panel cable.
Installation note: Make sure the contact pins on the cable are facing up when reconnecting the operator
panel cable to the connector.
5. Flip open the LCD connector and disconnect the LCD cable. Previous
Next
Go Back
6. Remove the five screws (B) securing the operator panel card, then remove the operator panel card.
7. Remove the four screws (C) securing the LCD bracket. Previous
Next
Go Back
C
8. Remove the LCD bracket and ground connector.
9. Remove the operator panel LCD.
See operator panel bezel on page 7-3 for the part number.
Go Back
1. Remove the top access door cover assembly. See “Top access cover assembly removal” on
page 4-54.
2. Turn the top access cover assembly over.
3. Remove the eight screws (A) securing the position guide cover.
4. Remove the six screws (B) securing the operator panel card, then remove the operator panel card. Previous
Next
Go Back
B
5. Unsnap the small latches securing the buttons, then remove them.
1. Remove the top access door cover assembly. See “Top access cover assembly removal” on
page 4-54.
2. Turn the top access cover assembly over.
3. Remove the eight screws (A) securing the position guide cover. Next
Go Back
A
4. Remove the five screws (B) securing the operator panel card, then remove the operator panel card.
5. Unsnap the small latches securing the buttons, then remove them. Previous
Next
Go Back
See “Output bin extension cover” on page 7-3 for the part number.
Go Back
See “Dust cover assembly” on page 7-3 for the part number.
Go Back
Installation notes:
See “Rear frame cover” on page 7-3 for the part number.
3. Lift up on the rear frame cover to remove it from the back of the printer.
Go Back
1. Remove the left cover. See “Left cover removal” on page 4-31.
2. Separate the left cover and rear left cover by sliding the left rear cover as shown to disengage the latch (A).
Next
Go Back
See “Rear right cover” on page 7-3 for the part number.
1. Remove the right cover. See “Right cover removal” on page 4-51.
2. Press the two tabs (A) to separate the right cover from the rear right cover. Next
Go Back
Next
Go Back
Next
Go Back
9. Lift the bottom of the cover out, pull up at the points shown, and remove the cover.
Note: There are posts on the top access cover and the paper tray dust cover (D). When you reinstall, be
sure to verify that the top access cover opens correctly and that the paper tray dust cover swings properly.
D E
Note: If you are removing the right cover to access another part, leave the right cover and the rear right cover
attached, and you are done. If you need to replace the right cover FRU, continue with the next step to remove
the separate rear right cover FRU.
11. Press the two tabs (F) to separate the right cover from the rear right cover. Previous
Next
Go Back
See “Top access cover assembly, 2.3 inch” on page 7-3 for the part number.
1. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47.
2. Disconnect the cable connectors at operator panel connector (A), JFMUSB1 (B), and JBIN1 (C) on the
system board.
C A B
3. Remove the rear upper cover. See “Rear upper cover removal” on page 4-50.
4. Open the front access cover and top access cover
5. Remove the two screws (D), one on either side of the printer, that connects the links.
6. Disconnect the JOPP1 and JFMUSB1 cables (E) from their connectors. Previous
Next
Go Back
E
7. Take out the JOPP1, and JFMUSB1 cables (F).
Next
Go Back
9. Push down on the rear-right side of the top cover (G) then pull out the right cover (H) lightly to release the
top cover from the hinge (I).
H G I
Installation note: When reinstalling the top access cover assembly, guide the speaker and bin full sensor
cables through the two holes (J) on the rear of the top cover first. Next
Go Back
C B A D
5. Remove the fuser AC cable from the cable restraint (D). Previous
Next
Go Back
E E
Note: If you are removing the top cover assembly of the C748x model, remove the two screws (F) to detach the Previous
speaker mount. The speaker mount is not included as part of the top access cover assembly FRU.
Next
Go Back
F
7. Lift and remove the top cover assembly.
Installation note: Make sure to push down on the cam after reinstalling the top cover assembly.
Previous
Printer removals
5 V interlock switch cable removal
See “5 V interlock switch” on page 7-9 for the part number. Next
1. Remove the EP drive assembly. See “Electrophotographic (EP) drive assembly removal” on
page 4-98. Go Back
2. Disconnect the connector at JINT1 (A) on the system board.
3. Open the front access door cover, and remove the screw (B). Previous
Next
Go Back
B
4. Remove the cable from the two cable retainers (C).
5. Remove the 5 V interlock switch and bracket from the printer. Previous
6. Remove the screw (D), and remove the 5 V interlock switch cable from the bracket.
Next
Go Back
See “24 V interlock switch” on page 7-9 for the part number.
1. Remove the LVPS. See “Low-voltage power supply (LVPS) removal” on page 4-127.
2. Disconnect the connector at JCVR1 (A) at system board.
3. Remove the screw (B), and the bracket separates from the 24 V interlock switch. Previous
Next
Go Back
Installation notes:
1. Remove the top access cover assembly. See “Top access cover assembly removal” on page 4-54.
2. Turn the top access cover over, and use a flatblade screwdriver to carefully remove the flag (A).
Next
Go Back
See “Bin full sensor with cable” on page 7-3 for the part number.
1. Remove the top access cover assembly. See “Top access cover assembly removal” on page 4-54.
2. Turn the top access cover over, and press the side of the bin full sensor (A) to snap it loose from the cover.
A
3. Remove the bin full sensor and cable.
1. Remove the top cover. See “Top cover assembly removal” on page 4-58.
2. Turn the top cover over, and remove the two screws (A).
3. Remove the cartridge cooling fan.
Next
Go Back
A
b. Gently pull the cartridge guide, then remove the cartridge guide wheel (B).
CAUTION: Do not pull too hard on the cartridge guide to avoid damage.
Installation note: Gently pull the cartridge guide, then use a long-nosed pliers to hold the cartridge Previous
guide wheel in place when installing a new cartridge wheel.
2 Next
Go Back
Installation note: Inspect carefully if the cartridge guide wheel is seated properly on the cartridge
guide before reinstalling the screw on the cartridge guide.
2. For black:
a. Remove the screw (C) from the lower-most cartridge guide.
b. Gently pull the cartridge guide, then remove the cartridge guide wheel (D). Previous
CAUTION: Do not pull too hard on the cartridge guide to avoid damage.
Next
Go Back
Installation note: Gently pull the cartridge guide, then use a long-nosed pliers to hold the cartridge
guide wheel in place when installing a new cartridge guide wheel.
Installation note: Inspect carefully if the cartridge guide wheel is seated properly on the cartridge
guide before reinstalling the screw on the cartridge guide.
Go Back
b. Gently pull the cartridge guide, then remove the front (B) or rear (C) cartridge guide wheel.
CAUTION: Do not pull too hard on the cartridge guide to avoid damage.
B C
Note: When replacing either the front or rear cartridge guide wheel, be careful to not let the non-
defective cartridge guide wheel fall off.
Installation note: Gently pull the cartridge guide, then use a long-nosed pliers to hold the cartridge Previous
guide wheel in place when installing a new rear cartridge wheel.
Next
Go Back
Installation note: Make sure to properly align the pins to their proper slot when reinstalling the Previous
cartridge guide wheel. Be careful not to damage or bend the pins.
Next
Go Back
Installation note: Inspect carefully if the cartridge guide wheel is seated properly on the cartridge
guide before reinstalling the screw on the cartridge guide.
Next
Go Back
D
b. Gently pull the cartridge guide, then remove the front (E) or rear (F) cartridge guide wheel.
CAUTION: Do not pull too hard on the cartridge guide to avoid damage.
E F
Note: When replacing either the front or rear cartridge guide wheel, be careful to not let the non- Previous
defective cartridge guide wheel fall off.
Installation note: Inspect carefully if the cartridge guide wheel is seated properly on the cartridge
guide before reinstalling the screw on the cartridge guide.
Next
Cartridge motor 1/fuser cable removal
1. Remove the LVPS. See “Low-voltage power supply (LVPS) removal” on page 4-127.
Go Back
2. Disconnect the connectors in JCARTP1 (A) and JCARTS1 (B) on the system board.
3. Disconnect the connectors from the cartridge motor 1 (C) and the fuser motor (D). Previous
Next
Go Back
4. Disconnect the camshaft cable connector (E) from the motor card, and unwind the two cables.
Next
Go Back
Installation notes:
• Make sure you wrap the camshaft cable around the cartridge motor 1/fuser cable, as shown, to prevent the
cables from interfering with the motors and damaging the cables.
