Samsung CLP 500 Series SVC Manual

SAMSUNG COLOR LASER
PRINTER
CLP-500 SERIES
(Draft Version_17.Sept.)
TRAINING Manual
SAMSUNG COLOR LASER PRINTER CONTENTS
1. Precautions
2. Reference Information
3. Specifications
4. Summary of product
5. System Outline
6. Disassembly and Reassembly
7. Alignment and Adjustments
8. Troubleshooting
9. Exploded Views and Parts List
10. Block Diagram
11. Connection Diagram
* This Service Manual is a property of Samsung Electronics
Co.,Ltd. Any unauthorized use of Manual can be punished
under applicable International and/or domestic law.
* This service manual is also provided on the web,

the ITSELF system f Samsung Electronics Co., © Samsung Electronics Co.,Ltd. July 2003
Ltd. Printed in Korea.
http://itself.sec.samsung.co.kr VERSION NO. : 1.00 CODE : JC-0095A
Precautions
1
1. Precautions
The cautions in the below are items needed to keep in mind when maintaining and servicing.
Please read carefully and keep the contents in mind to prevent accidents while servicing and to prevent
that the machine gets damage.
1.1 Warning for safety.

(1) Request the service by qualified service person.
The service for this machine must be performed by a service person who took the additional education of
this field. It is dangerous if unqualified service person or user tries to fix the machine.
(2) Do not rebuild it discretionary.

Do not attach or change parts discretionary. Do not disassemble, fix, and rebuilt it. If you do, the printer will
not work and electric shock or a fire can occur.
(3) Laser Safety Statement

The Printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR, chapter 1 Subchapter J
for Class 1(1) laser products, and elsewhere, it is certified as a Class I laser product conforming to the
requirements of IEC 825. Class I laser products are not considered to be hazardous. The laser system and
printer are designed so there is never any human access to laser radiation above a Class I level during nor-
mal operation, user maintenance, or prescribed service condition.
Warning >> Never operate or service the printer with the protective cover removed from Laser/Scanner assembly. The reflected
beam, although invisible, can damage your eyes. When using this product, these basic safety precautions should
always be followed to reduce risk of fire, electric shock, and injury to persons.
CAUTION - INVISIBLE LASER RADIATION

WHEN THIS COVER OPEN.
DO NOT OPEN THIS COVER.
VORSICHT - UNSICHTBARE LASERSTRAHLUNG,
WENN ABDECKUNG GE FFNET.
NICHT DEM STRAHL AUSSETZEN.
ATTENTION - RAYONNEMENT LASER INVISIBLE EN CAS
D OUVERTURE. EXPOSITION DANGEREUSE
AU FAISCEAU.
ATTENZIONE - RADIAZIONE LASER INVISIBILE IN CASO DI
APERTURA. EVITARE L ESPOSIZIONE AL
FASCIO.
PRECAUCION - RADIACION LASER IVISIBLE CUANDO SE ABRE.
EVITAR EXPONERSE AL RAYO.
ADVARSEL. - USYNLIG LASERSTR LNING VED BNING, N R
SIKKERHEDSBRYDERE ER UDE AF FUNKTION.
UNDG UDSAETTELSE FOR STR LNING.
ADVARSEL. - USYNLIG LASERSTR LNING N R DEKSEL
PNES. STIRR IKKE INN I STR LEN.
UNNG EKSPONERING FOR STR LEN.
VARNING - OSYNLIG LASERSTR LNING N R DENNA DEL
R PPNAD OCH SP RREN R URKOPPLAD.
BETRAKTA EJ STR LEN. STR LEN R FARLIG.
VARO! - AVATTAESSA JA SUOJALUKITUS OHITETTAESSA
OLET ALTTIINA N KYM TT M LLE LASER-
S TEILYLLE L KATSO S TEESEEN.
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Precautions
1.2 Caution for safety
1.2.1 Precaution related noxious material
It is possible to get harmed from noxious material if you ignore the below information.
(1) Do not touch the damaged LCD. This PRINTER has LCD in control panel. Noxious liquid to human body exists in the
LCD. If it is got into mouth, immediately see a doctor. If it is got into eyes or on skin, immediately wash off over 15
minutes with flowing water and see a doctor.
(2) The toner in a printer cartridge contains a chemical material, which might harm human body if it is swallowed.
Please keep children out of the toner cartridge.
1.2.2 Precaution related electric shock or fire
It is possible to get electric shock or burn by fire if you don't follow the instructions of the manual.
(1) Use exact voltage. Please do use an exact voltage and wall socket. If not, a fire or an electric leakage
can be caused.
(2) Use authorized power code. Do use the power code supplied with PRINTER. A fire can be occurred
when over current flows in the power code.
(3) Do not insert many cords into a outlet. If do, a fire can occur due to a over flow of current in an outlet.
(4) Do not put water or extraneous matter in the PRINTER. Please do not put water, other liquid, pin, clip,
etc. It can cause a fire, electric shock, or malfunction. If it happens, turn off the power and remove the
power plug from outlet immediately.
(5) Do not touch the power plug with a wet hand. When servicing, remove the power plug from the outlet
and do not insert or remove it with a wet hand. Electric shock can occur.
(6) Use caution when inserting or taking off the power plug. The power plug has to be inserted completely.
If not, a fire will be caused due to poor contact. When taking off the power plug, grip the plug and
remove it.
(7) Management of power cord. Do not bend, twist, bind or place other materials on it. Do not use stales
around printer. If the power code gets damage, a fire or electric shock can occur. A damaged power
code must be replaced immediately. Do not repair the damaged part or reuse it. Repairing cord with
plastic tape can cause a fire or electric shock. Do not spread chemicals on the power code. Do not
spread insecticide on the power code. A fire or electric shock can occurred due to a thin(weak) cover on
the power code.
(8) Check whether the power outlet and the power plug are damaged, pressed or chopped. When such
inferiorities are found, repair it immediately. Do not press or chop the cord when moving the machine.
(9) Use caution during thunder or lightning storms. It may cause fire or electric shock. Take the power plug
off under these conditions. Do not touch cable and device duing thender or lightening storms.
(10) Avoid damp or dusty areas. Do not install the printer in dusty areas or around humidifiers. A fire can
occurr. Clean plug well with dried fabric to remove dust. Fire can occur if water is dropped into the unit
or if coverd with dust.
(11) Avoid direct sunlight. Do not install the printer near to a window where it directly contacts to the sun-
light. If the machine contacts sunlight for a long time, the machine will not work properly, because the
inner temperature of machine will get higher. A fire can beoccur.
(12) Turn off the power and take off the plug when smoke, a strange smell, or sound from the machine is
detected. A fire can occur if unit is used under these conditions.
(13) Do not insert steel or metal pieces inside/outside of the machine. Do not put steel or metal piece into
the ventila-tor. An electric shock can occur.
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Precautions
1.2.3 Precaution related to handling the machine.
If you ignore this information, you could get harm and machine could be damaged.
(1) Do not install unit on uneven surfaces or slanted floors.

Please confirm unit is correctly balanced after installation. Machine may fall ove when not balanced cor-
rectly.
(2) Be careful not to insert a finger or catch your hair in the rotating unit.
Be careful not to insert a finger or hair in the rotating unit (motor, fan, paper feeding part, etc) while the
machine is operation.
(3) Do not place any containers of water or chemical or small metals near the machine. If these objects get
into the inner side a fire or electric shock can be occurred.
(4) Do not install machine in areas where moisture or dust exists. For example, do not install machine near
open windows, damage may be caused by these conditions.
(5) Do not place candles, burning cigarettes, etc. on the machine. Do not install it near to a heater. A fire
may occur.
1.2.4 Precautions for when assembly/disassembly
Replace parts very carefully. Do remember the location of each cable before replacing parts, inorder to
reconnect it afterwards. Please perform the below steps before replacing or disassemblying any parts.
(1) Check the contents stored in the memory. All the information will be erased after the main board is
replaced. Write down and needed information.
(2) Disconnect power before servicing or replacing electrical parts.
(3) Remove printer cables and power cord.
(4) Do use formal parts and same standardized goods when replacing parts. Must check the product name,
part code, rated voltage, rated current, operating temperature, etc.
(5) Do not use excessive force when looening or tightening of plastic parts.
(6) Be careful not to drop small parts or objects in the machine.
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Precautions
1.2.5 Disregarding this warnning may cause bodly injury.

(1) Be careful with the high temperature part.
The fuser unit works at a high temperature. Use caution when working on the printer. Wait for the fuser
to cool off before disassebly.
(2) Do not put finger or hair into the rotating parts.
When operating a printer, do not put hand or hair into the rotating parts (Paper feeding entrance, motor,
fan, etc.). If do, you can get harm.
(3) When you move the printer...
This printer is 33kg including developing cartridge and cassette. If you wish to move it, it must be moved
by two people. Do grab the handle at each side and hold the front. If one person tries to move it, it can
cause a physical injury (back born).
(4) Do not install printer on an unstable place.

Do not install the printer on an unstable place. This can cause bodily harm, or damage the printer. It is
33kg, so if you wish to put it on a table, check the table bo be sure the tablet is strong enough to sup-
port the printet.
(5) Do not install a printer on an inclined floor or an unbalanced place. After installation, double check that
the printer is stable.
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Precautions
1.3 ESD Precautions

Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly
called “Electrostatically Sensitive (ES) Devices”, or ESDs. Examples of typical ESDs are: integrated circuits,
some field effect transistors, and semiconductor “chip” components.
The techniques outlined below should be followed to help reduce the incidence of component damage caused
by static electricity.
Caution >>Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off

any electrostatic charge on your body by touching a known earth ground. Alternatively, employ a commer-
cially available wrist strap device, which should be removed for your personal safety reasons prior to apply-
ing power to the unit under test.
2. After removing an electrical assembly equipped with ESDs, place the assembly on a conductive surface,
such as aluminum or copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity
of the assembly.
3. Use only a grounded tip soldering iron to solder or desolder ESDs.
4. Use only an “anti-static” solder removal device. Some solder removal devices not classified as “anti-static”
can generate electrical charges sufficient to damage ESDs.
5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient to
damage ESDs.
6. Do not remove a replacement ESD from its protective packaging until immediately before installing it. Most
replacement ESDs are packaged with all leads shorted together by conductive foam, aluminum foil, or a
comparable conductive material.
7. Immediately before removing the protective shorting material from the leads of a replacement ESD, touch
the protective material to the chassis or circuit assembly into which the device will be installed.
8. Maintain continuous electrical contact between the ESD and the assembly into which it will be installed,
until completely plugged or soldered into the circuit.
9. Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as the
brushing together of clothing fabric and lifting one’s foot from a carpeted floor, can generate static electric-
ity sufficient to damage an ESD.
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REFERENCE INFORMATION
2
2. Reference Information
This chapter contains the tools list, list of abbreviations used in this manual, and a guide to the
location space required when installing the printer. A definition of tests pages and Wireless
Network information definition is also included.
2.1 Tool for Troubleshooting

The following tools are recommended safe and easy troubleshooting as described in this service manual.
• DVM(Digital Volt Meter) • Cleaning Equipments

Standard : Indicates more than 3 digits. Standard : An IPA(Isopropyl Alcohol)dry wipe tissue or a
gentle neutral detergent and lint-free cloth.
• Driver
Standard : "-" type, "+" type (M3 long, M3 short, M2 • Vacuum Cleaner
long, M2 short).
• Brush
• Tweezers
Standard : For general home use, small type.
• Cotton Swab
Standard : For general home use, for medical service.
• Software (Driver) installation CD ROM
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2.2 Acronyms and Abbreviations

The table below explains the abbreviations and acronyms used in this service manual. Where abbreviations
or acronyms are used in the text please refer to this table.
ADC Analog-to-Digital-Conversion EPP Enhanced Parallel Port
AP Access Point F/W Firmware
AC Alternating Current FCF/FCT First Cassette Feeder/First

Cassette Tray
ASIC Application Specific Integrated
Circuit FISO Front-In, Side-Out
ASSY Assembly FPOT First Print out Time
BIOS Basic Input Output System GDI Windows Graphic Device Interface
BLDC Motor Brushless DC Motor GIF Graphic Interchange Format
CMOS Complementary Metal Oxide GND Ground

Semiconductor
HBP Host Based Printing
CMYK Cyan, Magenta, Yellow, Black
HDD Hard Disk Drive
CN Connector
HTML Hyper Text Transfer Protocol
CON Connector
HV High Voltage
CPU Central Processing Unit
HVPS High Voltage Power Supply
CTD Sensor Color Toner Density Sensor
I/F Interface
dB Decibel
I/O Input and Output
dbA A-Weighted decibel
lb Pound(s)
dBM Decibel milliwatt
IC Integrated Circuit
DC Direct Current
ICC International Color Consortium
DCU Diagnostic Control Unit
IDE Intelligent Drive electronics or
DIMM Dual In-line Memory Module Integrated Drive Electronics
DPI Dot Per Inch IEEE Institute of Electrical and

Electronics Engineers. Inc
DRAM Dynamic Random Access Memory
IOT Image Output Terminal (Color print-
DVM Digital Voltmeter er, Copier)
ECP Enhanced Capability Port IPA Isopropy Alcohol
ECU Engine Control Unit IPC Inter Process CommunicationEPP
Enhanced parallel Port
EEPROM Electronically Erasable
Programmable Read Only Memory IPM Images Per Minute
EMI Electro Magnetic Interference ITB Image Transfer Belt
EP Electro photographic LAN local area network
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LBP Laser Beam Printer RAM Random Access Memory
LCD Liquid Crystal Display ROM Read Only Memory
LED Light Emitting Diode SCF/SCT Second Cassette Feeder/Second

Cassette Tray
LSU Laser Scanning Unit
SMPS Switching Mode Power Supply
MB Megabyte
SPGP Samsung Printer Graphic
MHz Megahertz Processor
MPBF Mean Prints Between Failure SPL Samsung Printer Language
MPF/MPT Multi Purpose Feeder/Multi Spool Simultaneous Peripheral Operation
Purpose Tray Online
NIC Network Interface Card SURF Surface Rapid Fusing
NPC Network Printer Card SW Switch
NVRAM Nonvolatile Random Access sync Synchronous or Synchronization
Memory
T1 ITB
OPC Organic Photo Conductor
T2 Transfer Roller
PBA Printed Board Assembly
TRC Toner Reproduction Curve
PCL Printer Command Language ,
Printer Control Language PnP Universal Plug and Play
PCI Peripheral Component URL Uniform Resource Locator

Interconnect by intel 1992/6/22, is
a local bus standard developed by USB Universal Serial Bus
intel and introduced in April, 1993 : VCCI Voluntary Control Council for
A60, B60 Pins Interference Information
PDF Portable Document Format Technology Equipment
PDL Page Description Language WECA Wireless Ethernet Compatibility

Alliance
Ping Packet internet or Inter-Network
Groper Wi-Fi Wireless Fidelity
PPD Postscript Printer Discription
PPM Page Per Minute
PS Post Script
PTL Pre-Transfer Lamp
PWM Pulse Width Moduration
Q’ty Quantity
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2.3 Select a location for the printer

• Leave enough room to open the printer trays, covers, and allow for proper ventilation. (see diagram
below)
• Provide the proper environment :

- A firm, level surface
- Away from the direct airflow of air conditioners, heaters, or ventilators
- Free of extreme fluctuations of temperature, sunlight, or humidity
- Clean, dry, and free of dust
100 mm <Rear Side>
350 mm 350 mm
<Operator Panel>
450 mm
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2.4 Sample Tests Patterns

The sample patterns shown below are the standard test patterns usid in the factory.
The life of the toner cartridge, developer cartridge and printing speed are measured with the pattern shown
below (5%). The 5% and 2% samples are reproduced reduced to 70% of the actual A4 size.
2.4.1 A4 5% Pattern
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2.4.2 A4 2% Pattern
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2.4.3 A4 IDC 5% Pattern
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2.6 Wireless LAN

• This product can be used with a wireless LAN, (this is an option.)
- The wireless LAN function uses radio technology, instead of using LAN cable, to connect to an
access point for printing.
- For a wireless LAN connection in Infrastructure mode an AP is needed, (purchased seperately)
- For a wireless LAN connection in Ad-Hoc mode an appropriate Wireless I/F card is reuired fitted
to a computer, (purchased seperately)
- It is possible to use a wireless LAN connection with wired LAN.
- If an AP is installed in an office or at home, the wireless LAN function can be simply configured
and used.
• Types of desk top PC (or Lap top) that uses the wireless LAN.
Division Basic type Recommend type
CPU Over PENTIUM 233M PENTIUM 300MHz

MEMORY Over 64MB Over 128MB
VIDEO CARD Over 800X600 Over 1024X768
OS Over WINDOWS 98 Over WINDOWS ME
INTERFACE CARD A product has a certificated mark of Wi-FiTM
• About the certificated mark of Wi-FiTM
- Wi-FiTM is a registered trademark of the WECA (Wireless Ethernet

Compatibility Alliance). Over 50 wireless LAN companies are member of
this organisation. Most of the main wireless networking companies are
attending including such companies as Lucent Technologies, Cisco,
Intel/Symbol, 3Com, Enterasys (Cabletron), Compaq, IBM, Nokia, Dell,
Philips, Samsung Electronics, Sony, Intersil, etc.. This mark certifies mutual
compatibility amongst the product of these companies. Wi-FiTM (IEEE
802.1) is certified as a standard of the wireless LAN market.
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Specifications
3
3. Specifications
Specifications are correct at the time of printing. Product specifications are subject to change without notice.
See below for product specifications.
3.1 General Specifications

Items
Print Method Non-impact Electro-photography
Descriptions
Developing system Non-Magnetic, Mono-Component Developing System

Print Speed Mono 20 PPM (A4 size), 21 PPM (Letter size)
Color 5 PPM(A4 size), 5 PPM (Letter size)
Resolution 600 X 600 DPI, 1200 DPI class
Source of Light Laser diode (LSU : Laser Scanning Unit)
Warm-Up Time Less than 2 minutes
First Print Time Mono Less than 15 seconds (Ready to 1st page out)
Color Less than 24 seconds (Ready to 1st page out)
Feed Method Cassette , MPT(Multi Purpose Tray), SCT(Second Cassette Tray)
Media Size 76 X 128mm (3 x 5”) to 216 X 356mm (8.5 X 14”)
Media Thickness Cassette : 16 ~24 lb , MPT : 16 ~ 43 lb
Dimension (W X D X H) 510 X 470 X 405 mm
Weight Net 25.5 Kg
Gross 32.0 Kg
Acoustic Noise Stand by Less than 40 dB
Printing Less than 48 dB(Color)
Power save mode Available
Toner save mode Disable
Machine Life 300,000 Images
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Specifications
3.2 Controller Specification