• Note the routing of the cables and the cable retainers.
1. Remove the LVPS. See “Low-voltage power supply (LVPS) removal” on page 4-127.
2. Disconnect the connectors in JCARTP2 (A) and JCARTS2 (B) on the system board.
Next
Go Back
3. Disconnect the connectors from the cartridge motor 2 (C) and cartridge motor 3 (D).
Next
Go Back
Installation note: Pay attention to the routing of the cables and the cable retainers.
Next
Go Back
Next
Go Back
A
2. Turn the printer around, and verify the actuators are in the correct location by looking inside the front of the
printer. The actuators (B) should be visible in the triangular holes in the frame, as shown.
3. Rotate the large COD gear until the stop (C) on the gear is against the housing. Previous
Next
Go Back
C
4. Engage the gears on the left side of the COD.
5. Engage the gears (D) on the right side of the COD. Previous
6. Replace the five screws (E).
Next
Go Back
7. Verify the actuators can be seen by looking inside the printer at the triangular holes, as in step 2.
8. Check to make sure you can rotate the large COD gear from stop to stop.
4. Remove the three screws (B) securing the top three bell crank links. Previous
Next
Go Back
B
5. Remove the bell crank link (C) together with its bell crank spring (D).
C D
a. When installing the bell crank link and spring back to the machine, guide the mounting hole on the
bell crank link to the mounting pin on the cartridge guide (E), and guide one end of the spring onto the
boss rest on the bell crank link and the other end onto the boss rest on the bell crank (F).
b. Make sure the locator pin on the bell crank rests on the locator hole of the bell crank link (G).
Next
Go Back
F E F G
6. Use a prying tool to remove the bell crank.
Note: The bell crank must be replaced due to the damage that can occur to the retention features of this
bell crank.
7. Perform steps 5 and 6 to the other bell crank links and bell cranks, except for the one found at the lower-
most portion of the cartridge guide.
8. Remove the lower-most bell crank spring (H) and bell crank (I). Previous
Next
Go Back
H I
9. Using a spring compression tool (J), align its opening to the rib on the cartridge guide as shown, then push
and hold the spring compression tool into the cartridge contact spring.
Note: Make sure to properly align the opening on the spring compression tool to the rib on the cartridge
guide.
10. Remove the cartridge contacts from the right side of the machine, then release the spring compression Previous
tool.
Note: Pay attention to the color coding of the cartridge contact cables, and the appropriate slots where
each cartridge contact is installed.
Next
Go Back
1 2
Installation notes:
a. Insert the cartridge contact spring into the slot on the cartridge guide.
Previous
b. Position the spring compression tool (K) as shown below and align its opening to the rib on the
cartridge guide, then push and hold the spring compression tool into the cartridge contact spring.
Note: Make sure to properly align the opening on the spring compression tool to the rib on the
cartridge guide.
Next
Go Back
1. Remove the HVPS. See “High-voltage power supply (HVPS) removal” on page 4-123.
2. Remove the charge roll contact springs (A). Be sure to push the springs under the retainers that hold them
in place.
Installation note: Make sure the springs are behind the retainers when installing the new springs. Next
Retainer
Go Back
1. Remove the HVPS. See “High-voltage power supply (HVPS) removal” on page 4-123.
2. Pull out the spring that will be replaced:
• HVPS DB contact spring (A)
• HVPS DR contact spring (B) Next
• HVPS TAR contact spring (C)
B
Go Back
C
Installation note: Refer below for the location of the HVPS DR Contact spring and HVPS DB contact
spring.
1. Open the front access door and remove all the toner cartridges.
2. Remove the screw (A) and the spring cap (B) of the appropriate contact spring.
Next
Go Back
A B
3. Press the lower half (C, D) of the springs, and remove the springs.
C D
Installation notes: When installing, make sure the top half (E) of the spring is under the straight spring (F). This Previous
is typical for both types of springs. Also make sure the bottom half (D,G) of both springs are compressed and
locked by the appropriate locking tabs (H, I).
F E
Next
H
Go Back
G
I
1. Remove the rear upper cover. See “Rear upper cover removal” on page 4-50.
2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47.
3. Disconnect JFAN1 (A).
Next
Go Back
B
5. Remove the cooling fan.
1. Remove the rear upper cover. See “Rear upper cover removal” on page 4-50.
2. Turn the cover over.
3. Squeeze the right side of the filter, and remove it from the tabs (A).
Next
Go Back
B C
5. Looking down at the keyed end of the restraint (D), twist the end clockwise, slide the restraint upward Previous
through the slit (E), and slip the end of the restraint through the keyed hole (F). Repeat for the other side.
Next
Go Back
D F E
7. Remove the two screws on the duplex aligner (G), and then remove the screw (H) securing the duplex Previous
reference edge guide assembly.
Next
Go Back
H G
8. Remove the duplex reference edge guide assembly.
See “EP drive assembly” on page 7-9 for the part number.
6. Disconnect the camshaft/transport cable connector (C), and remove the cable from the cable clamps (D). Previous
Next
Go Back
7. Unwind the camshaft/transport cable and the cartridge 1/fuser cables (E).
Note: Be sure to rewind the camshaft/transport cable around the other cables with about four twists to
keep them from interfering with or being damaged by the motors.
8. Disconnect the cartridge 2/cartridge 3 motor cable (two connectors) (F), and remove the cable from the Previous
cable clamps (G).
Next
Go Back
9. Disconnect the motor drive cable connector (H), and remove the cable from the cable clamps (J).
10. Remove the two screws (K) to remove the motor driver card assembly.
H J
11. Remove the two screws (L) on the inside
Next
Go Back
L M
13. Remove the seven screws (N) securing the EP drive. Previous
Next
Go Back
N N (First)
14. Remove the 5 V interlock switch cable from the restraint (N) on the backside of the EP drive. Previous
Next
Go Back
1. Push the actuator rack all the way to the right (A).
2. Pull the link all the way up (B).
3. Fasten the 5 V interlock cable into the cable retainer (C) on the bottom of the EP drive. Previous
Next
Go Back
4. Align the gear so the first gear tooth (D) of the top cover camshaft meshes with the first two gear teeth (E)
after the flat area in the EP drive actuator rack, and then seat the right side of the top cover camshaft into
the boss (F) on the EP drive.
F
Flat area E
(gap)
5. Hold the drive in place while replacing the first of the seven screws, then continue replacing the rest of the Previous
screws (G).
Next
Go Back
Next
Go Back
8. Wind the camshaft cable (K) around the cartridge 1/fuser cables about four times to make sure they do not
interfere with or are damaged by the fuser motor.
9. Connect the cartridge 1/fuser motor cable (two connectors) (L), and place the cables in the cable
retainers (M).
10. Connect the cartridge 2/cartridge 3 motor cable (two connectors) (N), and make sure the cable is in the Previous
cable clamps (O).
Next
Go Back
O N
11. Hold the motor driver card in place and reinstall the two screws (P) to secure the motor driver card.
12. Connect the three connectors (Q), and secure the cables in the cable clamps (R).
Q
R
P R
13. Reinstall the low-voltage power supply (LVPS).
14. Replace the right and rear covers.
15. Replace the transport belt module and developer units.
16. Replace the cartridges and the fuser.
17. Replace the paper tray.
See the part number for the Front door assembly for the specific model you need on page 7-7.
1. Remove the front access cover assembly. See “Front access cover assembly removal” on page 4-29.
2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47.
Next
3. Remove the LVPS. See “Low-voltage power supply (LVPS) removal” on page 4-127.
4. Disconnect the JTPS1 cable (A) from the system board.
Go Back
5. Release the left and right front door assembly cable springs (B) from the front door assembly.
B B
Next
Go Back
8. Close the front door assembly, and remove the mounting screw (D) and the cap (E).
9. Open the front door assembly, slide it to the right, and remove. You need to press firmly to slide the front Previous
door assembly to the right.
Next
Go Back
Installation note: See “Front door assembly front cable (left) removal” on page 4-111 and “The longer
cable installs on the left side of the printer.” on page 4-114 for proper installation of the cable restraints.
B C
5. Looking down at the keyed end of the restraint (D), twist the end clockwise, slide the restraint upward Previous
through the slit (E), and slip the end of the restraint through the keyed hole (F). Repeat for the other side.
Next
Go Back
D F E
Next
Go Back
10. Remove the end of the cable (J) from the frame. Previous
Next
Go Back
Installation notes:
• Push down on the lever to raise front door locking mechanism and open the camshaft.
B C
5. Looking down at the keyed end of the restraint (D), twist the end clockwise, slide the restraint upward Previous
through the slit (E), and slip the end of the restraint through the keyed hole (F). Repeat for the other side.
Next
Go Back
D F E
6. Remove the right cover. See “Right cover removal” on page 4-51. Previous
7. Close the front access door assembly.
8. Release the spring (G) from the front door assembly.
Note: In order to access the springs, make sure the top access cover is closed.
Next
Go Back
Previous
Installation note: The shorter restraint cable installs on the right side of the printer.
Note: The frame end needs to be wrapped to inside of post for two full turns
Next
Go Back
Fuser removal
See “Fuser assembly, 115 V” on page 7-7, “Fuser assembly, 230 V” on page 7-7, or “Fuser assembly,
100 V” on page 7-7 for the part number.
CAUTION
The fuser can be extremely hot. Use care when handling to avoid burns.
5. Grasp the handles (B), slide the fuser out from the printer. Previous
B
Next
Go Back
Installation note: If you install a new fuser, be sure to reset the fuser counter in the Configuration Menu, and
run the Motor Calibration. To reset the counter and run the calibration:
1. Enter the Configuration Menu. (Turn off the printer, press and hold buttons 2 and 6, turn on the printer, and
release the buttons when the progress bar displays.)
2. Press for the Reset value.
Resetting Fuser Count Value appears.
3. Select Motor Calibration from the CONFIG MENU.
Calibrating displays, and the printer prints several blank pages and then returns to the CONFIG MENU.
4. Select Exit Config Menu.
Go Back
Warning: You will damage the old connector in the process. Be careful not to damage the top cover
assembly.
Go Back
4. Pull the cable through the hole (B) in the top cover assembly, and the notch (C).
Warning: This part might contain customer confidential information. See “Data Security Notice” on page 4-1
for more details. After removing this part, return it to your next level of support so any data can be
removed. If the customer requests to keep the part, they must sign a confirmation of memory device
retention form. Next
1. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47.
2. Remove the two screws (A), and squeeze the connector to disconnect the hard disk from the system
board (B). Go Back
3. Pull the hard disk straight out to pop the hard drive standoffs free of the system board.
See “High-voltage power supply” on page 7-13 for the part number.
1. Remove the left cover. See “Left cover removal” on page 4-31.
2. Remove the six mounting screws (A). Next
Go Back
A
3. Release the locking tab (B) from the front, lower corner of the HVPS.
Next
Go Back
Installation notes:
1. Remove the rear upper cover. See “Rear upper cover removal” on page 4-50.
2. Disconnect the cable connector at JHVPS1 on the system board.
Next
Go Back
See “Left bellcrank assembly, with spring” on page 7-7 for the part number.
1. Remove the left cover. See “Left cover removal” on page 4-31.
2. Remove the C-clip (A). Next
Go Back
See “Low-voltage power supply” on page 7-9 for the part number.
1. Remove the right cover. See “Right cover removal” on page 4-51.
2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47.
Next
3. Disconnect the connector at JLVPS1 connector (A) on the system board.
Go Back
A
4. Remove the five LVPS mounting screws (B).
5. Disconnect the AC fuser cable (C) from the LVPS.
• When installing the new LVPS, make sure the voltage switch (A) is set for the proper value (115 V or
230 V), depending on the country.
Note: Not all LVPS FRUs have a switch. Others are switched automatically.
Next
Go Back
• Install the LVPS, and make sure the AC fuser cable is in the cable guides, and not behind the LVPS.
• Reconnect the AC fuser cable to the LVPS.
• Replace the five LVPS mounting screws.
• Reconnect the cable in connector JLVPS1 on the system board.
1. Remove the right cover. See “Right cover removal” on page 4-51.
2. Disconnect the three cables (A).
3. Remove the two screws (B), and remove the motor driver card.
Next
Go Back
1. Remove the LVPS. See “Low-voltage power supply (LVPS) removal” on page 4-127.
2. Disconnect the connector in JDVR1 (A) on the system board.
Next
Go Back
Installation note: Pay attention to the routing of the cable and the cable retainers.
See the multipurpose feeder/duplex gear and housing kit for the part number.
1. Remove the paper pick mechanism assembly. See “Paper pick mechanism assembly removal” on
page 4-145.
Next
2. Remove the two E-clips (A) from the gears.
Go Back
A
3. Remove the three screws (B).
4. Slide the front gear (C) off.
B C
Next
Go Back
See “MP feeder/duplex drive parts packet” on page 7-7 for the part number.
1. Remove the low-voltage power supply (LVPS). See “Low-voltage power supply (LVPS) removal” on
page 4-127.
Next
2. Remove the multipurpose feeder/duplex gear and housing. See “Multipurpose feeder (MPF)/duplex
gear and housing removal” on page 4-131.
3. Remove the two multipurpose feeder/duplex motor mounting screws (A).
Go Back
A
4. Remove the multipurpose/duplex motor from the printer.
5. Push in the prongs (B) of the housing to remove the cable tie (C).
Next
Go Back
Next
Go Back
5. Slide the housing onto the motor, making sure the four tabs of the housing slide under the cable tie.
1. Remove the multipurpose feeder/duplex motor. See “Multipurpose feeder (MPF)/duplex motor
assembly removal” on page 4-133.
2. Disconnect the connector from JDX1 (A) on the system board.
Next
Go Back
1. Remove the right cover. See “Right cover removal” on page 4-51.
2. Remove the standard 550-sheet input tray.
3. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47.
4. Remove the Low-voltage power supply (LVPS). See “Low-voltage power supply (LVPS) removal” on Next
page 4-127.
5. Remove the three screws (A) securing the tray rail that contains the paper present sensor.
Go Back
A
6. Remove the JMPFPP1 connector (B) from the system board, then remove the cable.
Installation note: Pay attention to the routing of the cable.
7. Remove the MPF paper sensor bracket from the machine. Previous
Next
Go Back
8. Pry the sensor off the bracket, then disconnect the sensor (C) from the cable (D).
C D
9. Remove the cable from the bracket.
Installation note: Pay attention to the routing of the cable.
Next
Go Back
2. Press the latch on the MPF pick then pull to the left to remove.
2 1
1. Remove the top access cover assembly. See “Top access cover assembly removal” on page 4-54.
2. Turn the top access cover assembly over.
3. Remove the eight screws (A), and remove the position guide cover.
Next
Go Back
A
4. Pull open the operator panel connector (B) and disconnect the operator panel cable from the operator
panel card.
5. Remove the operator panel cable from the toroid (C) and the two cable retainers (D).
D C B
Installation note: Make sure the contact pins on the cable are facing up when reconnecting the operator
panel cable to the connector.
1. Remove the top access cover assembly. See “Top access cover assembly removal” on page 4-54.
2. Turn the top access cover assembly over.
3. Remove the eight screws (A) securing the position guide cover.
Next
Go Back
A
4. Disconnect the operator panel ground cable from the operator panel ground pin (B).
5. Remove the screw (C) securing the operator panel ground cable to the operator panel card.
B C
6. Remove the operator panel ground cable from its retainers.
Installation note: Pay attention to the routing of the ground cable.
1. Remove the top access cover assembly. See “Top access cover assembly removal” on page 4-54.
2. Turn the top access cover assembly over.
3. Remove the eight screws (A) securing the position guide cover.
Next
Go Back
A
4. Disconnect the USB ground cable (B) and detach the USB cable connector (C) from the USB slot.
B C
5. Remove the USB cable and ground cable from its retainers.
Installation note: Make sure to observe the routing of the USB cable.