Items Descriptions
Processor (CPU) Samsung SPGPm(CLOCK SPEED 120Mhz)
Memory FLASH ROM(PROGRAM) : 2MB flash
* RAM : 64MB (Expandable to 192MB) : With Option
Option DIMM module : 64,128MB (SDRAM)
100Pin SDRAM DIMM (Samsung Printer Only)
EEPROM(NVRAM) : 512byte
Emulation SPL-C : win 3.1/95/98/ME/NT/2000/XP
Postscript Level3 : win 95/98 PPD , win NT4.0 PPD , Mac PPD(Over Mac OS 8.6)
Interface Parallel : IEEE 1284 Bidirectional Parallel
- Modes supported : Compatible,Nibble,Byte,ECP
USB(without HUB mode)
- USB 2.0 compliant -12 Mbps 1 port
Network Interface
- 10/100 Base TX
10/100 Base TX + -802.11b Wireless LAN
Interface switching Automatic
Interface time-out 5min (Max.)
Font Postscript 3 internal font 136
Color Management ICC ICM V3.4
* Memory Slots : Standard Capacity is 64MB

Option Capacity is 192MB(Max)
(100Pin 1 slot, 64MB/128MB)
3.3 Electrical Specification

Items Descriptions Remarks
Input Voltage Nominal input voltage 200-240 VAC / 100~127VAC
Input voltage range 189-264 VAC/ 90~132VAC
Nominal frequency 50/60 MHz
Frequency tolerance +3Hz
Power Consumption Printing :450W Avg or less ((with SCF)
Power Save : 35W Avg or less
3.4 Environmental Range

Items Operating Storage
Temperature 15~32.5 ˚C(50-90 ˚F) -20~40 ˚C (-4~104 ˚F)
Humidity 20~80%RH 10~80%RH
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Specifications
3.5 Consumable & Maintenance Items

Periodic Replacing Parts Toner Cartridge(Black) initial(2,000 pages@5% coverage) User replace
market(7,000 pages@5% coverage)
Toner Cartridge(Cyan) initial(1,500 pages@5% coverage) User replace
Toner Cartridge(Magenta) initial(1,500 pages@5% coverage) User replace
Toner Cartridge(Yellow) initial(1,500 pages@5% coverage) User replace
OPC Unit mono : 50,000 images User replace
color : 12,500 images
ITB Unit(T1 Roller) mono : 50,000 images User replace
color : 12,500 images
Waste Toner Tank 3,000 images(Color) User replace
Fuser Unit Mono : 100,000 page Engineer
Color : 50,000 page
Transfer Roller(T2 Roller) simplex : 50,000 page Engineer
duplex : 25,000 page
Pickup Roller simplex : 150,000 page Engineer
Option SCT - Paper capacity : 500sheets
(Second Cassette Tray) - Paper weight : 60 ~ 90 g/m2 / 16 ~ 24 lbs
Network Printing - Ethernet 10/100baseTX
- Protocols : TCP/IP, SPX/IPX, Ethertalk, SNMP, HTTP
1.1, DLC/LLC
- 16MB RAM Buffer for faster graphics performance
- 2MB Flash Memory for upgrade
- Throughput : 200 ~300K TCP/IP
SDRAM DIMM - 64,128MB 100Pin SDRAM DIMM(Use Samsung Part
Only)
Postscript - Flash ROM 4MByte
802.11b Wireless LAN - IEEE802.3b support
- speed : 11, 5.5, 2 ,1Mbps
- Protocol : CSMA/CD
- Operating range : 30m(Indoors) , 150m(Outdoors)
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Specifications
3.6 Paper handling Specifications
3.6.1 input Paper Size
Paper Paper size 1st Cassette 2nd Cassette MP tray Duplex

A4 210 X 297 mm O O O O
Letter 216 X 279 (8.5 X 11") O O O O
Folio (Legal13") 216 X 330 (8.5 X 13") O O
Legal (Legal14") 216 X 356 (8.5 X14") O O
Executive 184 X 267 (7.25 X10.5") O
Statement 140 X 216(5.5 x8.5") O
ISO B5 176 X 250 O
JIS B5 182 X257 O
A5 148.5 X 210 O
A6 105 X148.5 O
Com-10 Envelope 105 X 241 (4.15 X 9.5") O
Monarch Envelope 98 X191 (3.87 X 7.5") O
DL Envelope 110 X 220(4.33 X 8.66") O
C5 Envelope 162 X 229 (6.38 X 9.01") O
C6 Envelope 114 X 162 (4.49 X 6.38") O
Transparency (OHP) A4 or Letter O
Label paper A4 or Letter O
O : Enable
3.6.2 Input Capacity

Cassette(FCT) 250 sheets
MP tray Paper 100 sheets
Transparencies 30 sheets
Envelopes 10 sheets
Labels 10 sheets
Option Cassette(SCT) 500 sheets
3.6.3 Output Capacity

Face Down 250 sheets
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Summary of product
4
4. Summary of Product
4.1 System Structure

This chapter describes the functions and operating principals of the main components.
4.1.1 Main Parts of System
Deve Cover
SCT
FCT
HVPS
DEV. - Yellow
DEV. - Magenta
DEV. - Cyan
CASSETTE
DEV. - Black
SCF
LSU
PTL
PTL
SCF Path
OPC
ITB Unit
EXIT
EXIT
Pick-up
Pick-up
Roller
Roller
UnitUnit
Fuser Unit
Eraser Lamp
DUPLEX
Feeder
T2 Roller
Pick-up
Roller
MP
MPF Path
TF
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Summary of Product
>> Front View
Panel PBA
Waster Toner Sensor
Deve OEM
PBA Waster Toner Motor
>> Rear View
Deve Drive
Fuser Fan Deve Drive PBA
Main Drive Deve Cover

Open S/W
Duplex Cover
Open S/W
SMPS
Controller PBA
Conrtoller
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Summary of product
1) OPC Unit
The OPC Unit creates image uing electric photo process, and it consists of:-
* OPC Drum
* Waste Toner Ass'y used to collect waste toner remaining on the OPC drum,
* Charge Roller Assy
* Etc.
2) ITB Unit
ITB stands for Image Transfer Belt. An image developed on the OPC Drum is transferred first to the
ITB. This is called T1 Transfer (Primary Image Transfer).
Images are built up in layers on the ITB.
First the Cyan (C) colour image is created on the OPC and transferred to the IRB
Next the Magenta (M) colour image is created on the OPC and transferred to the IRB
Followed by the Yellow (Y) and Black (K) images.
3) Transfer Roller
Once the complete, full colour, image, has been built up on the ITB the Transfer Roller is used to
transfer the image onto paper. This is called the T2 Transfer (Secondary Image Transfer)
4) FCT (First Cassette Tray)

It stores and automatically feeds print paper.
Pick-up Roller picks up paper, controls drive, feeds paper, removes static electricity, and so on.
> Spec.
* Paper arrange way : Side Registration
* Paper Direction : FISO (Front-in, Side-Out)
* Cassette Type : A4, Ltr
* Paper Discharge : Separation Claw
* Capacity : 250 Sheets (Standard paper 75mg/m? 20lb)
* Paper Size : A4, Letter
* Paper Weight (average) : 60~90g/m2 (16~24lbs)
* Paper Type : General Printing Paper
* Additional Function : Paper Empty Sensor
5) SCT (Second Cassette Tray)

This additionally stores and automatically feeds printing paper. Its function is the same as the FCT
(First Cassette Tray)
> Spec.
* Paper arrangement : Side Registration
* Paper Direction : FISO (Front-in, Side-Out)
* Cassette Type : A4, Ltr
* Paper Discharge : Separation Claw
* Capacity : 500 Sheets (Standard paper 75mg/m2 20lb)
* Paper Size : A4, Letter
* Paper Weight (average) : 60~90g/m2 (16~24lbs)
* Paper Type : General Printing Paper
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Summary of Product
6) MPT (Multi Purpose Tray)

The Multi-Purpose Tray not only feeds general printing paper but is also used for many other kinds
of paper such as those paper sizes not supported by the cassette, envelopes, OHP, etc.
> Spec.
* Capacity : Cut Sheet : 100 Sheets (Standard paper 75mg/m2 20lb)
* OHP : 300 Sheets
* Envelope & Label & Card Stock : 10 Sheets
* Paper Arrangement : Side Registration
* Power : Main Motor (BLDC)
* Driving Management : Solenoid
* Paper Discharge : Friction Pad Method
* Paper Size : Legal, Folio, A4, Letter, Executive, JIS B5, A5, A6
* Paper Weight (Average) : 60~163g/m2
* Paper Type : General, Label, Post Card, Transparency, Envelope, Card Stock (Tracing
Paper is not served)
7) Feeder
* Paper Arrangement : Side Registration.
* Paper Management : Solenoid
8) Duplex Unit
The Duplex Unit is used to reverse feed paper when printing on the second side (known as Double
sided or Duplex printing). The Duplex Unit is not an optional extra, it is built-in at manufacturing
time and is integral with the Transfer Roller.
> Spec.
* Paper Reverse Function: After the front side of the original document is printed, it trans-
fers the printing paper to duplex unit for printing the reverse side of original document
which is reverse fed by the exit roller.
9) Exit Unit
The Exit Unit guides paper that is just about to leave the print engine. Printed-paper is discharged
by Exit Roller and Kicker into the Output Tray.
> Spec.
* Capacity : 250 sheets (Standard A4, 75g/m2)
* Paper Direction : Face Down
* Exit Drive Roller : It is driven by Main Motor (BLDC), and it rotates clockwise for normal
feed and antic-clockwise when reverse feeding for duplex printing.
* Bin Full Sensor : There is no Bin Full sensor fitted on this model.
10) Toner Cartridge

There are four toner cartridges, each containing a different colour ink : C (Cyan), M (Magenta), Y
(Yellow) , and K (Black).
Each one of these toner cartridge is independent and can be changed independently.
11) Fuser Unit

This unit consists of 2 pieces of the Heat Lamps, 2 pieces of Heat Rollers, Thermistor, and 2 pieces
of Thermostat. It melts and fuses the toner, transferred by the transfer roller onto the paper, by
applying pressure and high temperature to complete printing job.
12) LSU
This is a core part of LBP. It forms a latent image on the surface of OPC drum using a static
charge.
* Resolution: Real 600 dpi
Service Manual
4-4
Samsung Electronics
Summary of product
13) Main Drive Unit

This motor drives, by way of a gearbox, the OPC unit, ITB unit, feeder unit, fuser unit, exit unit and
duplex unit.
> Spec.
* Power : 20W Max (24V)
* Drives : OPC unit, ITB unit, Fuser, Feeder, Duplex unit, Exit unit
14) DEVE Drive Unit

This motor drives, by way of a gearbox, the toner cartridges and ITB cleaning cam.
> Spec.
* Power : 200W Max (24V)
* Drives : DEV (4 Color)/ITB Cleaning)
15) SMPS (Switching Mode Power Supply)

This power supply uses the AC supply voltage to generate the DC voltages used by the system.
The SMPS has 3 output channels (+3.3V, +5V, +24V).
The AC Heater Control Unit that supplies power to fuser is also located on the SMPS.
16) HVPS (High Voltage Power Supply)

The HVPS creates the high voltages (Charger, Supply, T1, T2, Developer) used for the electro pho-
tographic process. The high voltage is created from the 24V line from the SMPS. High Voltage out-
put is supplied to the toner cartridge, OPC drum unit, ITB unit, and Transfer roller.
17) Main Controller PBA

The Main controller PBA is very important as it is the heart of printer. It has several major function
blocks.
* CPU Block: This manages the printing order from host, creates bitmap data for the engine to print
and controls various devices that are needed to operate the printer.
* Image Processor Block: This manages images and controls various kinds of I/O
* Memory Block : The operating system uses this to store video data and printing orders given by host.
* ROM Block : The printer OS and PDL Interpreter are stored here.
* In addition there are USB 2.0 Block, IEEE 1284 Block, Option Block, OPE Panel, etc.
18) DEVE Drive PBA

Each toner cartridge requires a different HV. This unit takes its HV source from the HVPS and
modies this for each cartridge. This section also contains the DEVE motor, DEVE clutch, and DEVE
solenoid drives. These are activated in sequence as required by the printing process
19) DEVE OEM PBA

This detects new or used toner cartridges and also checks that cartridges are approved parts. If a
toner cartridge is not suitable for the machine an error message is displayed.
20) Waste Toner Ass’y

This transfers waste toner from the OPC drum and ITB to the Waste Toner Tank.
After the toner image is transferred, it uses a cleaning blade to scrape the waste toner and toner
collecting coil to collect the waste toner, and transfers collected toner to the waste toner tank.
Service Manual
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Samsung Electronics
Summary of Product
4.1.2 Motor & Fan Layout
1. Main Motor
2. DEVE Motor
3. Fuser Fan
4. Waste Toner Motor
NO. Name Description

1 Main Motor Drives the OPC unit, ITB unit, feeder unit, fuser unit, exit unit and
duplex unit.
2. DEVE Motor Drives C, M, Y and K toner cartridges and ITB cleaning cam.
3. Fuser Fan Forces cold air into the printer and takes out heat from the fuser.
4. Waste Toner Motor Transfers collected waste toner from the OPC drum and ITB to the
waste toner tank. (Refers to front view picture on 4-2 page)
Service Manual
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Samsung Electronics
Summary of product
14.1.3 Clutch & Solenoid Layout
Duplex Solenoid
ITB Cleaning
Solenoid
Cartridge Solenoid(C, M, Y, K)
T2 Home Solenoid Black Deve

Clutch
Yellow Deve Clutch
Magenta Deve Clutch
Cyan Deve Clutch
Feed Regi
Clutch
MP Pick_up Pick_up Solenoid

Solenoid
>>Solenoid
1. Y DEVE solenoid It is yellow color toner cartridge, and controls a flow of high volt-
age.
2. M DEVE solenoid It is magenta color toner cartridge, and controls a flow of high
voltage.
3. C DEVE solenoid It is Cyan color toner cartridge, and controls a flow of high volt-
age.
4. K DEVE solenoid It is Black color toner cartridge, and controls a flow of high volt-
age.
5. Pick-up solenoid It controls drive of pick-up roller.
6. MP Pick-up solenoid It controls drive of MP pick-up roller.
7. Duplex solenoid When operating duplex print, it reverses rotation of main motor
for paper to be gotten into duplex unit.
8. T2 Home solenoid It engages/disengages transfer roller for the roller to be pressed

or separated to/from ITB.
9. ITB cleaning solenoid It operates ITB cleaner for pressing or separating cleaning blade
of ITB to/from ITB.
Service Manual
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Samsung Electronics
Summary of Product
>>Clutch
1. Yellow DEVE clutch Controls Yellow color toner cartridge drive
2. Magenta DEVE clutch Controls Magenta color toner cartridge drive
3. Cyan DEVE clutch Controls Cyan color toner cartridge drive
4. Black DEVE clutch Controls Black color toner cartridge drive
5. Feed Regi. Clutch Controls the location of picked-up paper
4.1.4 Sensor & Micro S/W Layout

1. Paper Empty Sensor(FCT) It detects emptiness of paper from the FCT
2. Paper Empty Sensor(SCT) It detects emptiness of paper from the SCT
3. Paper Empty Sensor(MPT) It detects emptiness of paper from the MPT
4. Feed Sensor This sensor must operate within a certain time since paper
pick-up otherwise a JAM is detected
5. ITB Home Sensor This detects the position of the image transfer belt, and in
dicates the start location for image writing. It is used to ensure
that all 4 colour images are correctly registered.
6. CTD Sensor This stands for Color Toner Density Sensor. It detects toner
density of each color image that is formed on the OPC drum.
7. Waste Toner Sensor This detects whether the waste toner tank is mounted or not and
the amount of waste toner in the tank.
8. Exit Sensor This detects whether printing paper is discharged or not.
9. DEVE Cover Open S/W This detects the open/closed status of the DEVE Cover.
10. Duplex Cover Open S/W This detects the open/closed status of the Duplex Cover.
Note: * ITB Home Sensor and CTD Sensor are located in the ITB unit. If they develop a fault replace the
ITB unit.
* Please, refer to the Chap. 7 Arrangement and Adjustment, "Paper Path diagram", for the location
of the paper empty sensor, feed sensor, and exit sensor.
* Please, refer to page 4-2 for the location of the waste toner sensor, DEVE cover open S/W, and
duplex cover open S/W.
Service Manual
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Samsung Electronics
4-9
Summary of product
Service Manual
CN10 ITB
CN17 WASTE TONER
EXIT CN19 CN7 HVPS
DUPLEX CN24 CN15 TH3 CN11 PTL CN4 PANEL
T2 HOME CN26
BLDC1 CN27
FSR_ROLL CN28
FUSER_FAN CN29
CN9 NIC
USB
SMPS CN30
MP EMPT CN30 CN1
MP SOL CN32 Parallel Port
FEED CN33
4.1.5 Main Controller PBA
Samsung Electronics
PICK_UP CN25 CN5 DRIVER
CN16 SCF CN12 LSU
CLT_FEED CN23 CN14 LSU SW
CN6 OPC KEY
EMPT CN21 CN8 EASER
CN35 LSU_FAN
Samsung Electronics
OSC2 FLASH MEMORY
OSC3 12MHz
19.900614MHz
OSC4
30MHz
OSC1
12MHz
Summary of Product
Service Manual
LPEC1
(ENGINE CONTROL) DIMM RAM SPGPm2
Main Control
4-10
Summary of product
NPC / (W-LAN)
Flash Memory PowerPC
Optional LPEC1
2MB 266 (300) MHz
Full Function
Engine
ROM DIMM SDRAM Control
16 MB SPGPm 64MB Bloc k
SDRAM DIMM
32MB~128MB
5 pin UART
Panel EEPROM
16x2 LCD 4k bit USB 2.0
1) CPU BLOCK
It controls entire devices in a control board by using 120MHz - 32bit RISC process (ARM946EX
Core), and it creates bitmap data to engine to print an image by managing printer job taking from
host. Power PC is connected to SPGPi (Image Processor), and the CPU block controls various
devices by taking support from it. The BUS drives with 32 bits, 50 MHz.
2) Image Processor Block

By applying SPGPi, it interfaces with power PC.
It is controller by power PC, and it manages image and controls I/O.
> It’s rolls and functions.