1. Remove the LVPS. See “Low-voltage power supply (LVPS) removal” on page 4-127.
2. Disconnect the cable connector at JOPT1 (A) on the system board.
Next
Go Back
6. Press the tabs together to remove the option cable connector. Previous
Note: Be sure to note the cable routing for reinstallation.
Next
Go Back
See “Paper pick assembly” on page 7-7 for the part number.
7. Remove the transfer module with the photoconductor units attached. Previous
a. Disconnect the transfer module cable (D).
b. Press the two tabs (E) to release the front access cover assembly, and lower the front access door
cover.
c. Press the two tabs (F) on either side of the transfer module, and lift out the transfer module.
Note: Leave the photoconductor units on the transport belt when removing. Next
Warning: To avoid damaging the photoconductor drum, place the transfer module with the photoconductor units on
a clean surface. Never expose the photoconductor units to light for a prolonged period of time. Place a clean, dry cloth
over the transfer module and photoconductor units until they are required. Go Back
E F
10. With one hand, disengage the gear (H), then grasp the paper pick assembly, and pull forward and Previous
downward to disengage the assembly until the front (J) and rear locking tabs release (not visible).
Next
Go Back
11. Lower the paper pick mechanism, and remove through the front of the printer.
Note: Make sure the JTRAY1 and JTRAY2 connectors do not bind when passing through the frame
access hole.
Installation notes:
1. Remove the waste toner assembly. See “Waste toner assembly removal” on page 4-184.
2. Replace the rear frame cover to protect the system board.
3. Turn the printer on its back.
4. Slide the paper pick assembly toward the back of the printer, and down to engage the tabs (A).
Next
Go Back
6. Reach into the printer, and replace the front right screw (C) to secure the paper pick assembly. Previous
7. Set the printer upright.
8. Secure the remaining three screws (D).
Next
Go Back
Not a FRU
Warning: To avoid damaging the photoconductor drum, hold the photoconductor units by their handle and
place the photoconductor units on a clean surface. See “Handing the photoconductor unit” on
Next
page 4-2 for additional information.
1. Open the front access door.
2. Lift the right end handle (A) of the photoconductor unit, releasing from the mount. Go Back
3. Lift the unit up and away from the left side of printer, ensuring the left end of the photoconductor is released
from the holding pin (B).
Installation note: If a new photoconductor unit is installed, reset the life count value in the printer memory.
See “Pick arm roll” on page 7-7 for the part number.
The auto compensator pick roll tires are located in the base printer. There are also tires in all input options. If you
have additional input options, and you are having problems with media picking, replace these tires also. Always
Next
replace the pick arm rolls in pairs. The rolls come in a package of two.
Warning: Remove only the rubber tires and not the pick tire assembly to avoid losing small parts.
Go Back
1. Remove the paper tray.
2. Pull the paper pick arm (A) down.
A
3. Remove the pick arm roll (B) from the pick arm roll assembly (C). Repeat for the other pick arm roll (D).
B C D
Installation notes: Install the new rubber tires with the surface texture turning in the direction as shown. Previous
Note: Feel the rubber surface to verify it turns properly in the direction shown.
Next
Go Back
1. Slide the corner of the printer containing the damaged pad over the corner of the table.
2. Remove the side cover that corresponds to the damaged pad so you can see if the pad fully seats in the
installation holes.
3. Pull the pad tabs (A) from the bottom of the printer.
Installation note: Verify that the pad fully seats in the installation holes.
Printhead removal
Warning: To avoid damaging the photoconductor drum, place the transfer module with the Previous
photoconductor units on a clean surface. Never expose the photoconductor units to light for a prolonged
period of time. Place a clean, dry cloth over the transfer module and photoconductor units until they are
required.
Next
Go Back
B C
Next
Go Back
Go Back
Warning:
• When reinstalling the printhead, it is important to keep in mind that the printhead mounting screws should
be initially tightened just enough to hold the printhead in the printer. The printer parts are installed
with the printhead mounting screws loose so you can print the pages that will be used to align the black
plane to the printer frame. This also allows the black skew adjustment to be adjusted with the printhead
alignment screw.
• Once the black skew is aligned, the mounting screws will be fully tightened, and the next steps of
alignment can be completed.
1. When installing the printhead, visually center the printhead and center the hole in the frame (A).
Next
Go Back
4. Feed the ground cable through the hole in bottom leftside frame.
F3 F1
F2
F1 F3 F1 F3 F4 F1
c. Route the cables through the access holes on the right side of the printer.
d. Replace all the screws (G) from the left side of the printer, including: Previous
• Ethernet port connector (1 screws)
• Modem shield (1 screws)
• Hard disk shield (2 screws)
• Ground screw (1 screw)
Note: Be sure to attach the ground wire (H) to the ground screw. Next
Go Back
e. Reconnect all the cables to the system board. Use the diagram below as a guideline.
Warning: Be careful in reconnecting the printhead ribbon cable (J). It can be damaged and should be
handled carefully. A flat ribbon cable can easily be damaged and should be connected gently by hand.
Note: The printhead mounting screws should be initially tightened just enough to hold the printhead in the
printer.
There is one printhead that houses the four color planes. The black plane is aligned to the printer, and the color
planes are internally aligned to black. Electrical alignment is done to fine tune the alignment of the color planes
to the black plane after the printhead is installed, and black skew is adjusted using the alignment screw.
See “Right bellcrank assembly, with spring” on page 7-7 for the part number.
1. Remove the right cover. See “Right cover removal” on page 4-51.
2. Remove the C-clip (A). Next
Go Back
A
3. Remove the right bell crank assembly.
1. Remove the rear upper cover. See “Rear upper cover removal” on page 4-50.
2. Remove the right cover. See “Right cover removal” on page 4-51.
Next
3. Disconnect the speaker connector (A).
4. Loosen the three screws (B), then remove the speaker.
Go Back
B A
CAUTION
This product contains a lithium battery. THERE IS A RISK OF EXPLOSION IF THE BATTERY
IS REPLACED BY AN INCORRECT TYPE. Discard used batteries according to the battery
manufacturer’s instructions and local regulations.
Warning: This part might contain customer confidential information. See “Data Security Notice” on page 4-1
for more details. After removing this part, return it to your next level of support so any data can be
removed. If the customer requests to keep the part, they must sign a confirmation of memory device
retention form.
Warning: When replacing any one of the following components:
• Operator panel assembly
• System board
• Top access cover assembly
Only replace one component at a time. Replace the required component, and perform a POR before
replacing a second component listed above. If this procedure is not followed, the printer will be
rendered inoperable.
Warning: Be careful not to damage the printhead cable when removing the system board. Previous
1. Remove the left cover and the rear left cover. See “Left cover removal” on page 4-31.
2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47.
3. Remove the hard disk if one is installed. See “Hard drive assembly removal” on page 4-122.
4. Remove all the screws (A) from the left side of the printer so you can remove the system board, including:
• USB port connector (1 screw) Next
• Ethernet port connector (1 screws)
• Modem shield (1 screws)
• Hard disk shield (2 screws) Go Back
• Ground screw (1 screw)
Next
Go Back
2. Replace the nine screws (A) in the system board in the following order: Next
• Loosely attach the four corners (A1) in a clockwise order, beginning with the left top corner.
• Replace the USB connector screw (A2).
• Replace the top center, right center side, and left center side (A3). Go Back
• Tighten the top left corner and top right corner.
• Replace the two screws on the center bottom (A4).
• Tighten the bottom right and bottom left corners (A1).
A3 A1
A2
A1 A3 A1 A3 A4 A1
3. Route the cables through the access holes on the right side of the printer.
4. Replace all the screws (B) from the left side of the printer, including: Previous
• Ethernet port connector (1 screws)
• Modem shield (1 screws)
• Hard disk shield (2 screws)
• Ground screw (1 screw)
Note: Be sure to attach the ground wire (C) to the ground screw. Next
Go Back
5. Reconnect all the cables to the system board. Use the diagram below as a guideline.
Warning: Be careful reconnecting the printhead ribbon cable (D). It can be damaged and should be
handled carefully. A flat ribbon cable can easily be damaged and should be connected gently by hand.