* Power PC Comapatible Interface
* 3 Memory Bus Architecture
- ROM Bus, Primary DRAM Bus, Seconday SDRAM Bus for Band Buffer
* Direct connected to 4 ROM Banks
- 16 MByte Address Space per Bank
- Burst Capability
- Programmable Timing per Bank
* Direct connected to max 6 I/O Banks of ROM Bus
- 64 MByte Address Space per Bank
* Direct connected to max 3 I/O Banks of DRAM Bus for DMA
- 8 KByte Address Space per Bank
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Samsung Electronics
Summary of Product
* Direct connected to max 9 DRAM / SDRAM Banks

- Support EDO or FPM Type DRAM and SDRAM
- Max 128 MByte Address Space per Bank
- Programmable Timing to Control DRAM / SDRAM A.C Characteristics
- Support Self Refresh for Data Retention
* Direct connected to 1 SDRAM Banks using Secondary Bus for Band Buffer
- Support SDRAM only
- Max 512 KByte Address Space
- Programmable Timing to Control SDRAM A.C Characteristics
- Support Self Refresh for Data Retention
- Bus Traffic Sharing using Secondary Bus
* Graphic Coprocessor Core for Banding support of Printer Languages
- Support up to 256 Bit Block Transfer
- Scan Line Transfer
- Polygon Filling
- Enhanced Graphic Order compared to SPGP, SPGPe+
- Access to Secondary Bus
* Parallel Port Interface Controller
- DMA based or Interrupt based Operation
- Support IEEE Standard 1284 Communication
* UART
- 4 Independent Full Duplex UART (Interrupt Based Operation Only)
- max 16 Byte FIFO to Handle SIR Bit Rate Speed
* DMA
- 3 Channel General Purpose DMA Controller for High Speed I/O
- 8 bit, 16 bit, 32 bit Data Transfer Mode Support
* Timer
- 3 Independent Programmable Timer
- Watch Dog Timer for S/W Trap and Tone Generator for MFP Application
* RSH
- Fully H/W Rotator, Scaler and Halftoner
- Variable Image Scaler and Image Halftoning Unit for PCL6
* Compression / Decompression
- 3 Different Kinds of Codec Algorithm
- jCodec : Powerful T.85 JBIG Algorithm for Bi Level Image Compression
- gCodec
- Simplified JBIG Algorithm for Band Compression, coupled with GEU
- HCT : Halftone Compression Technology (Byte Run-Length Type)
- Independent Compression & Decompression Data Path of Each Codec
* Printer Video Controller
- 2 Different Kind of Printer Video Controller (Selected by S/W)
- High Performance DMA based Interface to Printer Engine
- PVC : Printer Video Controller without RET Algorithm
- HPVC
- Printer Video Controller with RET Algorithm
* Package : 352 pin BGA
* Power
- Core : 2.5 V
- IO : 3.3 V
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Samsung Electronics
Summary of product
3) Memory Block (PCL6 Model)

Memory operates program, stores video data and printing jobs from host. Its capacity is basically
32MB, and for expansion DIMM module can be mounted by using SODIMM connector for option.
Module services 16MB~12MB, and has total 160MB memory.
Memory controller located in SPGPi controls a memory, and the memory uses SDRAM.
The Bus drives with 32 bits, and MHz.
4) ROM Block
ROM uses flash memory, and OS and PDL Interpreter are built-up.
Its capacity is 8MB, and ROM controller mounted in SPGPi controls it. When initializing after power
on, it joins a memory and operates in the memory. It develops capacity of entire system.
5) USB 2.0 Block

It supports high speed (480Mbps). It becomes possible by Net 2270 of Netchip co. and it connects
to DMA bus of SPGPi to do DMA accessing I/F.
6) IEEE 1284 Block

IEEE 1284 controller mounted to SPGPi controls it, and ECP mode is supplied.
7) Option Block
By mounting connector (100pin) for option, Ethernet card can be attached. It can be connected to
I/O bus of SPGPi with 16 bits.
8) OPE Panel
OPE panel is controlled by UART Block located in SPGPi, and it informs status of a printer and
helps user to setup a printer. Various data is transferred through series interfaces between
Mycoms located in panel and UART of SPGPi.
9) Memory
There are a program memory that uses flash and a working memory that uses SDRAM. When
printing, it functions as band memory.
10) LSU Control

It drives P/Motor, and controls auto power and LSU On/Off.
11) Sensor
It controls various sensor’s operation such as paper empty sensor, feed sensor, exit sensor, CTD
sensor, ITB sensor, and so on.
12) Actuator Control

It drives a main motor for OPC/ITB, a DEVE motor for a developer, a solenoid for switching a
developing high voltage, and clutch for power delivery/control.
13) ADC
It detects a charging, T1/T2 transfer voltage, and a fusing temperature.
14) DAC
It outputs LD current by comparing LD current that detects as ADC to standard amount, and con-
trols current of TR.
Service Manual
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Samsung Electronics
Summary of Product
4.1.6 SMPS (Switching Mode Power Supply) PBA
It consists of SMPS unit that supplies DC power for driving a system and AC heater control unit that supplies
power to a fuser.
1) DC output
- Main controller PBA, OP panel, SCF, Developer driver PBA
2) AC output
-Fuser unit (Heat lamp, Thermostat)
3) Output voltage
NO Item CH1 CH2 CH3 CH4
1 Channel name +3.3V +5V +24.0V +24.0VF
2 Rated outputting voltage 3.3V ± 4% +5V ± 4% +24V + 15%/-10% +24V + 15%/-10%
3 Uses MICOM,CMOS MICOM,CMOS MOTOR,FAN MOTOR,FAN

LOGIC LOGIC
CON4
CON3 CON4
CON3
CON1 CON2
CON1 Fuse CON2
Service Manual
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Samsung Electronics
Summary of product
4.1.7 HVPS (High Voltage Power Supply) PBA
The HVPS PBA uses the 24V created by the SMPS to generate the high voltages used by the charger,
supply, T1,T2 and DEVE processes. For bests quality images these high voltages must be , These supplies
must be controlled accurately to maintain the print quality The high voltages produced are supplied to toner,
OPC cartridge, ITB unit, and transfer roller.
T1 T2
SUPPLY
CHARGER
CN1 CN2
T1 T2
SUPPLY
CHARGER
CN1 CN2
Service Manual
4-15
Samsung Electronics
Summary of Product
1) Charging Voltage: Charger

* Function : This high voltage is used to charge the surface of the OPC to about -500volt~800volt.
* Output voltage : -1.0KV~-2.0KV DC °æ 50V
* Error type :If MHV was not present, the surface of the OPC is not charged. As a result, toner on
the developer roller is transferred over to the OPC drum: therefore, black paper could
be printed out.
2) Transfer high voltage: T1(+)

* Function : This high voltage is used to transfer toner from the OPC drum to the ITB unit.
* Output voltage : Max +2.0KV °æ 3% (Duty is changeable, no loading)
* Error type : If T1 was not present, it is not possible to transfer toner from the OPC drum to the
ITB. As a result, printer output could be faint.
3) Transfer High Voltage: T2 (+)

* Function : this high voltage is use to transfer toner from the ITB to the paper.
* Output voltage : Max +5.0KV °æ 3% (Duty is changeable, no loading)
* Error type : If T2 was not present, it is not possible to transfer toner from the ITB to the paper. As
a result, printing output could be faint
4) Cleaning voltage: T2 (-)

* This high voltage is used to transfer (-)toner, remains on transfer roller, from the Transfer Roller
to the ITB unit.
* Output voltage : There is no feedback control, and it outputs a fixed voltage (-120V).
* Error type : Toner contamination occurs on the reverse side of the printed-paper.
5) Developing voltage: DEV

* Function : This high voltage is used to develop toner due to a potential difference on the part
of the OPC exposed to the LSU (Laser Scanning Unit).
* Generally, when printing, the exposed portion of the OPC is charged to -50 volt and the DEV is
at -350 volt: therefore, toner of (-) polarity is transferred onto the exposed section.
* Output voltage : -200V~600DV DC20V
* Error type : 1. In case that DEV is GND, density gets extremely low.
2. If DEV is floating due to an unstable contact point at the HV terminal, density gets
extremely heavy.
6) Supplying voltage: Supply

* Function : This high voltage is used to supply toner to the developer roller.
* Output voltage : -400V~800V DC 50V (Using ZENER, DEV is connected)
* Error type: 1. If this voltage is GND, print density is extremely low.
2. If this voltage is floating due to unstable contact point at the HV terminal, density
becomes so low as that printing results are not visible to the naked eye.
Service Manual
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Samsung Electronics
System Outline
5
5 System Outline
This chapter describes the functions and operating principals of the main components.
5.1 CLP (Color Laser Printing) Process

5.1.1 OPC Drum Unit (Charge Section)
The OPC Unit is the image formation unit and it consists of the OPC drum, waster toner assembly, charge
roller assembly, etc. (see diagram below).
OPC Drum
Cleaning Blade
Charge Roller
Waste Toner Tank
-1000V ~ -2000V
Eraser Lamp
LSU
Charge Roller Charge Bias
HVPS
1) Structure
* OPC drum: The laser light coming from the LSU forms an latent electric image on the surface of
the OPC drum.
* Cleaning Blade: Removes remaining unwanted toner from the OPC drum.
* Waste toner tank: Collects and stores the waste toner.
* Charge roller: The charge roller is charged to a negative high voltage (-1KV~2KV) It is in contact
with the OPC drum and produces a uniform (-) voltage on its surface of approximately -500~-800V.
2) Type
* Life span: 50K Images (Color 12.5K)
* Waste toner removal: Transferred to a user replaceable tank
* Waste tank sensors: LED type, detects tank present and tank full
* OPC drum diameter: 120mm
* Power: Main motor (BLDC)
* Charging method: Charge roller
* Eraser method: LED lamp (+5V/2Pin)
* PTL: LED lamp (+5V/2Pin)
Service Manual
5-1
Samsung Electronics
System Outline
5.1.2 LSU (Exposure)

The bitmap image data stream is used to switch the LSU data beam. Where white paper is
required the beam is off, where ink is required the beam is turned on. When the laser is on
and the beam strikes the OPC drum surface the charge is reduced to -170V, where the beam is
switched off the charge on the OPC surface remains at -960V. In consequence a latent image is
formed on the drum surface.
-960V -960V
-170V
Service Manual
5-2
Samsung Electronics
System Outline
5.1.3 Toner Cartridge (Development Section)
In the development stage toner particles are transferred from the toner cartridge onto the surface
of the OPC drum. The OPC drum and the developer roller rotate in opposite directions. Toner on
the developer roller is charged to the developing voltage (see page 5-7). Toner is attracted to the
OPC drum in those areas where the OPC drum surface charge is -170V. Toner is not attracted to
those areas of the surface carrying a -960V charge.
DEV. - Black
DEV. - Yellow
OPC
OPC
Dev Roller DEV. - Magenta
Drum
DEV. - Cyan
Developing
Voltage
1) Type
* Developing method: Non-magnetic, Mono-component developing system.
* Toner cartridge order: K, Y, M, C from top.
* Developing sequence: Y, M, C, K
* Life span: 7K(K) / 5K(C, M, Y)
* Power: DEVE motor (BLDC)
* Power transmission: Electric clutch
* Toner remaining: TRC sensor (see page 5-7) + Dot counting method
Service Manual
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Samsung Electronics
System Outline
2) Developing state of color

The page image is built up from each of the 4 colors and transferred to the paper as described below.
> Developing sequence: Y, M, C, and K
1) A latent image containing only yellow toner is

created on the OPC drum and then transferred
onto the ITB. Yellow Color Developing and Image Transfer
2) A latent image containing only magenta toner
is created on the OPC drum and then trans-
ferred onto the ITB to add to the yellow image Magenta Color Developing and Image Transfer
already in the ITB.
3) A latent image containing only cyan toner is
Cyan Color Developing and Image Transfer
onto the ITB, adding to the 2 colors already
present on the ITB
Black
Blacl Bolor
Color Developing and Image Transfer
4) A latent image containing only black toner is
onto the ITB, creating an image on the ITB
Paper Take-up
consisting of the 4 colors.
5) The Image on the ITB is secondly transferred
onto paper using the T2 transfer roller. Image Transfer to page
6) The image on the page is then fused and the
paper is ejected into the output tray.
Fusing
Cleaning of
Image Transfer Belt
3) Toner cartridge empty detection
Paper Exit
Software Dot count, Roller count + TRC Sensor
Service Manual
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Samsung Electronics
System Outline
5.1.4 Image Transfer Section
The toner image formed on OPC drum is transferred to the ITB (Image Transfer Belt), this is called the
primary image transfer. When the final image has been built on the ITB it is transferred onto paper, this is
called the secondary image transfer.
1) Structure
3
6 5
4
OPC DRUM DUPLEX
Paper Path

1. Image Transfer Belt Used to build up the 4 color image from the OPC drum.
Colors are transferred in the order Y, M, C, K
2. Image Transfer Belt cleaner After the final image is transferred onto paper any waste
toner is removed from the transfer belt using this cleaning
blade
3. PTL (Pre-Transfer Lamp) The primary image transfer to the ITB is made more efficient
by the use of a PTL
4. CTD (Color Toner Density) sensor This sensor is used by the engine to monitor the density of
toner deposited on the OPC drum. It is also used as an indi-
cation of 'Toner Empty'
5. Image Transfer Roller (T2 Roller) This transfers the final toner image on the image transfer belt
to paper.
6. ITB Home Sensor This sensor is used to ensure that each of the 4 color
images starts at exactly the same point on the ITB. It works
by detecting a fixed point on the belt.
Service Manual
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Samsung Electronics
System Outline
2) Primary Image Transfer

A colored page is image is split into 4 component color parts and developed one color at a time in
turn on the OPC (in the order Y, M, C, K). The final image is built up on the ITB by transferring
these separate color images from the OPC drum.
Image Transfer Belt
Image Transfer Roller
OPC DRUM DUPLEX HVPS

Primary Image Transfer Bias
3) PTL (Pre-Transfer Lamp)

An erasure lamp is used to completely discharge the OPC drum surface before the image is creat-
ed on it. Before the image is transferred from the OPC drum to the ITB a PTL (pre-transfer lamp) is
shone on the surface to reduce the remaining surface charge making it easier for toner to be trans-
ferred from the OPC surface onto the ITB..
Image Transfer Belt
PTL
(LED)
OPC DRUM DUPLEX
Service Manual
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Samsung Electronics
System Outline
4) CTD (Color Toner Density) Sensor

The CTD sensor detects density of toner of each of the 4 colors formed on OPC drum, and CTD
controller decides an optimum developer bias voltage value for printing.
* Structure: An Infrared LED is used as a sending unit and PDs (Photo Diodes) are used as a
receiving unit. A PBS (Polarized) Bean Beam Splitter) is used to separate transmitted
light from the LED and reflected light from the OPC / toner surface.
* Principal: The OPC surface and toner have different light reflecting characteristics. The OPC
surface produces a specular reflection whilst the toner produces a scattered reflection.
By detecting this difference the amount of toner present on the OPC surface can be
measured by the sensor.
* Caution: Be careful not to contaminate the surface of the CTD sensor, as this will cause
problems with color reproduction and quality.
* Process: The TRC (tone reproduction Curve) control process is used at power on, after waking
from sleep mode , after every 100 pages of printing, and after replacing a developer by
new one to check the toner density transferred onto the OPC. Small patches of 6.25%,
25%, 37.5%, 50%, 62.5%, 75%, 87.5%, and 100% density for each of the 4 colors are
deposited on the OPC drum surface and the CTD is used to detect how much toner is
transferred. Based on an internal calibration curve the TCR control process adjusts the
developer bias voltage to ensure that optimal toner transfer takes place.
TONER OPC Drum
ITB Unit
CTD Sensor PBS(Polarized Bean Splitter)
LED PD(Photo Diode)

OPC DRUM
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Samsung Electronics
System Outline
5) Secondary Image Transfer

The image is built up on the ITB (primary image transfer). This image is then transferred onto paper
using the T2 transfer roller (roller transfer system) this process is known as the secondary image
transfer.
* The HVPS applies the Image Transfer Bias voltage to the Image Transfer Roller (T2), this
transfers the image from the belt onto the paper.
* When the image is to be transferred from the ITB to the paper the image transfer roller
pressure contact solenoid is activated and this activates a cam which moves the T2 roller
into contact with the belt.
*After the transfer has taken place any remaining charge on the paper is removed by
applying a charge removal bias (generated in the HVPS) to a charge removal plate
>Type
* Transfer method: Semi-conductive roller contact method
* Effective transferring range: 218mm (i.e. maximum image length)
Image Transfer Belt
Charge Removal Bias
OPC DRUM Paper
Image Transfer Bias HVPS
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Samsung Electronics
System Outline
5.1.5 Fuser (Fusing Section)
Toner that has been through the primary and

secondary image transfer processes is fixed,
semi-permanently, to the paper. Heat Lamp Heat Roller
The fuser unit consists of heat lamps (2 ea), heat (500W)
rollers (2 ea), thermistor, and thermostats (2 ea). It
melts the toner onto the paper using pressure and
high temperature to complete the printing process.
Heat Lamp Paper
1) Thermostat (2pieces) (300W)
If the heat lamps or heat rollers overheat the Heat Roller
thermistor turns off power to the lamps in the Spring
fuser unit to prevent fire. It is a temperature
cut-off device.
2) Thermistor
The thermistor detects the temperature of the heat roller's surface, and feedbacks the information
to the main processor which uses this information to control power to the fuser lamps in order to
maintain the heat roller at a steady temperature.
3) Heat Roller (2pieces)

Halogen lamps are used to heat the heat rollers. The heat rollers have a special Teflon surface
which ensures that any melted toner which comes into contact with the heat roller surface does not
stick. Paper passes between the two rollers which evenly heat the paper from both sides to melt
the toner and semi-permanently fix it to the paper.
4) Safety Information
> Overheat protection
* 1st level protection: Print engine is stopped if overheat is detected
* 2nd level protection: Software turns off lamp power if overheat is detected.
* 3rd level protection: Thermostat turns off lamp power if overheat is detected.
> Protecting device
* Fuser unit power is turned off when
the duplex cover or the toner
cartridge door is open.
* This machine keeps the surface
temperature of the fuser unit cover
under 80°C, and it has a caution
label attached inside the exit cover
where it can be easily seen by the user.
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Samsung Electronics
System Outline
5.1.6 Exit
After passing through the fuser paper is ejected into the paper exit tray. Any static electrical charge
is removed by static discharge brushes.
When operating in duplex print mode, after printing the front side of the page, the paper exit roller
reverses to feed the paper back into the machine in order to print the second side of the page.
5.1.7 Waste Toner Collection Process

Waste toner on the OPC drum and on the image transfer belt is collected into the waste toner tank.
* After transferring the toner image on the OPC drum to the ITB, a cleaning blade scrapes waste
toner from the OPC drum, and the waste toner is collected into a waste toner tank.
* An Image Transfer Belt cleaner scrapes waste toner from the image transfer belt, and the waste
toner is collected into a waste toner tank.
1) Waste toner tank sensor

A waste toner sensor detects the presence of the waste toner tank and also detects if the tank is full.
This is an On / Off detection. Do not operate the printer without a waste toner tank.
> No waste toner tank

When the waste toner tank is not installed the waste toner senor
actuator blocks light from the senor LED.
Waste Toner Sensor
Waste Toner Sensor Actuator
> A little waste toner

When the sensor LED light reaches the photo sensor passing
through the waste toner tank this indicates that the tank is not full. Waste Toner Sensor
Waste Toner Tank
> Waste toner tank full

When the waste toner tank is full to the level of the waste toner
Waste Toner Sensor
sensor, the senor LED light is blocked by waste toner indicating
that the tank is full.
Waste Toner Tank
Waste Toner Tank
Waste Toner Tank
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Samsung Electronics
System Outline
5.2 Outline of Engine Firmware

The CLP 500/500N use 4 different colored toners (Yellow, Magenta, Cyan, Black) and it is a laser color
printer. Engine firmware controls the print processes, driving the print engine, paper feed, developer, fuser,
and paper discharge systems. It has both color and mono printing modes. The printer process sequence is
as follows:
When turning on a power of a printer, entire values of system

System Initialization are initialized
Warm-Up Each part of system becomes drive, and a system automatically

checks its status and prepares other preparatory job for printing.
Ready It is a status to complete for printing job. As soon as a host

gives a printing order, it starts to print. Power save mode is
included.
Pre-Print Since printing order is inputted from host, printer checks status
of each part before performing printing job.
Print Printer performs actual printing job.
Post-Print It is a finishing state of printing job.
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Samsung Electronics
System Outline
5.2.1 System Initialization
The system initialization process is carried out immediately after power on. The following tasks are performed.
1) Initialize ASIC (EPLD)
2) Initialize system variables
3) Initialize a virtual timer
4) Initialize fuser control
5) Initialize ADC
6) Set-up ITB HOME interrupt
5.2.2 Warm-Up
In the warm-up stage, the following tasks are performed.
1) Self Test
* System error check
* Cover open check
* Device (ITB, OPC, DEVE cartridge) check
* Heating error check
* Motion of motor and jam & paper empty check
* Check Feed and exit sensors. If paper is detected it is ejected. If the paper detection is not
cleared a jam recovery is carried out and the paper drive unit is instructed to drive for the
maximum permitted paper length.
2) Heat Control
The heater control unit separately manages the temperature of the heat lamps.
* Target temperature (165°C)
* Temperature below 130°C - heat unit fully on,
* Temperature above 135°C temperature is controlled by reading the temperature value
every 10msec.
3) TRC (Toner Reproduction Curve)

The TRC process (see page 5-7) is carried out and the developer bias voltage determined.
4) Cleaning
Transfer rollers, OPC and ITB are electrically and mechanically cleaned.
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Samsung Electronics
System Outline
5.2.3 Ready
1) Host interface is monitored for print commands

2) Heat control
* Target temperature (165°C)
* Every 40 seconds, temperature value for the previous 250ms is read and a proportional control
process is carried out
3) This is the standby mode entered after warm-up or after completing a print job.
4) System Error check
5) Power save state is entered after timeout
> Wakeup condition

* When a "wakeup" order is received
* When a cover is opened and then closed
* When the level of the paper empty sensor changes.
> Heat lamp is off
5.2.4 Pre-Print
This is the preparation stage before processing a printing job and after receiving a print command from a host.
1) Start LSU
* Run Scanning motor
* Check motor ready
* Turn LD on
2) Start BLDC motor, Eraser/PTL on
* Run main motor
* Check lock signal
* Run developer roll motor
* Check lock signal
3)Turn High Voltage On
* Charger on
* Developer high voltage off
4) Cleaning
* OPC cleaning (Mechanical motion)
* ITB cleaning
5) Jam check
6) Motor Unlock Check
7) Check and Set a High Voltage Condition (T1, T2, Charger)
8) Initialize Printing Parameters
* Paper size, copies, cassette ...
* Image pixels, image times, y-offset, x-offset
* Flags
9) Check Print mode
* Color print mode:
- Except legal & OHP/Legal/OHP
- Simplex/Duplex
* Mono pint mode: Simplex/Duplex/OHP
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System Outline
5.2.5 Print
After sensing the ITB home position the following tasks are performed,
Send Psync signal to controller ???Operates virtual timer for each color(Vdata) - Forms latent
image on OPC drum ??Supplies toner on OPC drum - Transfers image to ITB (T1 )- Pickups a
paper - Transfers image to a paper (T2)
1)Check ITB Home (Treated by Home interrupt): It is designed to detect ITB HOME every 3 seconds.
a) ITB Home sensing
b) If a test mode is set up, a test pattern is printed.
c) A counter value is set up that addresses the timing to turn on page sync.
d) The virtual timer for each color (Y, M, C, and K) is set up
e) If Home is not detected every 3 seconds, an error is reported.
2)Paper path and print

a) Printing paper from cassette, MPT and SCT is picked up
b) Control paper path
* Stop when the leading edge of a piece of paper reaches the feed sensor.
* If the leading edge doesn't reach the feed sensor, it is an error.
* While transferring the last color to the ITB, re-feed the paper.
* Checks if the paper reaches the exit sensor in certain time. If it reaches too soon, or it doesn't
reach, it is an error.
* Checks that the paper passes the exit sensor or not.
c) Jam check
* Check reaching time and passing time for the paper reaching and passing the feed and exit
sensors. If time exceeds a certain time, it is an error.
d) Duplex control
* After passing the exit sensor, the duplex clutch is operated to mechanically change the direction
of the paper flow in order to print the other side.
e) Printing sequence and motion for each color
* Use a virtual timer for printing the colors in sequence. (Yellow, Magenta, Cyan, Black)
> What is a Virtual Timer?

A virtual timer is a mathematical function for creating regular action at fixed time intervals. The stan-
dard setting is for a 5msc timer interrupt.
5.2.6 Post-Print
This is the last stage of the printing process. Its functions are described in the below.
a) Clean transfer rollers

b) Stop all virtual timer
c) It initializes parameter used in printing process.
d) Stop motors.
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Samsung Electronics
Disassembly and Reassembly
6
6. Disassembly and Reassembly
6.1 Cautions When Replacing Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-2)

6.1.1 Cautions when assembling and disassembling . . . . . . . . . . . . . . . . . page(6-2)
6.1.2 Cautions when handling PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-2)
6.2 Parts for Maintenance and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-3)

6.2.1 Replacing cycle of parts for maintenance and repair . . . . . . . . . . . . page(6-3)
6.2.2 Printer Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-4)
6.3 Information Related in Disassembly and Assembly . . . . . . . . . . . . . . page(6-5)

6.3.1 Attentional item when disassembling or assembling . . . . . . . . . . . . page(6-5)
1) Disassemble of LSU unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5)
2) Disassemble of ITB unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5)
3) Custody of OPC unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5)
4) Custody of Toner cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5)
5) Disassemble of DEVE drive ass’y and main drive ass’y . . . . . . page(6-5)
6) Disassemble of terminal parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5)
7) Disassemble of fuser unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-5)
6.3.2 screw Used in the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-6)
6.3.3 Various Cover Open and Consumption Part’ Disassembly . . . . . . . page(6-7)
>> Consumption Parts’ disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-7)
6.3.4 Replacing the Waste Toner Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-10)
>> Disassembling the waste toner tank . . . . . . . . . . . . . . . . . . . . . . . . page(6-10)
6.4 Process of Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-12)

6.4.1 Front cover and Top cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-12)
6.4.2 OP Panel Ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-15)
6.4.3 Rear Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-16)
6.4.4 Duplex Cover Ass’y and Transfer Roller (T2) Roller . . . . . . . . . . . . . page(6-17)
6.4.5 Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-19)
6.4.6 Exit Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-21)
6.4.7 SMPS and Main PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-22)
6.4.8 Fuser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-25)
6.4.9 Main Drive Ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-26)
6.4.10 HVPS (High Voltage Power Supply) and Suction Fan . . . . . . . . . . page(6-28)
6.4.11 DEVE drive ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-30)
6.4.12 DEVE drive PBA and DEVE cover open S/W . . . . . . . . . . . . . . . . . page(6-33)
6.4.13 ITB Cleaning Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-35)
6.4.14 LSU unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-36)
6.4.15 DEVE OEM PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-39)
6.4.16 Waste toner ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-40)
6.4.17 Erase lamp and paper empty sensor . . . . . . . . . . . . . . . . . . . . . . . . . page(6-42)
6.4.18 DEVE cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(6-44)
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Samsung Electronics
6.1 Cautions When Replacing Parts
6.1.1 Cautions when assembling 6.1.2 Cautions when handling

and disassembling PBA
* When replacing parts, please do use Please do always consider the cautions
standardized parts. If one uses non- written in below to prevent a static elec-
standardized parts, an electric shock, tricity generated from damaged PBA.
fire, malfunction, and overloading could
occur due to damage of safety device. >> Cautions when moving and storing
a PBA
* Do not rebuild the unit. If a person 1. Please keep PBA in a conductive case, a
rebuilds the unit or attaches non-stan- bag, or an aluminum foil.
2. Do not store it at where exposes by direct
dardized parts, the machine becomes sunlight.
malfunction and overloaded, an electric
shock and fire could occur, and one >> Cautions when replacing PBA
could lose his or her eyesight. . 1. Please pull off a power plug or a cable before
taking in or out to/from other connector.
* When assembling a unit, do use autho- 2. Do not touch a terminal or a soldered section
when handling insulated parts of PBA.
rized screws. If a person uses unsuit-
able screws, it could cause a malfunc-
>> Cautions when checking PBA
tion, a wrong setup, an electric shock, 1. Before touching PBA, please do touch other
and an injury. grounding items or a frame of PBA for con-
tacting to static electricity in a body.
* Do not disassemble LSU unit. Once it 2. Do not invest PBA with hands or metal
is disassembled, it cannot be repaired objects. Do check PBA with moving parts
such as a solenoid, a motor, or a lamp.
perfectly. There are some screws except screw shown
on top. Do tighten up screws at the right
* Regularly, do check and clean a power place. Do precisely match a screw to a
cord plug and a socket. If dirt piles up toothed washer.
on it, it could occur a fire and a malfunc-
tion.
* Please, regularly do check a power

cord. If one continuously uses without
finding any abnormality, it could cause
an electric shock and a fire.
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Samsung Electronics
6.2 Parts for Maintenance and

6.2.1 Replacing cycle of parts for maintenance and
This periodic table contains the general information for the maintenance.
These parts in the table have shorter life span than a machine such as tire or belt of a car. After certain
time, the parts must be regularly replaced.
The table shows a reliable lifecycle of those parts, which normally functions in A4 paper standard.
When maintaining or repairing a machine, please, regularly check print running counts for replacing parts
that has on the due time.
COMPONENT REPLACEMENT CYCLE REMARK

Toer Cartridge(Black) intial(2,000 page@5% coverage) User replace
intial(7,000 page@5% coverage)
Toer Cartridge(Cyan) intial(1,500 page@5% coverage) User replace
Toer Cartridge(Magenta) intial(1,500 page@5% coverage) User replace
Toer Cartridge(Yellow) intial(1,500 page@5% coverage) User replace
OPC Unit mono : 50,000 page User replace
color : 12,500 page
ITB Unit(T1 Roller) mono : 50,000 page User replace
color : 12,500 page
Waste Toner Tank 3,000 page User replace
Fuser Unit simplex : 10,000 page Engineer
color : 50,000 page
Transfer Roller(T2 Roller) simplex : 10,000 page Engineer
Pickup Roller simplex : 10,000 page Engineer
* Page: Counted value based on printed papers.

* Image: Counted value based on printed monochrome images.
* When printing a color section, it becomes 1 page, 4 images.
The life spans of parts are stored in a memory, so the using amount of parts can be checked anytime if
needed to.
After replacing the parts, the life counting value must be initialized for informing the replacement to the
machine.
* Way to initialize a counting value of part’s life span:

From an OP panel, select items in order to:
Menu-Setup - Maintenance - Check other-Select a desired part - Reset
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Samsung Electronics
6.2.2 Printer Cleaning

A printer must be regularly cleaned if its printing quality has been getting worse or if it has been used in
dusty place.
If cleaning a printer regularly, the printer keeps having a clean printing quality, and printing troubles will not
occur.
* Clean up a printer with a soft fabric that dip in “Recommended cleanser”

“Recommended cleanser” can be purchased from our service center.
* Do not use a surfactant that includes alcohol, solvent, or other strong elements when cleaning a
printer. It could cause discoloration, crack, and so on.
* Do not touch a transfer roller when cleaning inside of a machine. If a transfer roller gets dirty, a
printing quality could be low.
* Please, refer to a user manual for learning cleaning method of other section.
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Samsung Electronics
6.3 Information Related in Disassembly and Assembly.

6.3.1 Attentional item when disassembling or assembling
Never remove, disassemble, or adjust the items mentioned in below and carefully stock the items.
1) Disassemble of LSU unit 5) Disassemble of DEVE drive ass’y
If a LSU unit is disassembled, an image and main drive ass’y
on OPC drum cannot be normally It has been set up in factory with using a
exposed. It causes inferior image. jig and a driving gear, and it is adjusted
By a laser emitted from LSU, human eyes for the best gearing of gear.
can get damage. It is very dangerous to If a motor is disassembled, a gearing
operate or serve a machine being without could be too deeper or too shallow. It
protection cover. could cause a noise and image troubles: a
color could spray on a wrong spot or
2) Disassemble of ITB unit spray unevenly.
If ITB unit is disassembled, an image on
OPC drum cannot be normally transferred 6) Disassemble of terminal parts
(Primary image transfer). It causes inferi- Do not adjust the variable resistors on
or image. PBA. It has been already adjusted from
factory.
3) Custody of OPC unit
If an OPC unit is exposed with direct sun- 7) Disassemble of fuser unit
light for a long time, its trait can get dam- - A fuser melts toner on a paper with its
age, so an exposure on OPC drum cannot high temperature: therefore, you need
be achieved normally. special attention not to get an injury by
Therefore, please, be careful with a direct high temperature.
sunlight and damage on a drum when dis- When removing a fuser from a set that was about
assembling. to stop operation, you need a special precaution.
- Do not touch an AC line (Copperplate) of
4) Custody of Toner cartridge a main frame even after disassembling a fuser.
Toner cartridge has a fine powder type of
toner, which is injurious to one’s health.
Be careful not to leak a toner out of toner
cartridge.
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Samsung Electronics
6.3.2 screw Used in the Printer

The screws in the table are used in this printer. After disassembling, do use suitable
screw when reassembling it.
NO DESCRIPTION SEC CODE SPEC NO DESCRIPTION SEC CODE SPEC

S1 SCREW-MACHINE 6001-000485 2.6*4, YELLOW S11 SCREW-TAPTITE 6003-000269 3*6, YELLOW
S2 SCREW-TAPPING 6002-000172 4*15, YELLOW

S12 SCREW-TAPTITE 6003-001001 3*8, BLACK
S13 SCREW-MACHINE 6001-000568 3*8, WHITE
S14 SCREW-TAPTITE 6003-001256 4*10 WHITE
S4 SCREW-TAPTITE 6002-000308 2.6*6, YELLOW
S15 SCREW-TAPTITE 6003-000261 3*6, YELLOW

S16 SCREW-MACHINE 6003-001068 2*16, BLACK


S18 SCREW-SPICIAL 6009-001396 3*10, BLACK

S19 SCREW-TAPTITE 6003-000008 4*6, WHITE
S10 SCREW-ASS’Y MACH 6006-000127 3*6, YELLOW
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6.3.3 Covers Open and Consumption Part’ Disassembly

These are the ways to open various covers (front cover, DEVE cover, exit cover, and duplex cover) and the
ways to disassemble consumption parts (toner cartridge, ITB unit, and OPC drum).
>> Consumption Parts’ disassembly
1) Pull a handle to open a DEVE cover
Pull
Caution: For opening the exit cover, completely open the DEVE cover .
2) Remove a toner cartridge (K, Y, M, and C)
Black Toner Cartridge

Yellow Toner Cartridge
Margenta Toner Cartridge
Cyan Toner Cartridge
Caution: * Be careful not to give a damage on the rollers.

* Do keep the toner cartridge on a flat floor.
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3) Open the exit cover by pressing the cover open button.
Push
Exit Cover
Caution: For opening the exit over, completely open the DEVE cover and the printer until those become
the right angle.
4) Remove the ITB unit by releasing lock levers of the ITB unit on both sides.
Lever Lever
ITB Unit
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5) Remove the OPC drum by pulling the handle of the OPC drum.
OPC Drum
Caution: The surface of the OPC drum could be damaged if the OPC drum is exposed by direct sunlight
over 5 minutes. Do cover the surface of the OPC drum with A4 paper after disassembling it.
Paper
OPC Drum
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6.3.4 Replacing the Waste Toner Tank
>> Disassembling the waste toner tank

1) Push the both sides of the front cover.
PUSH
2) Pull the hook of the waste toner tank to the top.
PULL
Caution: Be careful not to leak out the waste toner.
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Samsung Electronics
3) Close the waste toner tank with the waste toner cover.
Toner Cap
4) Attach a new waste toner tank.
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Samsung Electronics
6.4 Process of Disassembly

6.4.1 Front cover and Top cover
1) Pull the cassette.
Cassette
2) Open all covers in order to the Duplex cover - DEVE cover - Exit cover (Refer to 6.3.3)
Exit Cover
Deve Cover
Duplex Cover
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3) Release 2 screws (3*10white), and then, remove the top cover.
Screw
Top Cover
Screw
4) Push the both sides of the front cover to open it, and then, remove the waste toner tank. (Refer to 6.3.4)
PUSH
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Samsung Electronics
5) Release 9 screws (3*10 white) located in the front side.

* Front: 7 screws (3*10 white) * Top: 2 screws (3*10 white)
Screw Screw
Screw Screw Screw Screw
Screw
Screw
Screw
6) Release 2 hooks on the right and the left side with a screwdriver (-), and then, remove the front cover.
Hook Hook
7) Take out one harness connected to the frame.
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Samsung Electronics
6.4.2 OP Panel Ass’y

>> Before disassembling it: Remove a front cover. (Refer to 6.3.3)
1) Release 3 screws (3*8 black), and then, take out the OP panel ass'y.
2) Release 4 screws (3*8 black) from the Panel PBA, and remove the panel PBA.
3) Release 2 screws (3*6 Yellow) from the LCD, and then, take out the LCD.
C
A Screw Screw Screw
Screw Screw
Screw A
B B
Screw A
Screw
Screw
A : OP Panel Screw, 3 * 8 Black

B : Panel PBA Screw, 3 * 8 Black
C : LCD Screw, 3 * 6 Yellow
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Samsung Electronics
6.4.3 Rear Cover

>> Before disassembling it:
*Open all covers, the duplex cover, the DEVE cover, and the exit cover.
(Refer to 6.3.3)Remove the top cover. (Refer to 6.4.1)
1) Remove 10 screws.
A: Top 2 EA (3 * 10 White)
B: Side 3 EA (3 * 10 White)
C: Bottom 3 EA (4 * 10 White)
D: Rear 2 EA (3 * 10 White)
Screw
Screw
Screw
D Screw
B
Screw
Screw
Screw Screw
Screw Screw
2) Pull 4 hooks on the right and left, and then, remove the rear cover.
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Samsung Electronics
6.4.4 Duplex Cover Ass’y and Transfer Roller (T2) Roller

* Open all covers, the duplex cover, the DEVE cover, and the exit cover. (Refer to 6.3.3)
* Remove the front cover and top cover. (Refer to 6.4.1)
* Remove the rear cover. (Refer to 6.4.3)
1) Release 2 screws (3*10 white) on the right and left side of the duplex link.
Screw
2) Remove the duplex cover ass'y by pulling it toward to the arrow direction.
* A: Lift up the left side section.
* B: Remove the duplex cover ass'y by pulling the right side section to the inside direction.
A B
A B
Duplex Ass’y
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3) Release 4 hooks on the right and left side with the screwdriver(-), and then, remove the duplex ass'y.
Hook
Hook
Duplex Ass’y
Hook
Hook
4) Remove the transfer roller by turning the both side of the bushing.
Duplex Ass’y
Transfer Roller
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6.4.5 Fuser
1) Open the DEVE cover
Pull
Caution: For opening the Exit, completely open the DEVE cover and the printer until those become the
right angle.
2) Open the exit cover.
Push
Exit Cover
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3) Release 5 screws (3*10 white), and then, remove the harness cover.
Screw
Screw
Cap Harness
Screw
Screw
Screw
4) Remove one harness.
Harness
5) Remove the fuser by grabbing both side of the fuse, and then, pulling the fuser to the top.
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6.4.6 Exit Cover

* Disassemble the front cover (Refer to 6.4.1)
* Disassemble the rear cover (Refer to 6.4.3)
* Disassemble the duplex cover (Refer to 6.4.4.)
1) Remove the E-ring and the hinge pin by using the screwdriver(-).
Exit Cover
E-Ring
Hinge Pin
2) Remove the exit cover.
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6.4.7 SMPS and Main PBA

>> Before disassembling it
*Remove the rear cover (Refer to 6.4.3)
1) Release 6 screws (3*6 machine) from the main PBA bracket.
Screw
Screw
Screw
Screw
Main PBA Bracket
Screw
Screw
2) Release 2 screws (3*10 machine) connected to the main PBA parallel port, and then, remove the main
PBA bracket.
Screw
Screw
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3) Release 5 screws from the SMPS.