See “System board support shield” on page 7-11 for the part number.
1. Remove the system board. See “System board removal” on page 4-163.
2. Remove the right cover. See “Right cover removal” on page 4-51.
Next
3. Pull the cables through the access holes on the right side of the printer.
4. Remove the five mounting screws (A) from the outer left side of the printer.
Note: Make a note of the attachment of the printhead ground cable (B) to the fourth screw from the top for Go Back
later installation.
5. Remove the four screws (C) from the inner right side of the support shield.
6. Remove the five mounting screws (D) from the top and bottom of the support shield. Previous
Note: Only the ribbon and mirror motor cables come through the access holes in the system board
support shield.
Next
Go Back
7. Lower and remove the support shield. Be careful not to damage the ribbon cable that routes through the
bottom frame of the printer.
Installation notes:
3. Replace the remaining system board support shield screws in the following order: Previous
• Replace the four screws (B) from the inner right side of the support shield.
• Tighten the two mounting screws (A) to the top of the support shield.
• Replace the three screws (C) from the bottom of the support shield, and two screws from the top.
• Replace the five mounting screws (D) to the outer left side of the printer.
Note: Be sure to connect the printhead ground cable (E) to the fourth screw from the top. Next
Go Back
See “Toner level sensor” on page 7-13 for the part number.
Go Back
1. Remove the HVPS. See “High-voltage power supply (HVPS) removal” on page 4-123.
2. For the upper two sensors: These sensors are more difficult to reach because the toner is difficult to
reach:
It is difficult to press both locking tabs at the same time. Using a spring hook, press the locking tab (A), and Previous
disengage the sensor on that side. Press the other locking tab (B), and remove the sensor.
Note: Use a slight pressure on the cable to keep the first locking tab from relatching, while you disconnect
the second locking tab.
Next
Go Back
See “Top cover camshaft assembly” on page 7-14 for the part number.
Go Back
4. Rotate the top access cover back, and place a screwdriver in the cable hole in the frame to hold the cover
in place.
Next
Go Back
8. Rotate the camshaft up using the camshaft actuator handles (E) so you can access the other two Previous
screws (F), and remove them.
Next
Go Back
9. Flex the EP drive assembly to remove the right side of the camshaft from the boss (G), and lift to remove
the camshaft.
1. On the left side, align the mark on the idler gear (A) with the mark on the camshaft gear (B), and slide the
camshaft into place, meshing the gears on the left side.
Next
Go Back
A B
2. Rotate the camshaft up using the camshaft actuator handle (C), and make sure the gears on the right side Previous
mesh so the first gear tooth of the camshaft aligns with the first two gear teeth of the EP drive actuator
rack (D).
Note: Make sure the actuator rack on the EP drive is all the way back.
3. Flex the EP drive on the right to seat the end of the shaft into the boss (E) on the EP drive.
Next
Go Back
4. Make sure the left and right camshaft brackets are fully seated, and replace the two screws (F).
5. Rotate the camshaft using the camshaft actuator handle, and replace the two screws (G). Previous
Next
Go Back
6. Replace the screw in the EP drive that allowed you to flex the EP drive, and tighten the other screw (see
step 6 of the removal).
7. Replace the top access cover assembly.
8. Replace the fuser, the cartridges, and close the covers.
B C
Note: If you are removing the transfer module to access another part, leave the photoconductor units attached, Previous
and you are done. If you need to replace the transport belt, continue with the next step to remove the separate
photoconductor units.
4. Remove the photoconductor units. Lift the right end handle (D) of the photoconductor unit, releasing from
the mount.
5. Lift the unit up and away from the left side of printer, ensuring the left end of the photoconductor is released Next
from the holding pin (E).
Go Back
Installation note:
• Place the photoconductor units on the new transport belt, and reinstall.
• Perform the Color Alignment in the Configuration Menu:
1. Enter Config Menu (turn off the printer, press and hold buttons 3 and 6, turn the printer on, and
release the buttons when the clock graphic displays).
2. Select Color Alignment from the Configuration Menu.
3. Select Print Alignment Page.
4. Select Set A.
5. Consulting the printed page, follow the instructions on the operator panel to choose the best
appearing line numbered 0 through 20 for line A.
6. Continue selecting the best lines for the sets through Set L.
7. Select Back ( ) to return to the Configuration main menu, and select Exit Config Menu.
1. Remove the LVPS. See “Low-voltage power supply (LVPS) removal” on page 4-127.
2. Remove the transport belt assembly. Leave the photoconductor units in place. See “Transfer module
removal” on page 4-179.
3. Disconnect the transport cable from the system board at JTPS1 connector (A). Next
Note: The cable connector on the system board end of the cable is smaller than the connector on the front
access door, and it may be easier to get that end through the openings.
Go Back
4. Extract the cable through the opening in the frame to the right side of the printer (B). Previous
5. Remove the cable from the five cable restraints (C).
6. Remove the cable from the three openings in the cable channel (D) on the right side of the front access
door.
Next
Go Back
Next
Go Back
1. Remove the right cover. See “Right cover removal” on page 4-51.
2. Disconnect the cable from the transport motor drive (A).
3. Disconnect the cable from the transport motor (B).
Not a FRU.
Go Back
Warning: To avoid damaging the photoconductor drum, place the transfer module with the photoconductor units on
a clean surface. Never expose the photoconductor units to light for a prolonged period of time. Place a clean, dry cloth
Go Back
over the transfer module and photoconductor units until they are required.
B C
4. Remove the left cover. See “Left cover removal” on page 4-31.
5. Remove the six mounting screws (D) holding the HVPS in place. Previous
Next
Go Back
D
6. Release the locking tab (E) from the front, lower corner of the HVPS.
Next
Go Back
8. Disconnect the three top toner level sensor cables (F) from the HVPS.
Next
Go Back
G (18B1236)
10. Remove the cleaner shutter actuator (H) from the waste toner HV contact assembly. Previous
Next
Go Back
11. Remove the four screws (J), the two screws (K), and the screw (L). Tilt the Waste toner HV contact Previous
assembly forward and up to remove it.
Next
Go Back
Installation note: Do the following procedures when re-installing the waste tone HV contact assembly: Previous
Go Back
A B
4. Press the lower half (C,D) of the springs, and remove the springs.
C D
5. Install the waste toner HV contact assembly into place. Route the toner level sensor cables (E) through the Previous
holes in the waste toner HV contact assembly while positioning the assembly. Make sure the aligner shaft
worm gear is aligned as shown.
Ribs aligned Rib
Next
Go Back
Next
Go Back
Install 3rd
(27S2838)
7. Use two screws (F) to attach the cleaner shutter actuator to the Waste toner HV contact assembly. Make Previous
sure the gear aligns as shown.
Ribs aligned Rib
Next
Go Back
F (27S2838)
8. Attach the eight springs (G) to the Waste toner HV contact assembly as shown. Make sure the springs are Previous
behind the retainers.
Retainer
Next
Go Back
9. Install the contact springs. When installing each contact spring, make sure the top half (H) of the spring is Previous
under the straight spring (J). This is typical for both types of springs. Also make sure that the bottom half
(K,L) of both springs are compressed and locked by the appropriate locking tabs (M,N).
K J
Next
M
Go Back
L
N
10. Connect the three top toner level sensor cables to the HVPS, making sure the cables (O) are attached Previous
properly to the retainers (P).
Next
Go Back
O P
11. Reassemble the rest of the printer.
1. Remove the wireless network card. see “Wireless network card removal” on page 4-199.
2. Disconnect the wireless network antenna cable (A) from the wireless network card.
Next
Go Back
3. With pliers, squeeze the inner tabs (B), and pull the antenna out.
4. Pull the cable through, and remove the antenna with the cable.
1. Remove the rear frame cover. See “Rear frame cover removal” on page 4-47.
2. Disconnect the wireless cable from the system board at J5 (A), by squeezing the tabs at either end
together.