Release one screw(3*10 white) from the harness guide2.
A: Right side 3EA (3 * 6 White)

B: Left side 1EA (3 * 10 White)
C: Bottom 3EA (4 * 10 White)
Harness Guide2
Screw
A
A
Screw
Screw
B Screw SMPS
Screw
C Screw
4) Remove 4 harnesses from the SMPS.
CON4
CON3 CON4
CON3
CON1 CON2
CON1 Fuse CON2
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Samsung Electronics
5) Remove all harness connected to a main PBA.
6) Release 5 screws (3*6 machine) from a main PBA, and then, remove a main PBA.
Screw Screw
Main PBA
Screw
Screw
Screw
CN10 ITB
CN17 WASTE TONER
EXIT CN19 CN7 HVPS
DUPLEX CN24 CN15 TH3 CN11 PTL CN4 PANEL
T2 HOME CN26
BLDC1 CN27
FSR_ROLL CN28
FUSER_FAN CN29
CN9 NIC
USB
SMPS CN30
MP EMPT CN30 CN1
MP SOL CN32 Parallel Port
FEED CN33
PICK_UP CN25 CN5 DRIVER

CN16 SCF CN12 LSU
CLT_FEED CN23 CN14 LSU SW
CN6 OPC KEY
EMPT CN21 CN8 EASER
CN35 LSU_FAN
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6.4.8 Fuser Fan

* Disassemble the front cover (Refer to 6.4.1)
* Disassemble the exit cover (Refer to 6.4.6.)
* Disassemble the main PBA bracket. (Refer to 6.4.7)
1) Release 3 screws (3*10 white), remove one harness from the main PBA, and then, take out the fuser fan.
Screw
Screw
Fuser Fan
Screw
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Samsung Electronics
6.4.9 Main Drive Ass’y

>>Before disassembling it:
* Disassemble the fuser (Refer to 6.4.5)
* Disassemble the SMPS (Refer to 6.4.7)
* Disassemble the fuser fan (Refer to 6.4.8)
1) Remove all harnesses from the harness guider.
2) Release one screw form the bracket-cover SMPS, and then, take it out.
3) Remove the washer by using the tweezers, and then, remove the T2 cam. (T2 cam can be found inside
of the printer when open the duplex cover.)
Cam-Drive
Washer-Plan
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4) Remove the washer by using the tweezers, and then, remove the OPC gear and pin. (OPC gear can be
found inside of the printer after removing the OPC drum unit.)
Pin-Drive
Gear-Drive
Washer-Plan
5) Release one screw (3*10 white) from the ZENER PBA.

Remove the motor harness.
Release 5 screws (3*10 white) and then, take out the main drive ass'y.
Screw
Zener PBA
Screw
Screw Harness
Screw
Screw Screw
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6.4.10 HVPS (High Voltage Power Supply)

* Disassemble the front cover & top cover (Refer to 6.4.1)
* Disassemble the main PBA bracket (Refer to 6.4.7.)
1) Remove one harness from the main PBA
CN7 HVPS
SUPPLY T1 T2
CHARGER
USB
CN1(to Panel)
Parallel Port
CN2(to Deve)
<Main PBA> <HVPS>
2) Remove one harness and 4 high-voltage harnesses from the HVPS.
Harness
Harness
Harness
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3) Remove 5 screws (3*6 machine), and then, remove the HVPS.
Screw Screw
Screw
Screw Screw
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Samsung Electronics
6.4.11 DEVE drive ass’y

* Disassemble the main PBA (Refer to 6.4.7)
1) Remove the harness guider 1 by releasing 2 screws (3*10 white).

Remove the harness guider 2 by releasing 2 screws (3*10 white).
Harness Guider 2
Screw Screw
Harness Guider 1
Screw
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2) Remove the main PBA shield, and the harness guider 3 by releasing 5 screws.
Harness Guider 3
Screw
3x 10 White
Screw
Screw
3 x 6 Yellow
Main PBA Shield

Screw
Screw
4x 10 White
3) Remove the ground harness and the guide harness bracket by releasing 3 screws (3*6 machine: 2
pieces, 4*10 white: 1 piece).
B
Screw
Screw
Guide Harness Bracket
Screw
4 x 10 White
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4) Separate the harness from the DEVE motor.
Motor Harness
5) Release 5 screws (3*10 white) from the DEVE drive ass'y.

Remove 4 harnesses connected to the DEVE drive PBA, and then, remove the DEVE drive ass'y.
Screw
SUPPLY
Screw Screw
Screw
Screw
Harness
CLT_4TH CN5
CLT_3RD CN9
CLT-2ND CN4 CN8 CLT-1ST
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6.4.12 DEVE drive PBA and DEVE cover open S/W

* Disassemble the main PBA bracket (Refer to 6.4.7.2)
1) Release 1 screw (3*10 white), and then, take out the DEVE cover open S/W.
Screw
Deve Cover Open S/W
2) Remove all harnesses, 6 screws (3*10 white), and then, the DEVE drive PBA.
SUPPLY
Screw
Screw
Screw
BLCD_DEV CN1
SOL_T1_CLN CN10 CN7 SOL-3RD

Screw
CN2 SOL-2ND
SOL_1ST CN6
SOL_4TH CN3
CLT_4TH CN5
CLT_3RD CN9
CN1
Screw Screw
CLT-2ND CN4 CN8 CLT-1ST
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Samsung Electronics
3) Remove 4 high-voltage terminals.
Terminal
Terminal
Terminal
Terminal
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Samsung Electronics
6.4.13 ITB Cleaning Solenoid

* Disassemble the main PBA bracket (Refer to 6.4.7)
* Disassemble the DEVE drive motor. (Refer to 6.4.7)
1) Release 4 screws (3*6 yellow), and the DEVE drive motor.
Screw
Screw
Screw
Screw
2) Unplug one harness from the DEVE drive PBA, and then, remove the ITB cleaning solenoid.
ITB Solenoid
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Samsung Electronics
6.4.14 LSU unit

* Disassemble the consumption parts (Toner cartridge, ITB unit, and OPC drum) (Refer to 6.3.3)
* Disassemble the waste toner tank. (Refer to 6.3.4)
1) Pull the LSU cleaner and take it out.
LSU Cleaner
2) Release 2 screws, and then, separate the LSU cover toward to the EDVE cover.
Screw Screw
(4 x 10) (4 x 15)
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Samsung Electronics
3) Release 4 screws (4*10 white). (Use a short length (+) screwdriver.)
Screw Screw
Screw Screw
4) Release one screw (3*8 yellow). (Use a short length (+) screwdriver.)
LSU Ground
Screw
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Samsung Electronics
5) Separate 2 harnesses, and remove the LSU unit.
Harness
Harness
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6.4.15 DEVE OEM PBA

* Disassemble the front cover and the top cover. (Refer to 6.4.1)
1) Separate one harness from the HVPS and one harness from the DEVE OEM PBA.
Remove 6 screws (3*8 black), and then, take out a DEVE OEM PBA.
Harness
Screw Screw
Screw Deve OEM PBA
Screw
Screw
Screw
2) Remove 12 terminals.
Termianl
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6.4.16 Waste toner ass’y

* Disassemble a front cover and a top cover. (Refer to 6.4.1)
1) Release one screw (3*6 yellow) and separate the ground harness.
Screw
2) Release 6 screws (3*10 white).

* Upper part: 4 pieces * Lower part: 2 pieces
Screw
Screw
Screw
Screw
Screw
Screw
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Samsung Electronics
3) Remove the waste toner ass'y by taking down the OPC lifter and pulling it toward to the body direction.
OPC Lifter
4) Release one screw (3*10 white), and then, remove the sensor cover.
Screw
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6.4.17 Erase lamp and paper empty sensor

* Disassemble all consumption parts (Toner cartridge, ITB unit, and OPC drum) (Refer to 6.3.3)
* Disassemble the front cover and top cover (Refer to 6.4.1)
* Disassemble the waster toner ass’y. (Refer to 6.4.16)
1) Release 2 screws (4*15 yellow), and remove the LSU cover: A

Release one screw (4*10 white), and then, remove the lamp cover: B
Screw Screw Screw
2) Remove one harness, and then, remove the erase lamp.
Erase Lamp
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Samsung Electronics
3) Remove the paper empty sensor under the erase lamp.
Paper Empty Sensor
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Samsung Electronics
6.4.18 DEVE cover

* Disassemble the LSU cover. (Refer to 6.4.14)
1) Remove 2 screws (3*10 white), and then, DEVE open link guide.
Screw
Deve Open Link Guide

Screw
Deve Open Link
2) Separate the DEVE cover by pulling it toward to the arrow direction
Deve Cover
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Samsung Electronics
6.4.19 MPT(Multi Purpose Tray)

* Disassemble the rear cover. (Refer to 6.4.3)
* Disassemble the duplex cover. (Refer to 6.4.4)
* Disassemble the SMPS & main PBA. (Refer to 6.4.7)
1) Release 2 screws (3*10 white), and then, Release the SMPS fit. Pull the MP Ass'y upward and remove
Screw Screw
Screw Screw
it.
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Samsung Electronics
Alignment & Adjustments
7
7. Alignment and Adjustments
This chapter describes some of the main service procedures including:

Using the EDC mode; Clearing paper jam and test patterns.
Much of this chapter is also included in the user's guide.
7.1. Paper path and Paper jam
7.1.1 Paper path
Exit Sensor
EXIT
EXITAss’y
Unit Duplex Path
Fuser Unit
ITB
DEV. - Black
Transfer Roller
DEV. - Yellow DUPLEX
OPC Feed Sensor
DEV. - Magenta
DEV. - Cyan
MPF Path
Pick-up Feeder
MPT PathP
F
T
Roller M
FCT CASSETTE
Paper Empty Sensor(MPT)

FCT Path
SCT SCF
SCF Path
SCT Path
Paper Empty Sensor(SCT)
Paper Empty Sensor(FCT)

Paper Pick-Up Roller
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Samsung Electronics
7.1.2 Jams
1) Jam0 (Jam in feed area)
* After a page was picked up, it was not fed.

* Paper does not reach the feed sensor in a
certain time.
* Feed sensor is faulty and does not detect
paper.
- FCF pickup error: When a paper is not Feed Sensor
picked up in the 1st cassette.
- SCF pickup error: When a paper is not
picked up in the 2nd cassette.
Pick-up
Roller
Paper Empty Sensor

2) Jam1 (Jam inside printer)
* After the leading edge of the paper has

reached the feed sensor, the feed sensor
Exit Sensor
doesn't turn off (fails to detect the trailing edge
of the paper) in a certain time
passed the feed sensor, it doesn't reach the
exit sensor in a certain time.
* Exit senor is faulty and does not detect paper. Feed Sensor
3) Jam2 (Jam in exit area)

passed, the trailing edge of the paper has not Exit Sensor
passed the exit sensor within a certain time
* The paper drive motor has been driving for
longer than the time needed for the longest
paper size and the exit sensor is not off.
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4) Jam duplex (Jam in duplex area)
* Jam duplex occurs when printing the reverse

side of the paper during duplex printing. After Exit Sensor
printing the front side the duplex solenoid must
operate in order to feed the paper back into the
duplex path. If the solenoid fails paper may be
stuck in the exit roller and is not fully elected
into the exit tray
Feed Sensor
* If the duplex solenoid operates paper is fed
back into the machine. If the leading edge of
the paper does not reach the feed sensor in a
certain time then Jam Duplex occurs.
- This can be cause by paper being jammed
in the duplex path area.
5) Jam MPF
* Paper could not be picked up from the MPF tray.

* After pickup, a paper has been fed, but it
doesn't reach the feed sensor in a certain time.
* Feed sensor is faulty and does not detect paper.
Feed Sensor
CASSETTE
SCF
SCF Path
MP Empty Sensor
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Samsung Electronics
7.2 Jam Remove

When a jam occurs while printing a jam message is displayed on the control panel.
* Jam0 In Tray 1:
Paper jam in the main cassette.
* Jam0 In MP Tray:
Paper jam in the MP tray
* Jam0 Tray2:
Paper jam in the SCT (Second cassette tray)
* Jam Inside Printer:
Jam 1, Paper is jammed inside the printer.
* Jam In Exit Area:
Jam2, Paper is jammed in the exit area when ejecting paper.
* Jam In Duplex Path:
While duplex printing, paper is jammed in the duplex unit.
CAUTION: When removing jammed paper, always pull it firmly and evenly without any sudden jerks. If
at all possible, remove the paper as a single sheet. If the paper tears ensures ALL paper
fragments are removed. Any fragments left inside the machine will cause it to jam again.
7.2.1 Factors that cause paper to jam
- Too much paper is loaded in the cassette.

- Paper in not loaded correctly in the cassette.
- Duplex cover opened while printing.
- Cassette removed while printing.
- Incorrect thickness of paper used.
- Incorrect size of paper used.
- Cassette paper guides not correctly set (loose or too tight).
- Foreign object or other contamination of internal paper path and paper guide ribs.
- Badly damaged or folded leading or trailing edges of the paper.
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7.2.2 Tips for Avoiding Paper Jams
By selecting the correct paper types, most paper jams can be avoided. If a paper jam occurs, follow the
steps outlined below:
• Ensure that the adjustable guides are positioned correctly.

• Do not overload the tray. Ensure that the paper is below the paper capacity mark on the right
inside the tray.
7.2.3 Jam 0 In Tray 1
If paper is jammed in the paper feed area,'Jam0 In Tray1 ' appears on the display.
1. Using the handle open the right cove. 4. Pull the tray open. After you pull it all the way
out lift up the front part of the tray slightly to
release the tray from the machine.
2. Carefully remove the misfed paper in the

direction as shown.
5. Remove the jammed paper by gently pulling it

straight out.
3. Close the right cover .The printer resumes printing.

6. To replace the tray lower the rear edge, align it
If there is any resistance, and the paper to the slot and slide it into the printer.
does not move immediately when you pull,
stop pulling and go to step 4. 7. Close the right cove .The printer resumes printing.
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Samsung Electronics
7.2.4 Jam 0 in MP Tray 1
'Jam0 In MP Tray' appears on the display when you are printing using the Multi-purpose Tray and the print-
er detects either there is no paper or the paper is improperly loaded.
1. If the paper is not feeding properly pull the 2. To resume printing, open and close the right
paper out of the machine.. cover.
7.2.5 Jam Inside Printer : Jam1
‘If paper is jammed inside the printer 'Jam Inside Printer' appears on the display.
1. Using the handle open the right cover. 2. Remove the jammed paper in the direction
shown. To avoid the paper tearing pull it out
gently and slowly.
NOTE : If the paper tears make sure that

all of the paper fragments are
removed from the printer..
3.Close the right cover. The printer resumes

printing.
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Samsung Electronics
7.2.6 Jam In Exit Area : Jam2
If paper is jammed in the paper exit area 'Jam In Exit Area ' appears on the display.
1. If a long portion of the paper is visible pull it 4. Carefully take the jammed paper out of the
straight out. If not continue to step 2. printer.
Fuser
2. Using the handle open the left cover completely.
CAUTION : Do not touch the fuser it is hot and

could cause burns! The fuser's
operating temperature is 180 °C (356
°F). Take care when removing paper
from the machine.
5. Close the top cover and the left cover firmly
CAUTION : If the left cover is not completely

open the top cover release button
will not press.
3. Press the top cover release button to unlatch

the top cover and open it all the way.
CAUTION : Do not try to close the top cover with

the left cover closed. This may cause
damage to the machine.
6. Open and close the right cover to resume printing.
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Samsung Electronics
7.2.7 Jam In Duplex Path : Jam Duplex
If paper is jammed in the duplex area 'Jam In Duplex Path' appears on the display.
1. Using the handle open the right cover. 3. If you cannot find the jammed paper or there is
any resistance removing the paper go to step 4.
4. Using the handle open the left cover completely.
2. Locate the jammed paper and then pull it out

gently and slowly to avoid the paper tearing.
Close the right cove .The printer resumes printing.
CAUTION : If the left cover is not completely

open the top cover release button
will not press.
5. Press the top cover release button to unlatch

the top cover and open it all the way.
or
Note : If the paper tears make sure that all of the

paper fragments are removed from the
printer.
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Samsung Electronics
6. Locate the jammed paper and then carefully 7. Close the top cover and the left cover firmly
take it out of the printer.
Fuser
CAUTION : Do not touch the fuser it is hot and

could cause burns! The fuser's
operating temperature is 180 °C
(356 °F). Take care when removing
paper from the machine.
CAUTION : Do not try to close the top cover
with the left cover closed. This may
cause damage to the machine.
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Samsung Electronics
7.2.8 Jam In the Optional Second Tray
1. Using the handle open the right cover. 4. If you cannot find the jammed paper in the
machine open the Tray2 outer jam cover.
2. Remove the jammed paper in the direction

shown. To avoid the paper tearing pull it out 5. Open the inner cover of Tray 2.
gently and slowly.
6. Pull the jammed paper out in the direction

shown. To avoid the paper tearing pull it out
3. Close the right cover. The printer resumes gently and slowly. If there is any resistance, and
printing. paper does not move immediately when you
pull, stop pulling and continue to step 8.
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Samsung Electronics
7. Close the two jam covers. Go to step 11. 9. If you see the jammed paper remove the paper
from the machine by gently pulling it straight out.
8.Pull the optional tray, Tray 2, out of the printer.
10. Slide the tray back into the printer and close
the two jam covers.
11. Open and close the right cover. The printer

resumes printing.
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Chapter 8. Troubleshooting
8
8. Chapter 8. Troubleshooting
8.1 Procedure of Checking the Symptoms
To repair the printer, you have to get information of problem from customer and check the printer and then follow the
procedure of repairing.
Power On
Check and treat

"8.1.1 Basic Check List"
OP Panel - No Power
ON? - LCD Module
- Main PBA
Ready Indicate
or Check and treat
Power Save "Error Message"
"8.5 Error Message"
Print
The quality Check and treat

of printing is "8.2 Solution of Image Problem"
normal?
END
Service Manual
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Samsung Electronics
8.1.1 Basic Check List
1) Check the Power

• Check the condition of Warming up when turns on the printer.
--> If it is not normal, it is caused by Unit of Power or SMPS.
• Check if the Motor or Components are initialized or not.

--> If it is not normal, there's no sound and caused by Unit of Power or SMPS.
2) Check if the Lamp on the LCD Panel is on or not.

• It must be normal condition of characters. (i.e. : READY, OFFLINE, POWERSAVE etc.)
--> Check the Unit of Power or SMPS if the LCD Lamp is off, and check the main PBA if the characters are broken.
3) Check the ERROE message of the LCD Panel.

• Treat with propriety according to the ERROR message. (Reference Page : Solution of Error Code)
4) Check the Paper Path or if there is Paper Jam or not.

--> Remove the caught paper from the Paper Path
--> Inspect the Unit and re-assemble if Paper Jam occurs at the specific Paper Path continuously. (Especially, check
the Fuser if there are caught paper or not.)
5) Check if the Information Page (Configuration) is printed out normally.

• If it is normal, test printer at the connected computer (Control Panel).
--> if it is not printed successfully, check the cable connected with computer or interface equipment.
6) Check if the Printing Quality is good or not.

• Compare with the original document.
--> Treat with propriety if there are some Printing Quality Problem.
(Reference Page : Solution of Printing Quality Problem)
7) Check the consumption goods.

• Check the Consumption Goods Counter on the Information Page (Configuration) and replace, if necessary.
(Reference Page : Configuration)
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8.1.2 Initial Inspection
1. Check Power part
1. The engine does not work no matter how long wait.

- Check if the Power is connected or not.
2. Does the Fan work ? (When it is connected at the Power.)
- Check the Fuse in the SMPS.
- Check the Engine Error and then refer to the Troubleshooting Policy.
2. Check the Installation Environment.
1. Is there inclination or vibration ?

- Check horizontal level and remove vibration.
2. Are temperature and humidity propriety in accordance with Installation Environment ?
- Apart printer from the kind of air conditioning equipment or heater and not let the cold air from air conditioner reach
directly.
3. Does direct ray of right reached ?
- if it is unavoidable, obstruct a direct ay of right with a curtain or other thing.
4. Are there lot of dust or alien substance in the air ?
- Move the printer to clean area.
5. Is there corrosiveness gas like ammonia in the air ?
- Move printer to not be exposed area.
3. Check paper type.
1. Use suitable type and size paper ?

- Use suitable type and size paper in accordance with user guide.
4. Check the condition of management for printer.
1. Does printer be managed with propriety ?

- Clean the Paper Transport Passages.
- Clean or replace, if surface of roller is dirty.
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8.1.3 No Power
1) Does Power S/W turn on ?

2) Does Power Cord be connected to the printer correctly ?
3) Does Power cord be connected to the plug correctly ?
4) Is power voltage from plug suitable ?
5) Does the connector in the SMPS be connected correctly ?
6) Aren't the fuse in the SMPS burnt out ?
8.1.4 Check the length of life of components
The length of life of consumption components displayed by operating time or quantity of output.
It can not output if the length of life one of the component is end.
Note : Printing does not stopped if Toner is empty.
Printer calculate the working time and quantity of output of each components and save this information.
1. Working time of each of components (OPC Drum, Toner Cartridge, Image Transfer Belt, Fuser Unit) is measured
every 30 seconds when the Transport Motor and Fusing Contact Motor work.
2. Every 30 seconds to measure the quantity of image pixel "1" is added. The amount of waste toner is calculated by
using output data of image pixel.
3. It will be start from "0" again, if it is replaced.
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8.2 Solution of Image Problem
- No Image
Cause Sequence of Treatment
If printed blank. Check if the operating driver was installed cor-

rectly or not.
If the condition of contact for Toner Cartridge Re-install the Toner Cartridge.
is not good. Re-install the ITB Unit.
If the condition of contact for connector of Check if the connector of ITB Unit is contami-
ITB Unit is not good. nated or not,
If the condition of contact for LSU Unit is not Check if the connector in the LSU Unit is con-
good. nected correctly or not, when not fixed replace
the LSU Unit.
If the Image Data Iis broken. Replace the HVPS.
- Completely Black Image

If the condition of contact for bias of OPC - It caused by contamination of OPC Drum or
Drum is bad. defective OPC Drum.
- Replace the OPC Drum.
If the Charge Voltage of OPC Drum is unsta- Replace the HVPS Board.
ble.
- White Spots / Black Spots

If the inside of Toner Cartridge is contaminated. Replace the Toner Cartridge.
If the inside of OPC Drum is contaminated. Replace the OPC Drum.
If the ITB Unit Belt is contaminated. Clean or replace the ITB Unit Belt.
It the Fuser Unit is contaminated. Clean or replace the Fuser Unit.
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- Toner Smudges on the back side.

If the Paper Path is contaminated. Open cover widely and clean the Paper Path.
If the ITB Unit Belt is contaminated. Clean or replace the ITB Unit.
It the Pressure Roller of Fuser Unit is Clean or replace the Fuser Unit.
contaminated.
- Foggy back ground

If the Developer Part is contaminated. Replace the Toner Cartridge.
If Printing Density is dark. Replace the OPC Drum.
- Low image density

If the Image of OPC Drum is fallen off. Replace the Toner Cartridge.
If the condition of transmission for ITB Unit Re-install or replace the ITB Unit.
Image is bad
If it does not bias to the ITB Unit. Replace the HVPS.
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- Black / White Lines and Bands

If the Developer Part is contaminated. Replace the Toner Cartridge.

Replace the OPC Drum.
If the ITB Unit is damaged. Replace the ITB Unit.
If the Fuser Unit is damaged. Replace the Fuser Unit.
If the Lens Cover of LSU is contaminated. Clean the Lens Cover of LSU.
- Offset Image
Afterimage Replace the OPC Drum.
If there is afterimage at the ITB Unit. Re-install or replace the ITB Unit.
If the Toner Cartridge is installed incorrectly. Re-set the Toner Cartridge.
- Deterioration of Printing Quality for Color.

If there is problem of the first transmission to the Re-install or replace the ITB Unit.
ITB Unit .
If there is problem on the Paper Path. Open the covers and check the Paper Path.
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Samsung Electronics
- Deterioration of Printing Quality for Specific Color.

If the Sensor of Toner Cartridge is bad Check or replace the Toner Cartridge.
If the Paper Path is bad. Re-check the Develop Processor.
If the Paper Image Transmission has Re-install the ITB Unit.

problem.
- Uneven Color Density

If the condition of contact for Transfer Roller Re-install or replace the ITB Unit.
or ITB Unit is bad.
If image appear just one time after installing Make test printing a couple of times.
Toner Catrage at first time.
- Whited out area

If use moisture or wet paper. Use dried paper and inspect the condition of
keeping paper.
If some parts of image are blank and rumples 1) Rumples : Replace the Guide Input.
are hard. 2) Replace the Fuser Unit.
3) Replace the contaminated parts of OPC
Drum, Toner Cartridge, ITB Unit..
If it appears under Duplex Printing only. Replace the Duplex Unit.
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Samsung Electronics
- Lateral Lines
Check a cycle and replace the correspond Refer to Table of circle of Roller.
unit. - T1(ITB Unit) : The same position of each page.
- T2(Transfer Roller) : 75,36,
- OPC Drum : The same position of each page.
- Developer : 29,28
If it appears within 1 ~ 2 mm. Replace the LSU Unit.
If circle is irregular. Replace the OPC Drum.
- Evenly Defect of Image

Check a cycle and replace the correspond Refer to Table of circle of Roller.
unit. - T1(ITB Unit) : The same position of each page.
- T2(Transfer Roller) : 75,36,
- OPC Drum : The same position of each page.
- Developer : 29,28
If it appears within 1 ~ 2 mm. Replace the LSU Unit.
If circle is irregular. Replace the OPC Drum.
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Samsung Electronics
8.3 Paper Feeding Problems and Troubleshooting
8.3.1 Trouble of Top Margin.
Symptoms : Printing begins at wrong position on the paper.
Check and Cause Solution

Wrong sense time caused by defective feed sensor actua- Replace the defective actuator
tor.
8.3.2 JAM 0
Symptoms 1. Paper has not exited from the cassette.

2. "Jam-0" occurs even though the paper feeds into the printer.
1. Check the Feed Solenoid or Pick- 1. Replace the Solenoid.

Up under EDS Mode.
Feed Sensor
2. Check if the Pad is loose due to 2. Replace the Side - Pad (inside the
Pick-up
Roller
bad sealing of the Side-Pad. Cassette).
3. Check if the surface of the Pick-Up 3. Clean the surface of the Pick-Up
Paper Empty Sensor
Roller is clean or not. Roller with IPA or water.
4. Check the Feed Sensor under 4. Replace the main PBA or Sensor.
EDC Mode when "JAM-0" occurs
even though the paper feeds into
the printer.
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Samsung Electronics
8.3.3 JAM1(JAM inside pinter)
Symptoms Paper is jammed in front of the Fuser or under the T2 Roller.

Exit Sensor
1. If the paper is jammed in front of or 1. Replace the SMPS.

inside the Fuser
2. If the paper is caught in the Exit 2. - Replace the Main PBA.

Feed Sensor Roller and the Fuser, check the - Re-assemble the Actuator Feed
problem of feedback for Feed and Spring - Actuator or clean the
Actuator if paper pass through the Hinge with cotton.
Feed Actuator.
8.3.4 JAM 2 (Jam in Exit Area)
1. Paper is jammed inside the Fuser.

Symptoms 2. Paper is caught in the Actuator-Exit.
3. Paper is caught in the Exit Roller and Fuser, and pass through the Actuator - Feed.

Exit Sensor
1. Exit Sensor is defective if Jam 2 1. Check if the Exit Sensor Actuator is

occurs after the paper is complete- broken or transformed.
ly fed out of the printer. Sometimes • Check if the Actuator Exit is
it does not return or return lately. deformed (Check if the lever parts
is deformed in shape).
• Check if whether Burrs occurs in
the assembly part of the Actuator
Exit or not and if the Actuator
work correctly.
• Check if the an alien or wire is
caught when Actuator Exit work.
2. the paper is rolled into the Fuser. 2. Replace the Fuser.

• the Accordion Rumples occur-
continuous.
• Temperature rise too much
caused by unusual condition.
• If the Heat Roller or Pressure
Roller is contaminated hard
because of Toner.
3. If there are an Accordion rumples 3. • Replace the Guide-Output.

inside the Fuser. • Check the Assemble Condition
and Operation of Exit Unit, and
4. If the Exit Sensor is defected. replace if necessary.
• Jam In Exit Area occurs under
Set is stopped. 4. Replace the Exit Sensor assem-
bled into the Main Frame.
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Samsung Electronics
8.3.5 JAM Duplex
Symptoms Indicated "Jam in Duplex Area" on the LCD indicator.

Exit Sensor
1. If the duplex printing paper can not 1. Replace the Main PBA or SMPS.
make the Feed Sensor operate.
2. If the paper does not feed to the 2. Replace the Duplex Unit.
Feed Sensor Feed Sensor because of jamming
in the Duplex Path.
8.3.7 Multi-Feeding
Symptoms If the paper is multi-feed.
1. If the Solenoied does not work correctly, check the 1. Replace the Solenoird and Main PBA.
On/Off operation of Solenoied under EDC Mode.
2. If the Pad-Friction is contaminated with an alien. 2. Clean the Pad-Friction with wet cotton by water or IPA.
3. If the paper is bended 3. Use the normal paper.
4. If the Paper Guide does not be adjusted or loaded on 4. Adjust the Paper Guide and load paper under the
the Finger for separating paper. Finger.
5. Influence of Static Electricity. 5. Use paper after removing Static Electricity.
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Samsung Electronics
8.3.8 Paper rolling in the Fuser.
Symptoms Paper is rolled in the Fuser.
1. If the Heat Roller is contaminated. (Background, Hot 1. Replace the Fuser.

off set)
2. It Accordion Rumples occur between the Fuser and 2. Check if there are damage or contamination on the
the Exit Unit continuous. Paper Guide Rib of Exit Unit, and check the condition
of operation for Exit Roller.
3. If the Bearing - Fuser or Gear - Fuser is transformed 3. Check the SMPS and Main PBA if the Bearing Gear
caused by momentary rising temperature. is melted.
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Samsung Electronics
8.4 Symptoms of Bad Operation and Troubleshooting.
8.4.1 Fuser Error
Symptoms Indicated Open Fuser / Over Heat / Low Heat on the LCD Panel.
1. Check if the Thermostat, AC Wire and Heat Lamp 1. Replace the Fuser if the Thermostat is opened.
are opened or not.
2. Check if the Thermostat is opened or not. 2. Replace the Thermostat if the Thermistor Sensor is
broken.
3. Test Heat Lamp. 3. Check if the Over Heat Mode Circuit is work correctly
or not.
4. If the Fuser is not work caused by melting. 4. Replace the Fuser.
8.4.2 LSU Error
Symptoms Indicated MOTOR ERROR / HSYNC ERROR on the LCD Panel.
1. Check the LSU Connector. - Replace the LSU.

- Replace the Main Board if the same error occurs
2. Check the LSU Motor. replace the LSU.
3. Check the Signal of HSYNC.
8.4.3 Fuser does not work due to melting of the gear.
Symptoms The Motor breaks away from its place due to gear melting away.
1. The Fuser does not work and make noise. - Replace the Fuser.
- Replace the Main PBA.
- Replace the SMPS.
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Samsung Electronics
8.4.4 Paper Empty
Symptoms Indicated "Paper Empty" even though paper is ready.
1. If the Actuator of Paper Empty Sensor is bended or 1. Replace the Actuator of Paper Empty Sensor.
transformed.
2. If the Engine PBA is defective. Check the Feed/Exit 2. Replace the Sensor Board.
Sensor under EDC Mode.
3. Check the connector.
8.4.5 Paper Empty without indication.
Symptoms Not indicated "Paper Empty" when paper is empty.
1. If the Actuator of Paper Empty Sensor is bended or 1. Replace the Actuator of Paper Empty Sensor.
transformed.
2. If the Engine PBA is defective. Check the Feed/Exit 2. Replace the Sensor Board.
Sensor under EDC Mode.
8.4.6 Cover Open
Symptoms Indicated “Cover Open” Error even though cover is closed.
1. Check if the Hook Lever inside Duplex Cover is bro- 1. Replace the Duplex Cover.
ken or transformed.
2. Check the Cover SW Connector inside Main PBA 2. Check the Cover Open Sensor under EDC Mode.
and Circuit. • Check the condition of contact of Cover Open
Sensor Connector.
• Check the Lever of Micro S/W.
• Replace the Cover Open Sensor or Main PBA.
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Samsung Electronics
8.4.7. Can not sense the Opened Cover.
Symptoms Indicated "Ready" when cover opened.
1. Check the Circuit and Cover S/W Connector inside - Check the condition of insertion for Cover Open
Engine Board. Check the Cover Open Sensor under Sensor Connector.
EDC Mode. - Replace the Cover Open Sensor or Main PBA.
8.4.8 Defective Motor
Symptoms Main Motor does not work and paper does not feed when printing. Come Jam 0.
1. Check if the Motor Harness or Motor PCB is broken 1. Replace the Motor.
or not.
2. Test Motor under EDC Mode. 2. Replace the Main PB.
8.4.9 No Power
Symptoms Panel Message does not display or Power does not supply to the Set when Power is on.
1. Check the Input and Output of SMPS. 1. Replace the Power Cable or SMPS.
2. Check the Panel Ass'y if Panel LED and LCD does 2. Replace the Main PBA or Panel Ass'y.
not indicate after normal Warming-Up.
3. Check if +24VDC and Power Supplier are grounded 3. Replace the components used for +24VDC.
or not.
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Samsung Electronics
8.4.10 Curried Vertical Line
Symptoms Vertical Line is curried when printing.
1. Check the LSU under EDC Mode if the +24CVD 1. Replace the LSU or Main PBA.
from Controller Board connected to LSU is unstable.
2. If the LSU Clock is changed. 2. Replace the Main PBA.
8.4.11 Low Toner
Symptoms Indicated "Low Toner" on the LCD Panel.
1. Indicated "Low Toner" on the LCD Panel if capacity 1. Replace the Toner Cartridge.
of toner is within 10 %.
2. Check the condition of contact for DEVE PBA inside - Replace the Toner Joint PBA.
Developer.
- Replace the Main PBA.
8.4.12 Replace CART.
Symptoms Indicated "Ready Replace CART" on the LCD Panel.
1. "Ready Replace CART" is displayed when Value of 1. Replace the Toner Cartridge.
Image Count is over 50,000. Image Density is
dimmed and can print by each paper when press the
twinkled button On-Line.
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Samsung Electronics
8.5 Treatment of Error Message.
ADC Not Confirm Error The ADC(Analog -to - Digital Conversion) is defective.
1. Re-check after Power On/Off.

2. Replace the Main PBA if the same symptoms are occur.
Cover Open Cover is opened.
1. DEVE Cover or Duplex Cover is opened. Check and close it correctly.

2. Check the condition of assembling of Cover Open Sensor.
--> Replace if there are damaged or wrong assembling part.
If Developer Driving Motor does not work, it because of wrong contact

Dev. Motor Error of Connector or the Motor has stopped due to increase of Torque for
Toner Cartridge by physically.
1. Open Deve Cover and check the Torque by color of Toner Cartridge.
--> Judge the capacity of Torque rounding the Toner Cartridge by hand. -->Replace the Developer if judged capacity
of specific Color Torque is strong.
2. Open Rear Cover and check if the Deve Motor Harness is assembled correctly.
3. Open Main PBA Cover and check if the Harness (24pins) connected to Deve Drive PBA is assembled correctly.
--> Replace the Harness if there are damaged or wrong assembled parts.
4. Check if the Power Source supply to the Main PBA.
--> Replace the SMPS if the Power Source does not supply from the SMPS correctly.
--> Replace the Main PBA if the Power Source supply from the SMPS.
* The temperature of Fuser is lower than Printing temperature.

Low Heat Error * The Harness of Fuser does not connected.
1. Check if the Fuser is installed correctly.

--> If not, re-install.
2. Check the applying electric current at the AC Line of Fuser (It is a copperplate.)
--> If it is no good, check below No.3 and No.4.
3. Check the Thermostat of Fuser.
--> If it is nor normal replace the Thermostat.
4. Check if the Thermostat of Fuser is assembled to the Surface of Roller correctly.
--> Replace the Thermostat if it is not.
5. Check the Heat Lamp of Fuser.
--> Replace the Lamp if it is not normal.
6. Check the Harness connected to the SMPS and Fuser.
--> Put the Harness to Connector if it comes off.
7. Replace the Main PBA.
8. Replace the SMPS.
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Samsung Electronics
Over Heat Error The temperature of Fuser is higher than Printing temperature.
1. Check if the Thermostat of Fuser is assembled to the Surface of Roller correctly.