Next
Go Back
3. Remove the two screws (B) that secure the card into place.
4. Pop the posts (C) on the card from the sockets (holes) in the system board. Previous
Next
Go Back
Note: If you are removing the wireless network card to access another part, leave the antenna attached to the
card, and you are done. If you need to replace the wireless network card FRU, continue with the next step to
remove the separate wireless network antenna FRU.
5. Remove the wireless network antenna. See “Wireless network antenna removal” on page 4-198.
Previous
Option removals
HCIT media tray assembly removal
Note: When removing the high-capacity input tray (HCIT) media tray assembly, it is not necessary to remove it Next
from the base machine and the caster base.
1. Open the HCIT media tray assembly (A) until it reaches a stop.
Go Back
2. Press the latches (B) on the left and right side of the HCIT tray slides.
Note: When removing the high-capacity input tray (HCIT) front tray cover, it is not necessary to remove the
HCIT media tray assembly from the base machine and the caster base.
1. Remove the HCIT media tray assembly. See “HCIT media tray assembly removal” on page 4-201.
2. Remove the six screws (A) securing the HCIT front tray cover to the media tray assembly. Next
3. Remove the HCIT front tray cover.
Go Back
1. Remove the four screws (A) securing the HCIT rear cover to the drawer.
2. Remove the HCIT rear cover.
Next
Go Back
1. Carefully remove the printer or multifunction printer from the high-capacity input tray (HCIT) and remove
the HCIT from the caster base.
2. Remove the HCIT media tray assembly. See “HCIT media tray assembly removal” on page 4-201.
3. Remove the HCIT rear cover. See “HCIT rear cover removal” on page 4-203. Next
4. Remove the six screws (A) securing the HCIT right cover to the drawer.
Go Back
1. Carefully remove the printer or multifunction printer from the high-capacity input tray (HCIT), and remove
the HCIT from the caster base.
2. Remove the HCIT media tray assembly. See “HCIT media tray assembly removal” on page 4-201.
3. Remove the HCIT rear cover. See “HCIT rear cover removal” on page 4-203. Next
4. Remove the six screws (A) securing the HCIT left cover to the drawer.
Go Back
A
5. Remove the HCIT left cover.
1. Remove the high-capacity input tray (HCIT) top plate assembly. See “Top plate assembly removal” on
page 4-214.
2. Remove the four screws (A) securing the pass thru sensor bracket to the top plate assembly.
Note: The bushing may come off when removing the pass thru sensor bracket. Next
Go Back
3. Remove the screw (B) securing the 46T gear (C) to the top plate assembly.
4. Remove the 46T gear.
5. Snap loose the feed roller (D), and remove.
B C D
1. Remove the HCIT right cover. See “HCIT right cover removal” on page 4-204.
2. Disconnect the seven connectors (A) from the HCIT controller board.
Next
Go Back
A
3. Remove the ground screw (B) from the HCIT controller board.
4. Remove the two screws (C) securing the HCIT controller board to the card mount option.
B C
5. Remove the HCIT controller board.
The left and right drawer slide assemblies are the same, and only one is in a package. The instructions below
are for removing the left slide, but removing the right slide is similar.
1. Remove the HCIT media tray assembly. See “HCIT media tray assembly removal” on page 4-201.
Next
2. Remove the three screws (A) securing the HCIT drawer slide to the side frame.
Go Back
A
3. Remove the HCIT drawer slide.
1. Remove the HCIT right cover. See “HCIT right cover removal” on page 4-204.
2. Disconnect the connector (A) from the HCIT controller board.
3. Release the hooks (B) securing the pass thru sensor to the top plate assembly. Previous
4. Remove the pass thru sensor from the top plate assembly.
5. Release the harness from the clamps (C).
6. Remove the eight screws (D) securing the elevator motor with sensor to the side frame.
Next
Go Back
1. Remove the high-capacity input tray (HCIT) media tray assembly. See “HCIT media tray assembly
removal” on page 4-201.
2. Pull the auto compensator pick arm (A) down.
Next
Go Back
A
3. Remove the pick arm roll (B) from the pick roll assembly (C).
4. Repeat for the other pick arm roll (D).
Note: Always replace the pick arm rolls as pairs.
B C D
Installation notes:
See “Pick arm roll removal and replacement” on page 4-151 to make sure the pick arm roll is oriented
correctly.
1. Remove the HCIT controller board assembly. See “HCIT controller board assembly removal” on
page 4-207.
2. Disconnect the two springs (A) from the frame.
Note: Leave the springs attached to the cam size sensing plate (B) and the actuator switch. Next
3. Slide the cam size sensing plate (B) through the access hole in the rear side frame.
Go Back
4. Remove the media size actuator from the card mount option (C).
5. Snap loose the actuator switch (D), and remove.
6. Remove the four screws (E) securing the card mount option to the frame. Previous
Next
Go Back
1. Place the card mount option into position, and secure it with the four screws.
2. Reinstall the media size actuator to the card mount option.
3. Reinstall the actuator switch with spring through the inside of the drawer.
4. Reinstall the cam size sensing plate with spring through the access hole in the rear side.
5. Reattach the two springs to the frame.
1. Remove the high-capacity input tray (HCIT) right cover. See “HCIT right cover removal” on page 4-204.
2. Disconnect the photo interrupter sensor cable connector (A) from the HCIT controller board.
Next
Go Back
A
3. Turn the drawer rear side down, and use 4.0 mm wrench to remove the four Allen screws (B) securing the
counterweight to the rear frame.
Warning: Do not remove the screws without turning the drawer rear side down first. The counterweight is
very heavy; it might fall and cause damage.
4. Remove the screw (C) securing the sensor to the rear frame, and then release the hooks (D). Previous
Note: Remove the cable from the restraint, and observe the routing for reinstallation.
Next
D
Go Back
1. Remove the high-capacity input tray (HCIT) right cover. See “HCIT right cover removal” on page 4-204.
2. Disconnect the five connectors (A) from the HCIT controller board.
3. Release the hooks (B) securing the pass thru sensor from the top plate assembly. Previous
4. Remove the fourteen screws (C) securing the top plate assembly to the frame.
Next
C
Go Back
Previous
Next
Go Back
Locations
Next
Go Back
Previous
Connectors
System board diagram
Next
JSB1 JBIN1 JFUSER1 JHVPS1 JMIRR1 JBLW1
J2
JFAN1 JBOR1
JCVR1 Go Back
F5
JLVPS2
F7
F8
JCARTP1
F9
JCARTS1
F10
JCARTS2
JFMUSB1
JCARTP2
F11
JDVR1
JTPS 19
F14
JOX1
JFDS1 J19
J7
JINT1
Previous
Connector Description
Next
F(#) Fuse
J2 Operator panel I/F
Go Back
J5 Ethernet connector
JBIN1 Output bin sensor
JBLW1 Cartridge blower
JBOOT1 Daughter card boot connector
JBOR1 Black only retract connector
JBUSB1 USB device port
JCARTP1 Cartridge 1 BLDC motor (upper)
JCARTS1 Fuser and cartridge 1 connector
JCARTS2 Cartridge 2 BLDC motor (lower)
JCVR1 +25V Cover Open Switch Connector
JDVR1 Daughter card motor driver
JDX1 Duplex/MFP BDC motor drive
JFAN1 System fan
JFDPCK1 Feed and pick motor connector
JFDS1 Feed thru sensor connector
JFMUSB1 USB device port
JFUSER1 Fuser motor connector
JHVPS1 High voltage power supply
JINT1 Interlock switch (5v)
JLVPS2 Low voltage power supply
JMIRR Mirror motor connector
JMPFPP1 MPF sensor
JOPT1 Option port connector
JPH1 Printhead connector
JSB1 Cartridge SB connector
JSEC1 Security jumper connector
JTOPP1 Speaker connector
JTPS1 Toner patch sensor connector
JTRAY1 Tray 1 input, NMT sensors
JUSB1 USB device port
Previous
Next
Go Back
This chapter describes procedures for printer preventive maintenance. Follow these recommendations to help
prevent problems and maintain optimum performance.
Next
The purpose of this inspection guide is to aid you in identifying unsafe conditions.
If any unsafe conditions exist, find out how serious the hazard could be and if you can continue before you
correct the hazard.
• Damaged, missing, or altered parts, especially in the area of the On/Off switch and the power supply
• Damaged, missing, or altered covers, especially in the area of the top cover and the power supply cover
• Possible safety exposure from any non-Lexmark attachments
Lubrication specifications
Lubricate only when parts are replaced or as needed, not on a scheduled basis. Use of lubricants other than
those specified can cause premature failure. Some unauthorized lubricants may chemically attack
polycarbonate parts. Use IBM no. 10 oil, P/N 1280443 (Approved equivalents: Mobil DTE27, Shell Tellus 100,
Fuchs Renolin MR30), IBM no. 23 grease (Approved equivalent Shell Darina 1), and grease, P/N 99A0394 to
lubricate appropriate areas. Use Nyogel type 774 to lubricate the Fuser Drive Assembly and Nyogel 744 to
lubricate the ITU and Cartridge Drive assemblies.
1. Make sure that the printer is turned off and unplugged from the outlet.
CAUTION
SHOCK HAZARD: To avoid the risk of electric shock when cleaning the exterior of the
printer, unplug the power cord from the outlet, and disconnect all cables to the printer
before proceeding.
4. Wipe only the outside of the printer, making sure to include the standard exit bin.
Warning: Potential Damage: Using a damp cloth to clean the interior may cause damage to your printer.
5. Make sure the paper support and standard exit bin are dry before beginning a new print job.
Clean the printhead lenses when you encounter print quality problems.
2. Remove all four toner cartridges. Do not remove the photoconductor units for this procedure.
3. Locate the four printhead lenses. Go Back
POTENTIAL INJURY: The printer weight is greater than 54 lbs (24.5kg) and requires two or
more trained personnel to lift it safely.
• Always turn off the printer using the power switch before moving it.
• Disconnect all cords and cables from the printer before moving it.
• Remove the printer from the options before moving it.
• Asm-index: Identifies the assembly and the item in the diagram. For example, 3-1 indicates Assembly 3
and item number 1 in the table.
• Part number: Identifies the unique number that identifies this FRU.
• Units/mach: Refers to the number of units actually used in the base machine or product.
• Units/option: Refers to the number of units in a particular option. It does not include the rest of the base
machine.
• Units/FRU: Refers to the number of units packaged together and identified by the part number.
• NS: (Not shown) in the Asm-Index column indicates that the part is procurable but is not pictured in the
illustration.
• Model information used in the parts catalog:
330 5026-330 Lexmark C746dtn Network-ready with duplex and 550 sheet
tray
530 5026-530 Lexmark C748de Network-ready with etask touch screen and
duplex
331 5026-331 Lexmark C746dtn Network-ready with duplex and 550 sheet
tray
531 5026-531 Lexmark C748de Network-ready with etask touch screen and
duplex
5
1
Next
Go Back
2
4
6
8
18
9
10
16
17
17
13
12
11
15
14
Units/ Units/
Index P/N Description
mach FRU
1—1 40X7520 1 1 Top access cover assembly, 2.3 inch
Next
2 40X7660 1 1 2.3 inch operator panel buttons parts package
Includes the following:
• Button kit Go Back
• Sleep button
• Return button
• Select button
• Navigation button
• Home button
• LED Lens
3 40X5121 1 1 Bin full sensor with cable
4 40X7603 1 1 2.3 inch operator panel assembly with card
Includes the following:
• LCD Display
• UICC card
5 40X7966 1 1 Top access cover parts package
Includes the following:
• Bin full flag
• Operator panel display bracket
6 40X5106 1 1 Output bin extension cover
7 40X5103 1 1 Rear upper cover
8 40X5993 1 1 Top cover assembly
9 40X5287 1 1 Cooling fan filter
10 40X5145 1 1 Rear frame cover
11 40X5105 1 1 Rear right cover
12 40X5153 1 1 Dust cover assembly
13 40X5104 1 1 Rear left cover
14 40X5994 1 1 Right cover
15 40X7661 1 1 Front access door cover assembly
16 40X5102 1 1 Left cover
17 40X5119 1 1 Top access cover links (slider cam)
Note: The left link is also available in the top access cover assembly and
the right link is also available in the EP drive assembly
18 40X8317 1 1 Operator panel bezel, C74x (blank logo)
18 40X6879 1 1 Operator panel bezel, C746n
18 40X7335 1 1 Operator panel bezel, C746dn and C746dtn
6
1
Next
Go Back
2
4
7 8
20 9
11
10
12
19
18
18
17
13
14
16
15
Units/ Units/
Index P/N Description
mach FRU
2—1 40X5988 1 1 Top access cover assembly, 4.3 inch
Next
2 40X5990 1 1 4.3 inch operator panel buttons parts package
Includes the following:
• Button kit Go Back
• Home button
• Sleep button
• LED Lens
3 40X5121 1 1 Bin full sensor with cable
4 40X5989 1 1 UICC card
5 40X7116 1 1 4.3 inch LCD display
6 40X7966 1 1 Top access cover parts package
Includes the following
• Bin full flag
• Operator panel display bracket
7 40X5106 1 1 Output bin extension cover
8 40X5103 1 1 Rear upper cover
9 40X5993 1 1 Top cover assembly
10 40X7703 1 1 Speaker
11 40X5287 1 1 Cooling fan filter
12 40X5145 1 1 Rear frame cover
13 40X5153 1 1 Dust cover assembly
14 40X5105 1 1 Rear right cover
15 40X5994 1 1 Right cover
16 40X7661 1 1 Front access door cover assembly
17 40X5104 1 1 Rear left cover
18 40X5119 1 1 Top access cover links (slider cam)
Note: The left link is also available in the top access cover assembly and
the right link is also available in the EP drive assembly
19 40X5102 1 1 Left cover
20 40X8317 1 1 Operator panel bezel, C74x (blank logo)
20 40X6877 1 1 Operator panel bezel, C748de
20 40X8259 1 1 Operator panel bezel, C748e
Next
Go Back
14
13 3
2
5
12 4
11
F
E
F
D C
7 6
B
G A
10
Units/ Units/
Index P/N Description
mach FRU
3—1 40X8110 1 1 Fuser assembly, 115 V
Next
1 40X8111 1 1 Fuser assembly, 230 V
1 40X8112 1 1 Fuser assembly, 100 V
2 Printer pad, included in screws parts packet (P/N 40X5136) Go Back
3 40X1446 1 1 Right bellcrank assembly, with spring
4 40X5132 1 1 MP feeder/duplex drive parts packet
Includes the following
• Retainer release arm
• Grease packet (Nyogel 744)
• Washer
• Duplex engagement gear
• MP feeder reduction gear
• MP feeder/duplex reduction gear
• MP feeder drive cover
5 40X6319 1 1 Cranklift spring and metal clip
6 40X8308 1 1 Paper pick assembly
7 40X5152 2 2 Pick arm roll
8 40X5999 1 1 Paper tray assembly, 550-sheet
9 40X6496 1 1 MPF pick arm assembly
10 40X5111 1 1 Front door parts packet
Includes the following:
• A—Front access door cap (1)
• B—Right cable assembly (1)
• C—Front access cover pivot (1)
• D—Left cable assembly (1)
• E—Front access door straps (2)
• F—Front access door bracket (1)
• G—Screw
11 40X5113 1 1 Duplex reference edge assembly
12 40X5995 1 1 Front door assembly
13 40X6401 1 1 Transfer module
14 40X1447 1 1 Left bellcrank assembly, with spring
NS 40X8554 1 1 Cartridge guide wheels