--> Replace the Thermostat if it is not.
2. Check the Thermostat of Fuser.
--> If it is nor normal replace the Thermostat.
3. Check the Harness connected to the SMPS and Fuser.
5. Replace the SMPS.
Warning : You must replace the Fuser Ass'y if Over Heat Error occurred.
Do not replace only the Thermistor.
LSU Error There are some problems in the LSU.
1. Check the HSYNC during testing the LSU Motor under Engine Diagnostic Mode.
2. Check the Harness connected to the Engine Controller and LSU.
3. Replace the LSU.
Main Motor Error Main Motor drive the OPC, ITB and Pick-Up is defective.
1. Open Deve Cover and Top Cover and then check the OPC Unit and ITB Unit.
--> Re-install if they are not normal.
2. Open Rear Cover and then check the Main Motor Harness.
3. Check if the Power Source supply to the Main PBA.
--> Replace the SMPS if it is nor normal.
4. Check if the Voltage from CN27 No.2 of Main PBA is about 0 V.
--> Replace the Main PBA if it is not normal.
5. Check if the Voltage from CN27 No.8 of Main PBA is about 0 V.
--> Replace the Main PBA if it is not normal.
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Samsung Electronics
It caused by opened circuit of Harness of Waste Motor or stopping due

Waste Motor Error to increase of Torque of Waste Motor during operating the Waste
Motor.
1. Open the Front Cover and then check if the Waste Toner Tank is clogged through the Waste Toner.
--> Cut through it and replace the Waste Toner Tank.
2. Open the Top Cover and then remove the ITB Unit and OPC Unit and check if the outlet of OPC Waste is clogged.
3. Remove the Front Cover and then check the Waste Motor Harness.
4. Remove the HVPS Cover and then check the HVPS OEM Harness is assembled correctly.
5. Measure the Voltage from CN2 Pin1 and Pin3 of OEM PBA. (Normal : Over +10VDC)
--> replace the OEM PBA if there is no output.
It caused by wrong assembling of ITB Unit or Locked incorrectly and

Image Transfer Error when Home Sensor in the ITB Unit is defective.
1. Open Top Cover and then check if it is locked at the ITB Unit correctly.
--> Lock again if it is not normal.
2. Replace the ITB Unit if the same error occurs even though re-install the ITB Unit lots of times.
3. Check the condition of assembling of ITB Harness of Main PBA if the same error occurs after replacing the ITB Unit.
4. Check the signal from the Pin 1 of CN10 of Main PBA.
--> Replace the Main PBA if the signal is Active Low.
Invalid Drum Cartridge Can not communicate with OPC Unit.
*It caused by wrong value of OEM Resistor in the OPC Unit.

*It caused by miss-figuring the value of OEM Resistor because of contamination of contact point.
1. Check if it is an original Drum Cartridge.

--> Replace to the original one if it is not.
2. Clean the contact point on the OPC Unit.
3. Check the Harness connected with Engine Controller and Toner ID.
4. Check the D11 of Engine Controller.
--> Replace the Engine Controller if it is opened or shorted.
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Samsung Electronics
Invalid Image Transfer Can not communicate with ITB Unit.
*It caused by wrong value of OEM Resistor in the OPC Unit.
1. Open the Top Cover and then check if it is locked at the ITB Unit correctly.
--> Lock again if it is not normal.
2. Replace the ITB Unit.
3. Check the Voltage from Pin4 of CN10 in the Main PBA if the same error occurs even though re-install the ITB Unit
lots of times.
--> Replace the ITB Harness if there is no fixed voltage.
Invalid Toner [Color] It caused by wrong value of OEM Resistor in the Toner Cartridge.
1. Clean the 3 points of contact of Toner Cartridge and then re-install.

2. Replace the Toner Cartridge if the same error occurs.
3. Remove the Front Cover and then check the condition of contact between OEM PBA and Terminal if the same error
occurs.
--> Clean or Re-assemble.
4. Replace the OEM PBA, HVPS and Main PBA in order if the same error occurs.
It occurs when the Fusible Resistor of Toner Cartridge does not

Invalid NEW Toner [Color] opened within regulation time.
1. Clean the 3 points of contact of Toner Cartridge and then re-install.]

2. Replace the Toner Cartridge if the same error occurs.
3. Replace the OEM PBA, HVPS and Main PBA in order if the same error occurs.
Jam 0 In [Tray] Paper is caught in the tray.
1. Open the Duplex Cover and then remove the caught paper.
2. Open the Cassette and then check if the paper loaded in to the Guide after removing the caught paper.
3. Check if the location of Lever of the Feed Sensor is normal.
4. Check if the operation of Pick-Up Clutch under the Cassette is normal.
5. Check the condition of assembling of Harness in the Main PBA if the Clutch does not work.
6. Replace the Main PBA if the voltage from the Pin 2 of CN32, CN25 in the Main PBA is +24VDC.
(Normal Output : Pin 1 = +24VDC, Pin 2 = 0V)
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Samsung Electronics
Jam In Duplex Path Paper is caught during the Duplex Printing.
1. Open the Duplex Cover and then remove the paper.

2. Remove the alien on the Duplex Path.
Jam In Exit Area Paper is caught in the Exit Area.
1. Check the Actuator-Exit.

--> Replace the Fuser if it is bended or work incorrectly.
2. Check if the Paper Guide Rib of Guide-Output is contaminated.
--> Replace the Fuser or Exit Ass'y if it is not normal.
3. Check the condition of operation of Fuser Roller.
Jam Inside Printer Paper is caught inside printer
1. Open the Duplex Cover and then remove the paper.

2. Check the Actuator-Feed.
--> Replace the Feed Sensor if it is bended or work incorrectly.
Load Manual
The Multi-Purpose Tray is empty in the manual feed mode.
Press Cont Key
Load a sheet of print material and press the On-Line/Continue button. You need to press the button for each page to
be printed.
The size of paper in the tray and the size of printer information screen
Load [Size] In [Tray] are different.
*In case of this the size of paper and tray is indicated.
Load the right size of paper again.
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Samsung Electronics
Memory Overflow Not enough Memory Capacity.
The procedure will be canceled automatically and return to the Waiting Mode. Expand the capacity of memory.
Page Too Complex The layout of document is so complex.
Print again after making the layout simple and erase an not necessary image. You have to expand the capacity of
memory if the message is appear continuous.
Press Cont Key Not enough the Toner

Replace [Ctrl] Press the button [On-Line/Continue] to print continuous.
* Press the button [On-Line/Continue] to print continuous.

* Replace the Toner Cartridge if the quality of printing is so dim.
* You can select if this message will be indicated on the LCD Pane or not.
Press Cont Key You have to replace the Drum Cartridge soon.
Replace Drum Press the button [On-Line/Continue] to print continuous.

* Replace the Drum if the quality of printing is so dim.
Press Conf Key You have to replace the Transfer soon.

Replace Transfer Press the button [On-Line/Continue] to print continuous.

* Replace the Transfer if the quality of printing is so dim.
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Samsung Electronics
Press Cont Key You have to replace the T2 Roller soon.

Replace T2 Roller Press the button [On-Line/Continue] to print continuous.

* Replace the T2 Roller if the quality of printing is so dim.
Ready IP Conflict IP address conflict with address of other interface.
Change the IP Address.
Ready [CMYK] Low Tone Not enough Toner Cartridge of indicated Color.
Replace the Toner Cartridge of indicated Color.

Wave the Toner Cartridge to improve the quality of printing for a time.
Replace Drum Cartridge It occurs when the OPC Unit does not be installed.
1. Check the condition of installation of OPC Unit.

2. Check the condition of Locking of OPC Unit.
3. Check the condition of assembling of OPC OEM Harness of Main PBA.
Replace Image Transfer It occurs when the ITB Unit does not be installed.
*If the ITB Unit does not be installed

*The value of OEM Resistor be recognized by the value of opened due to the contamination of Contact point.
1. Open the Top Cover and then check if the ITB Unit is installed.
2. Check the condition of Locking of ITB Unit.
3. Replace the ITB Unit.
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Samsung Electronics
Replace Toner [Color] It occurs when the Toner Cartridge of indicated Color is not installed.
*If the Toner Cartridge does not be installed

*The value of OEM Resistor be recognized by the value of opened due to the contamination of Contact point.
1. Open the Deve Cover and then check if the Toner Cartridge is installed.
2. Check if the contact point is contaminated.
3. Replace the Toner Cartridge.
4. Replace the OEM PBA, HVPS and Main PBA in order.
Tray2 Error It occurs when Tray2 is not installed correctly.
Re-install the Tray2 after turning off the S/W.
Tray2 Jam Cover Open Cover of Tray2 is opened.
Close the cover of Tray2.
Waste Toner Full/Not Install Waste Toner Tank is full or not installed.
1. Replace the Waste Toner Tank or install correctly.

2. Check the Lever of Waste Toner Sensor.
3. Check the condition of assembling of Harness.
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Samsung Electronics
EXPLODED VIEW & PARTS LIST
9
9. Exploded View & Assembly Parts List
Contents
9.1 Main Exploded View

9.2 Cover Front Exploded View
9.3 Cover Top Exploded View
9.4 Cover Deve Exploded View
9.5 Exit Ass’y Exploded View
9.6 Duplex Ass’y Exploded View
9.7 Deve-Drive Ass’y Exploded View
9.8 Main-Drive Ass’y Exploded View
9.9 Fuser Ass’y Exploded View
9.10. Cassette Ass’y Exploded View
9.11. SCF Cassette Ass’y Exploded View
9.12. Frame SCF Ass’y Exploded View
9.13 Main Frame Exploded View
9.14 Front Frame Exploded View
9.15 Rear Frame Exploded View
9.16 Base Frame Exploded View
9.17 MP Ass’y Exploded View
9.18 Pick-up Ass’y Exploded View
9.19 FeederAss’y Exploded View
9.20 Guide Paper Exploded View
9.21 ITB Cam Ass’y Exploded View
9.22 Dummy Fuser Base Ass’y Exploded View
Deal dreawings and service parts are declared for the items with higher rate
of inferiority and replaceable in the level of service description only.
If inferiority occurs, you can replace the parts by the unit declared in deal
drawings and service items.
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Samsung Electronics
Screws Used in the Printer

The screws in the table are used in this printer. After disassembling, do use suitable
screw when reassembling it.
NO DESCRIPTION SEC CODE SPEC NO DESCRIPTION SEC CODE SPEC

S1 SCREW-MACHINE 6001-000485 2.6*4, YELLOW S11 SCREW-TAPTITE 6003-000269 3*6, YELLOW

S13 SCREW-MACHINE 6001-000568 3*8, WHITE
S4 SCREW-TAPTITE 6002-000308 2.6*6, YELLOW

S16 SCREW-MACHINE 6003-001068 2*16, BLACK


S18 SCREW-SPICIAL 6009-001396 3*10, BLACK

S19 SCREW-TAPTITE 6003-000008 4*6, WHITE
S10 SCREW-ASS’Y MACH 6006-000127 3*6, YELLOW
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Samsung Electronics
Consumables & Options
Toner Cartridge (C,M,Y,K) ITB Unit
OPC Drun Cartridge SCF
Waste Toner Tank NIC(Network Interface Card)
NIC(Network Interface Card)

Memory Card
: Wireless
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Samsung Electronics
9-4
17
3
1
12 16
23 16-2
Service Manual
40
6
2
16-4
23
40
5 45
43
16-3
43-2
9
4 29 16-1
10
43-1
46
52 31 S8
32
9.1 Main Exploded View
20
54
42
21 28 47
30
49 48
18
24 S9
19
53 8
24 33
36
27
58 25 S8
11
56-2 19-2
55 19-3
56-1
56 19-1
57-1 37
26
35 22 39
38
22 13
57
44
15
14
49
Samsung Electronics
Main Assembly Parts List

SA : Service Available
O : Service available X : Service not available
No. Description SEC.Code Q’ty SA Remark

0 CLP-500
1 ELA UNIT-ITB JC96-02769A 1
2 ELA UNIT-OPC JC96-02770A 1
3 ELA UNIT-DEVE BLACK JC96-02765A 1
4 ELA UNIT-DEVE CYAN JC96-02766A 1
5 ELA UNIT-DEVE MAGENTA JC96-02767A 1
6 ELA UNIT-DEVE YELLOW JC96-02768A 1
7 ELA UNIT-MAIN DRIVE JC96-02771A 1
8 ELA UNIT-DEVE DRIVE JC96-02772A 1
9 ELA UNIT-FUSER 230V JC96-02773A 1
10 PBA MAIN-CONTROLLER JC92-01441A 1
11 MEA MAIN-FRAME JC97-01757A 1
12 MEA-EXIT JC97-01754A 1
13 MEA-DUPLEX JC97-01756A 1
14 MEA-CASSETTE JC97-01753A
15 ELA HOU-COVER FRONT JC96-02798A 1
16 MEA HOU-COVER REAR JC97-01764A 1
16-1 PMO-COVER REAR JC72-01201A 1
16-2 PMO-COVER REAR DECO JC72-01202A 1
16-3 PMO-COVER OPEN BOARD JC72-01203A 1
16-4 LABEL(P)-REAR JC68-01176A 1
16-S8 SCREW-TAPTITE 6003-000119 1
17 MEA HOU-COVER TOP JC97-01765A 1
18 MEA HOU-COVER DEVE JC97-01766A 1
19 ELA UNIT-SMPS 230V JC96-02875A 1 230V
19-1 SMPS-V2 JC44-00056A 1
19-2 IPR-BRKT SMPS JC70-00415A 1
19-3 SHEET-SMPS JC63-00236A 1
19-S9 SCREW-TAPTITE 6003-000266 1
20 HVPS-BIGBANG JC44-00058A 1
21 UNIT-LSU BIGBANG JC59-00020A 1
22 WASHER-PLAIN 6031-001255 2
23 RING-E 6044-000125 2
24 CABLE CLAMP 6502-000132 2
25 CBF HARNESS-LIU GND JB39-00103A 1
26 ICT-PIN ADF JB70-00168A 1
27 FAN-DC JC31-00025A 1
28 CBF HARNESS-MAIN LSU JC39-00271A 1
29 CBF HARNESS-MAIN_PANEL JC39-00281A 1
30 CBF HARNESS-DEVE_MOTOR JC39-00287A 1
31 CBF HARNESS-MAIN_MOTOR JC39-00293A 1
32 CBF HARNESS-MAIN_SMPS JC39-00296A 1
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Main Assembly Parts List


33 MEP-CLUTCH CAM SOLENOID JC47-00007A 1
34 BUSH-8/5 JC61-00426A 1
35 SHEET-COVER FRONT OPE JC63-00184A 1
36 SHEET-HVPS JC63-00234A 1
37 ?? ?? 1
38 GEAR-OPC DRIVE 2_Z40 JC66-00478A 1
39 CAM-T2 ENGAGE JC66-00512A 1
40 SHAFT-COVER EXIT HINGE JC66-00616A 2
41 IPR-BRKT GUIDE ECU C JC70-00382A 1
42 IPR-BRKT ECU LOWER JC70-00409A 1
43 MEA UNIT-BRKT ECU UPPER JC97-01760A 1
43-1 IPR-BRKT ECU UPPER JC70-00410A 1
43-2 IPR-BRKT ECU OPTION JC70-00411A 1
43-S9 SCREW-TAPTITE 6003-000266 2
44 ELA UNIT-SCF JC96-02856A 1
45 PMO-COVER SENSOR BASE JC72-01147A 1
46 PMO-HARNESS C JC72-01165A 1
47 PMO-HARNESS D JC72-01166A 1
48 PMO-HARNESS E JC72-01167A 1
49 PMO-LSU SHUTTER JC72-01170A 1
50 PMO-DEVE OPEN LINK JC72-01175A 1
51 PMO-DEVE OPEN LINK GUIDE JC72-01176A 1
52 PMO-COVER LSU/DEVE JC72-01220A 1
53 MEC UNIT-TERMINAL S JC97-01771A 4
53-1 SPRING ETC-HV LARGE JC61-70929A 1
53-2 IPR-TERMINAL JC70-00050A 1
54 PBA SUB-DEVE DRIVE JC92-01442A 1
55 BRACKET-COVER SMPS TBD 1
56 MEA UNIT-DUCT FUSER JC97-01811A 1
56-1 PMO-DUCT FUSER LOWER JC72-01150A 1
56-2 PMO-DUCT FUSER UPPER JC72-01151A 1
56-S8 SCREW-TAPTITE 6003-000196 1
57 MEA UNIT-WASTE TONER TANK JC97-01821A 1
57-1 COVER-M-WASTE TONER UPPER JC63-00271A 1
57-2 COVER-M-WASTE TONER LOWER JC63-00272A 1
57-3 CAP-TONER OPC JC67-00044A 2
58 PMO-DEVE OPEN LINK JC72-01175A 1
S2 SCREW-TAPPING 6002-000172 2
S5 SCREW-TAPTITE 6003-000119 6
S15 SCREW-MACHINE 6001-000568 2
Service Manual
9-6
Samsung Electronics
9.2 Cover Front Exploded View

10
8
11
S8
0
17
7
S8
5
11
1
7
9
2
12 16
5
15
2
14
S4
S3 13
3
S3
6
18
S5
Service Manual
9-7
Samsung Electronics
Cover Front Assembly Parts List


0 ELA HOU-COVER FRONT JC96-02798A 1 XAA
ELA HOU-COVER FRONT JC96-02798B 1 XEU
1 COVER-FRONT HINGE F JC63-00179A 1
2 COVER-FRONT HINGE R JC63-00180A 2
3 LOCKER-M-WASTER TANK JC64-00080A 1
4 BADGE-BRAND JC64-00081A 1
5 LOKER-LATCH PUSH JB64-00007A 2
6 LOCKER-TANK PIN JC64-00087A 1
7 PMO-TIE STOPPER JC72-00766A 2
8 PMO-COVER FRONT DECO JC72-01192A 1 XAA
PMO-COVER FRONT DECO JC72-01192B 1 XEU
9 PMO-COVER FRONT INNER JC72-01193A 1
10 PMO-COVER FRONT OPEN JC72-01194A 1
11 PMO-COVER FRONT PUSH JC72-01195A 2
12 PMO-COVER OPE FRAME JC72-01196A 1
13 PMO-OPE KEY 1 JC72-01197A 1
14 PMO-OPE KEY 1 CAP JC72-01198A 1
15 PMO-OPE KEY 2 JC72-01199A 1
16 PMO-OPE KEY 2 CAP JC72-01200A 1
17 LABEL(P)-FRONT INNER JC68-01175A 1
18 PBA SUB-PANEL JC92-01443A 1
S3 SCREW-TAPPING 6002-000175 4
Service Manual
9-8
Samsung Electronics
9.3 Cover Top Exploded View
0 6
5
3 4
2
8
S15
7
S15
Cover Top Assembly Parts List