Next
Go Back
Units/ Units/
Index P/N Description
mach FRU
4—1 40X5290 1 1 EP drive assembly
Next
2 40X5991 1 1 Low-voltage power supply
3 40X5126 1 1 Motor driver card
4 40X8309 1 1 MP feeder/duplex motor Go Back
5 40X5128 1 1 24 V interlock switch
6 40X5127 1 1 5 V interlock switch
7 40X5998 1 1 MPF paper present sensor with cable
Next
Go Back
Units/ Units/
Index P/N Description
mach FRU
5—1 40X5123 1 1 Printhead assembly
Next
2 40X5107 1 1 System board support shield
3 40X5996 1 1 System board, 4.3 inch model
3 40X7953 1 1 System board, 2.3 inch model Go Back
NS 40X0269 1 1 Power cord—USA, Canada, Bolivia, Peru
NS 40X0288 1 1 Power cord (8 ft.)—Argentina
NS 40X0301 1 1 Power cord (8 ft.)—Australia, New Zealand
NS 40X3141 1 1 Power cord (8 ft.)—Austria, Belgium, Catalan, Czechoslovakia, Finland,
France, Germany, Greece, Hungary, Ireland, Italy, Netherlands, Norway,
Paraguay, Poland, Portugal, Russia, Spain, Sweden, Turkey, United
Kingdom
NS 40X0271 1 1 Power cord (8 ft.)—United Kingdom
NS 40X4596 1 1 Power cord (8 ft.)—Brazil
NS 40X0273 1 1 Power cord (8 ft.)—Chile, Uruguay
NS 40X0303 1 1 Power cord (8 ft.)—China
NS 40X1774 1 1 Power cord (8 ft.)—Denmark, Finland, Norway, Sweden
NS 40X0275 1 1 Power cord (8 ft.)—Israel
NS 40X3609 1 1 Power cord (8 ft.)—Japan
NS 40X1792 1 1 Power cord (8 ft.)—Korea
NS 40X1773 1 1 Power cord (8 ft.)—South Africa
NS 40X1772 1 1 Power cord (8 ft.)—Switzerland
NS 40X1791 1 1 Power cord (8 ft.)—Taiwan
(4 places) (4 places)
1A 1B 7 Next
Go Back
1C
(4 places)
(4 places) 1F
(4 places) 1G
(4 places) 1E
3 1D
2
(8 places)
Units/ Units/
Index P/N Description
mach FRU
6—1 40X5137 1 1 Contact springs kit
Next
Includes the following:
• A—Torsion PCD contact spring
• B—Torsion CR contact spring
• C—Contact spring cap Go Back
• D—Charge roll contact spring
• E—HVPS TAR contact spring
• F—HVPS doctor/developer contact spring
• G—HVPS Db contact spring
• Screw
2 40X7159 1 1 Auger shaft and gear parts pack
3 40X5307 1 1 Waste toner HV contact assembly
4 40X5129 1 1 High-voltage power supply
5 40X1416 4 1 Toner level sensor
6 40X8373 1 1 Toner cartridge contacts
7 41X0444 1 1 Cartridge contact cable
Next
1
3 Go Back
Units/ Units/
Index P/N Description
mach FRU
7—1 40X5122 1 1 Color-On-Demand assembly
2 40X5109 1 1 Cooling fan
3 40X5130 1 1 Top cover camshaft assembly
4 40X5108 1 1 Cartridge cooling fan
Units/ Units/
Index P/N Description
mach FRU
NS 40X7973 1 1 Cables parts packet, including Next
• Duplex/MPF motor cable
• Fuser AC cable
• Fuser DC cable Go Back
• HVPS cable
• Transport cable
• Fuser and cartridge 1 motor cable
• Cartridge 2 and 3 motor cable
• USB-A cable
• 550 option cable
• Transport motor cable
• Speaker cable
• UICC cable (for single-function)
• UICC cable (for multi-function)
• Operator panel ground cable (for single-function)
• Operator panel ground cable (for multi-function)
NS 40X6351 1 1 Motor driver cable
Next
Go Back
Units/ Units/
Index P/N Description
opt FRU
9—1 40X5140 1 1 550-sheet tray option (drawer and tray assembly)
2 40X5168 2 2 Pick arm roll, 550-sheet tray
3 40X5141 1 1 550-sheet tray assembly
Next
Go Back
Units/ Units/
Index P/N Description
opt. FRU
10—1 40X5142 1 1 Special media assembly, including tray
2 40X5152 2 2 Pick arm roll, 550-sheet drawer
3 40X5143 1 1 Special media tray assembly
Next
Go Back
3
2 4
14
5
6
7
13
10
9
12
11
Units/ Units/
Index P/N Description
option FRU
11—1 40X5157 1 1 Top plate assembly
Next
2 40X5168 2 2 HCIT pick arm roll
3 40X5156 1 1 Feed with bushing
4 40X5149 1 1 HCIT rear cover Go Back
5 40X4585 2 1 Tray latch with spring
6 40X5159 1 1 HCIT controller card assembly
7 40X4587 1 1 Slide assembly with springs
8 40X5147 1 1 HCIT right cover
9 40X5155 1 1 Elevator motor with sensor
10 40X5158 1 1 Photointerrupter sensor with cable assembly
11 40X4593 2 1 HCIT drawer slide assembly
12 40X5146 1 1 HCIT front tray cover
13 40X5144 1 1 HCIT paper drawer tray assembly
14 40X5148 1 1 HCIT left cover
Units/ Units/
Index P/N Description
opt FRU
NS 40X5317 1 1 Parts packet, ISP thumbscrew and standoff Next
NS 40X5315 1 1 Wireless ISP thumbscrew
NS 40X5318 1 1 ISP thumbscrew
Go Back
NS 40X5136 1 1 Parts packet, screw (contains each screw used in the printer, with the
exception of the parts specifically called out.) See “Screw and retainer
identification table” on page 4-3.
NS 40X5301 1 1 256 MB SDRAM
NS 40X5302 1 1 512 MB SDRAM
NS 40X5303 1 1 1024 MB SDRAM
NS 40X5704 1 1 256 MB flash card
NS 40X5969 1 1 Korean font card
NS 40X5971 1 1 Traditional Chinese font card
NS 40X5970 1 1 Simplified Chinese font card
NS 40X5972 1 1 Japanese font card
NS 40X7051 1 1 Lexmark PrintCryption™ card
NS 40X4826 1 1 MarkNet™ N8120 10/1000
NS 40X9652 1 1 MarkNet N8130 10/100 fiber
NS 40X4823 1 1 Parallel 1284-B interface card adapter
NS 40X4819 1 1 Serial interface card adapter
NS 40X7058 1 1 160 GB hard drive assembly
NS 7377200 1 1 Option drawer relocation kit
NS 40X5281 1 1 High-capacity input tray (HCIT) relocation kit
NS 40X5316 1 1 14-pin JST cable assembly for ISP interface cable
NS 40X8332 1 1 C74x relocation kit
NS 40X1367 1 1 10 ft. parallel cable, ROHS
NS 40X1368 1 1 2 meter USB cable, ROHS
NS 40X1592 1 1 Print server 4-port USB
NS 40X1593 1 1 Print server 1-port USB
NS 40X1594 1 1 Print server parallel
NS 40X8321 1 1 C746x forms + barcode
NS 40X8322 1 1 C748x forms + barcode
NS 40X7062 1 1 Wireless US 802.11b/g/n ISP adapter
NS 40X7063 1 1 Wireless EU 802.11b/g/n ISP adapter
NS 40X8324 1 1 C746x IPDS SCS TNe card
NS 40X8325 1 1 C748x IPDS SCS TNe card
NS 40X8327 1 1 C746x Prescribe card
NS 40X8328 1 1 C748x Prescribe card
NS 40X8359 1 1 Caster front wheel
NS 40X8478 1 1 Caster base
Index Previous
Index I-1
5026
Index I-3
5026
cartridge cooling fan 4-66 paper pick mechanism assembly 4-145 Previous
cartridge motor 1/fuser cable 4-74 photoconductor unit 4-150
cartridge motor 2/3 cable 4-77 pick roll rubber tires 4-151
color on demand assembly 4-78 precautions 4-28
contact springs 4-83 printer pad 4-152
cooling fan 4-93 printhead 4-153
covers right bellcrank 4-162 Next
Index I-5
5026
40X5140 Option tray assembly, 550-sheet option (includes tray) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-16 Previous
40X5141 550-sheet tray assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-16
40X5142 Special media assembly, including tray - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-17
40X5143 Special media tray assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-17
40X5144 HCIT tray assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-19
40X5145 Rear frame cover - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-3, 7-5
40X5146 HCIT front tray cover - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-19 Next
Previous
Next
Go Back