0 MEA HOU-COVER TOP JC97-01765A 1
1 PMO-COVER TOP JC72-01204A 1
2 SPRING-CS 6107-000117 1
3 PMO-COVER TOP BUTTON JC72-01205A 1
4 SPRING-CS 6107-001198 2
5 PMO-COVER TOP OPENER JC72-01206A 2
6 PMO-COVER TOP STACKER JC72-01207A 1
7 STOPPER-STACKER F JC61-00714A 1
8 STOPPER-STACKER R JC61-00715A 1
9 LAVEL(P)-TOP JC68-01181A 1
9.4 Cover Deve Exploded View
5
1
0 10
4 S14
11 8
2
7 S14
3
12
11
Cover Deve Assembly Parts List


0 MEA HOU-COVER DEVE JC97-01766A 1
1 SPRING-TS 6107-001206 1
2 IPR-COVER DEV LOCK BAR JC70-00436A 1
3 LABEL(P)-DEVE COVER JC68-01180A 1
4 PMO-COVER DUP LOCKER F JC72-01081A 1
5 PMO-COVER DUP LOCKER R JC72-01082A 1
6 PMO-COVER DEVE JC72-01213A 1
7 PMO-COVER DEVE INNER JC72-01214A 1
8 PMO-COVER DEV SPRING CAP JC72-01215A 6
9 ARM-COVER DEVE HINGE JC66-00563A 1
10 PMO-COVER DUPLEX HANDLE JC72-01079A 1
11 SPRING-CS 6107-01180A 8
12 PMO-COVER DEV SPRING CYAN JC72-01215B 2
Service Manual
9-10
Samsung Electronics
9.5 Exit Ass’y Exploded View
5 1 0
6
S19
9
10
S14
8
S8
S19 7
11
11-6
11-3
12
11-7
11-2
S8 11-21
11-5 11-22
11-9
11-10
11-23
11-8
11-S8
11-1
11-4
11-S8
11-13
11-14
11-15
11-16
11-18
11-17 11-12
S8
11-19
11-20-1
11-20
11-20-2
11-11
11-S8
Service Manual
9-11
Samsung Electronics
Exit Ass’y Assembly Parts List


0 MEA-EXIT JC97-01754A 1
1 PMO-COVER EXIT JC72-01099A 1
2 PMO-C/EXIT LOCK COVER JC72-01217A 1
3 IPR-COVER EXIT BAR JC70-00440A 1
4 PMO-COVER DUP LOCKER F JC72-01081A 1
5 PMO-COVER DUP LOCKER R JC72-01082A 1
6 SPRING-TS 6107-001209 2 LOCKER
7 PMO-COVER EXIT GUIDE JC72-01098A 1
8 PMO-COVER EXIT F CAP JC72-01097A 1
9 COVER-EXIT R CAP JC63-00174A 1
10 IPR-COVER EXIT HINGE JC70-00372A 1
11 MEA UNIT-EXIT FRAME JC97-01763A 1
11-1 PMO-GUIDE EXIT UPPER JC72-01103A 1
11-2 ROLLER-EXIT DRIVE JC66-00607A 1
11-3 PMO-BEARING LARGE DP JC72-00885A 1
11-4 IPR-GROUND EXIT JC70-00374A 1
11-5 PMO-BEARING LARGE DP JC72-40978A 1
11-6 GEAR-DUPLEX JC66-40912A 1
11-7 RING-C 6044-000159 1
11-8 GEAR-DP,IDLE JC66-40911A 3
11-9 RING-CS 6044-000001 3
11-10 MEC-BRUSH ANTISTATIC JC75-00095A 1
11-11 PMO-HOLDER GROUND BALL JC72-01233A 1
11-12 PMO-GUIDE EXIT LOWER JC72-01102A 1
11-13 PMO-ROLLER FD F JC72-41007A 4
11-14 PMO-ROLLER FD R JC72-41008A 4
11-15 HOLDER-EXIT(MC) JC61-00547A 4
11-16 SPRING ETC-EXIT ROLL FD JC61-70911A 4
11-17 ROLLER-EXIT IDLE JC66-00608A 1
11-18 PEX-ROLLER EXIT F_UP JC72-20901A 2
11-19 IPR-GROUND EXIT PLATE JC70-00375A 1
11-20 MEA UNIT-TERMINAL:L JC97-01410A 2
11-20-1 SPRING ETC-HV SMALL JC61-70930A 1
11-20-2 ICT-SHAFT HV LARGE JC70-40912A 1
11-21 ROLLER-EXIT-DRIVE-IDLE JC66-00670A 1
11-22 SHEET-EXIT UPPER JC63-00265A 1
11-23 SPRING-ETC-CLUTCH JB61-70922A 3
11-S8 SCREW-TAPTITE 6003-000196 4
12 LABEL(P)-EXIT JC68-01150A 1
Service Manual
9-12
Samsung Electronics
9.6 Duplex Ass’y Exploded View
2-29 2-8 2
S8
2-6
2-10 2-9
2-7
2-28
2-1 2-5
2-3 2-16
2-11 2-14
2-2 2-22
2-15
2-10 2-20
2-16
2-21
2-4 S8
2-14
2-26 2-15
2-19
2-12
2-23
2-13 0
2-24 2-25 2-12-6
S5
2-12-1 2-12-8
2-12-2
2-12-4 2-27 3
2-17
S8
2-12-3
2-30
2-12-4 2-18
2-12-7
2-12-5
2-17
2-30
1
S8 2-18
1-6
1-2
S8
1-10
1-3
1-8
1-11
S8
1-11 1-12-6
1-9
1-1
1-12-7
1-7
1-12-5
1-5
1-12-2
1-4
1-12-2
1-12-4
1-12 1-12-3
1-12-1
Service Manual
9-13
Samsung Electronics
Duplex Ass’y Assembly Parts List


0 MEA-DUPLEX JC97-01756A 1
1 MEA HOU-COVER RIGHT JC97-01758A 1
1-1 PMO-COVER DUPLEX JC72-01078A 1
1-2 IPR-COVER DUP LOCK SHAFT JC70-00370A 1
1-3 PMO-COVER DUPLEX HANDLE JC72-01079A 1
1-4 SPRING-TS 6107-001206 1
1-5 PMO-COVER DUP LOCKER F JC72-01081A 1
1-6 PMO-COVER DUP LOCKER R JC72-01082A 1
1-7 PMO-COVER DUPLEX LINK JC72-01080A 1
1-8 COVER-DUPLEX LINK R JC63-00172A 1
1-9 PMO-COVER DUPLEX RAIL JC72-01083A 1
1-10 COVER-DUPLEX RAIL R JC63-00173A 1
1-11 SPRING ES 6107-001294 2
1-12 MEA UNIT-TRAY MP JC97-01759A 1
1-12-1 PMO-TRAY CASE MP JC72-01096A 1
1-12-2 PMO-TRAY LINK MP JC72-00857B 2
1-12-3 IPR-GUIDE LATCH JB70-10906A 1
1-12-4 PMO-TRAY COVER MP JC72-00777B 1
1-12-5 PMO-SIDE GUIDE MP JC72-00547H 1
1-12-6 PMO-TRAY EXIT MP JC72-00778B 1
1-12-7 LABEL(R)-HEIGHT,MP JC68-00697A 1
2 MEA UNIT-DUPLEX JC97-01828A 1
2-1 IPR-BRKT GUIDE A JC70-00361A 1
2-2 PMO-HOLDER SAW JC72-41213A 1
2-3 IPR-PLATE SAW JC70-10232B 1
2-4 PMO-FRAME DUPLEX JC72-01084A 1
2-5 PMO-PULLEY BELT JC72-01094A 2
2-6 BELT-TIMMING JC66-20901A 1
2-7 GEAR-DUPLEX IDLER_Z25 JC66-00513A 2
2-8 PMO-COVER BELT JC72-01077A 1
2-9 IPR-BRKT GROUND TR JC70-00367A 1
2-10 SPRING-ES 6107-001202 2
2-11 GEAR-MP/DUP DRV JC66-00346A 1
2-12 MEA UNIT-T2 JC97-01761A 1
2-12-1 RING-E 6044-000231 1
2-12-2 GEAR-TRANSFER IDLER_Z47 JC66-00515A 1
2-12-3 SHAFT-GUIDE TR JC66-00619A 1
2-12-4 PMO-HOLDER TRANSFER JC72-01087A 2
2-12-5 PMO-LEVER TR FRONT JC72-01090A 1
2-12-6 PMO-LEVER TR REAR JC72-01091A 1
2-12-7 PMO-LINK TR FRONT JC72-01092A 1
2-12-8 PMO-LINK TR REAR JC72-01093A 1
Service Manual
9-14
Samsung Electronics
Duplex Ass’y Assembly Parts List


2-13 IPR-BRKT GROUND TR1 JC70-00368A 1
2-14 PMO-SHAFT DUP DRIVER JC72-00764A 2
2-15 RPR-RUBBER EXIT JC73-10203A 2
2-16 PMO-BUSHING TX(B4) JG72-40744A 4
2-17 PMO-ROLLER_EXIT JC72-40361A 2
2-18 SPRING ETC-FUSER EXIT JC61-70976A 2
2-19 IPR-BRKT GUIDE B JC70-00362A 1
2-20 IPR-BRKT GUIDE DUPLEX JC70-00369A 1
2-21 IPR-BRKT GROUND B JC70-00364A 1
2-22 IPR-BRKT GROUND A JC70-00363A 1
2-23 IPR-BRKT GROUND D JC70-00366A 1
2-24 IPR-BRKT GROUND C JC70-00365A 1
2-25 CBF HARNESS-OPE GROUND JC39-00036A 1
2-26 PMO-BUSHING FEED JC72-00730A 1
2-27 PMO-GUIDE LOWER DUPLEX JC72-01086A 1
2-28 RING-CS 6044-000001 1
2-29 PMO-GUIDE FEED JC72-01085A 1
3 MEA-T2 ROLLER JC97-01762A 1
2-30 POLY-WASHER 6031-001051 1
Service Manual
9-15
Samsung Electronics
9.7 Deve-Drive Ass’y Exploded View
5
20
S11
4
5
19
16
S17
15
4
18
2
4
18
6
7
13
13
12
14
13
10
11
0
8
17
1
5
21
Service Manual
9-16
Samsung Electronics
Deve-Drive Ass’y Assembly Parts List


0 ELA UNIT-DEVE DRIVE JC96-02772A 1
1 IPR-BRKT-DEVE FRONT JC70-00342A 1
2 MEP-CLUTCH SPRING DEVE JC47-00006A 4
3 SHAFT-DEVE CLUTCH JC66-00544A 4
4 BUSH-D6/L4 JC61-00699A 12
5 RING-E 6044-000125 12
6 SHAFT-DEVE DRIVE JC66-00545A 4
7 WASHER-PLAIN 6031-000023 4
8 GEAR-DEVE DRIVE 2_Z20 JC66-00465A 4
9 GEAR-IDLE Z51 JC66-00473A 1
10 RING-E 6044-000130 1
11 GEAR-ITB CLEAN RDCN JC66-00469A 1
12 GEAR-DEVE RDCN JC66-00468A 1
13 GEAR-DEVE IDLE_Z41 JC66-00466A 3
14 GEAR-DEVE IDLE_Z53 JC66-00467A 1
15 IPR-BRKT-DEVE REAR JC70-00343A 1
16 MOTOR DC-DEVE(BLDC) JC31-00022A 1
17 WASHER-PLAIN 6031-001255 4
19 GEAR-DEVE DRIVE 1_Z25 JC66-00464A 4
20 GEAR-DEVE CLUTCH 2_Z33 JC66-00463A 4
21 SHEET-HARNESS GUIDE JC63-00264A 1
Service Manual
9-17
Samsung Electronics
9.8 Main-Drive Ass’y Exploded View
37
10
35
14
8
20
28
16
38
33
0
22
5
9
42
23
31
24
25
32
21
3
26
12
15
42
27
18
11
13
12
S11
17
12
27
4
30
6
S17
36
5
27
29
19
2
7
1
S11
Service Manual
9-18
Samsung Electronics
Main-Drive Ass’y Assembly Parts List


0 ELA UNIT-MAIN DRIVE JC96-02771A 1
1 MOTOR DC-DEVE(BLDC) JC31-00022A 1
2 SOLENOID-DUPLEX JC33-00008B 1
3 MEP-CLUTCH CAM SOLENOID JC47-00007A 1
4 MEP-CLUTCH ELECTRIC FEED JC47-00008A 1
5 BUSH-8/5 JC61-00426A 6
6 BUSH-D6/L4 JC61-00699A 4
7 SPRING ETC-SOLENOID DP JC61-70915A 1
8 GEAR-FEED DRIVE_Z37 JC66-00470A 1
9 GEAR-FUSER DRIVE 1_Z47 JC66-00471A 1
10 GEAR-FUSER DRIVE 2_Z30 JC66-00472A 1
13 GEAR-ITB DRIVE 1_Z90 JC66-00475A 1
14 GEAR-ITB DRIVE 2_Z30 JC66-00476A 1
15 GEAR-OPC DRIVE 1_Z120 JC66-00477A 1
16 GEAR-OPC RDCN_Z120/Z60 JC66-00479A 1
17 GEAR-RDCN Z110/Z37 JC66-00480A 1
18 GEAR-RDCN Z62/Z48 JC66-00481A 1
19 GEAR-SWING DRIVE JC66-00482A 1
20 GEAR-T2 DRIVE_Z25 JC66-00483A 1
21 SHAFT-FEED DRIVE JC66-00546A 1
22 SHAFT-FUSER DRIVE JC66-00547A 1
23 SHAFT-ITB DRIVE JC66-00549A 1
24 SHAFT-OPC DRIVE JC66-00550A 1
25 SHAFT-T2 CAM JC66-00551A 1
26 SHAFT-T2 DRIVE JC66-00552A 1
27 “GEAR-EXIT/U,ID” JC66-40211B 1
28 IPR-BRKT MAIN FRONT JC70-00341A 1
29 IPR-BRKT MAIN REAR JC70-00344A 1
30 IPR-LINK SOLENOID JC70-00346A 1
31 PMO-HUB CLUTCH JC72-01064A 1
32 PMO-DUMMY CLUTCH JC72-01232A 1
33 WASHER-PLAIN 6031-000023 3
34 WASHER-PLAIN 6031-001002 3 “ITB,Feed,T2”
35 WASHER-PLAIN 6031-001255 3
36 RING-C 6044-000159 1
37 RING-E 6044-000231 1 Fuser
S11 SCREW-TAPTITE 6003-000269 4 Motor + Brkt-
Rear
S11 SCREW-TAPTITE 6003-000269 2 Solenoid-Duplex + Brkt-Rear
Service Manual
9-19
Samsung Electronics
9.9 Fuser Ass’y Exploded View
S2
20
7
S2
30
26
5
4
12
0
3
1
28
14
16
25
15
21
8
6
17
27
24
22
5
31
19
2
10
23
18
11
12
28
29
13
S10
S10
Service Manual
9-20
Samsung Electronics
Fuser Ass’y Assembly Parts List


0 ELA UNIT-FUSER 230V JC96-02773A 1 220V
1 ROLLER-HEAT JC66-00516A 2
2 PMO-BEARING FUSER F JC72-01058A 2
3 PMO-BEARING FUSER GEAR JC72-01059A 2
4 GEAR-FUSER_Z35 JC66-00510A 2
5 SPRING ETC-PR 6107-001193 2
6 PMO-FUSER UPPER JC72-01061A 1
7 PMO-FUSER LOWER JC72-01062A 1
8 IPR-GROUND FUSER JC70-00355A 1
9 NPR-ELECTRODE AC WIRE JC71-00043A 1
10 NPR-ELECTRODE GEAR JC71-00047A 1
11 NPR-ELECTRODE M JC71-00048A 1
12 THERMOSTAT 4712-000001 2
13 NPR-ELECTRODE F JC71-00046A 1
14 NPR-ELECTRODE PR JC71-00049A 1
15 NPR-ELECTRODE AC PLATE JC71-00044A 1
16 PMO-COVER THERMOSTAT JC72-01055A 1
17 PMO-COVER CLEANING JC72-01060A 1
18 ROLLER-EXIT IDLE JC66-00608A 1
19 PEX-ROLLER EXIT F_UP JC72-20901A 2
20 PMO-GUIDE DP SIDE JC72-01100A 1
21 NPR-ELECTRODE CONNECTOR JC71-00045A 1
22 LAMP-HALOGEN 4713-001178 1 300W 220V
23 LAMP-HALOGEN 4713-001176 1 500W 220V
24 PMO-ACTUATOR EXIT JC72-01056A 1
25 SPRING ETC-ACTUATOR 6107-001205 1
26 PMO-GUIDE OUTPUT JC72-01063A 1
27 THERMISTOR-NTC 1404-001310 1
28 NUT-HEXAGON 6021-000222 4
29 LABEL(R)-HV FUSER JC68-00407A 1 220V
30 PMO-GUIDE INPUT JC72-01208A 1
31 LABEL(P)-CAUTION,HOT_FU JC68-30928E 1
S10 SCREW-ASS’Y MACH 6006-000127 9
Service Manual
9-21
Samsung Electronics
9.10. Cassette Ass’y Exploded View
13
5
10
14
15
9
12 4
S8
11
Service Manual
9-22
Samsung Electronics
Cassette Ass’y Assembly Parts List


0 MEA-CASSETTE JC97-01753A 1
1 PMO-FRAME CASSETTE JC72-01069A 1
2 PMO-COVER CASSETTE JC72-01068A 1
3 PMO-GUIDE SIDE CST JC72-01072A 1
4 PMO-GUIDE FRONT CST JC72-01070A 1
5 PMO-GUIDE REAR JC72-01071A 1
6 IPR-PLATE K/UP JC70-00357A 1
7 IPR-FINGER JC70-00220A 1
8 IPR-SPRING PLATE G/SIDE JC70-00358A 1
9 IPR-GUIDE PLATE PAPER JC70-00356A 1
10 SPRING ETC-KNOCK UP(270) 6107-001200 2
11 SPRING ETC-LOCKER JG61-70531A 1
12 PMO-LOCKER PLATE JC72-01073A 1
13 RPR-PAD CST JC73-10910A 2
15 LABEL(R)-HEIGHT XEROX JC68-00516A 1
14 LABEL(R)-INSTRUCTION JC68-01174A 1
Service Manual
9-23
Samsung Electronics
9.11. SCF Cassette Ass’y Exploded View
14
15
5 10
16
17
9
7
S8
4
S8
11
12
2 1
Service Manual
9-24
Samsung Electronics
SCF Cassette Ass’y Assembly Parts List


0 MEA UNIT-CASSETTE SCF(LTR) JC97-01809A 1 LETTER
0 MEA UNIT-CASSETTE SCF(A4) JC97-01809B 1 A4
1 PMO-FRAME CASSETTE(SCF) JC72-01238A 1
2 PMO-COVER CASSETTE(SCF) JC72-01236A 1
3 PMO-GUIDE SIDE(SCF) JC72-01243A 1
4 PMO-GUIDE FRONT CST JC72-00798B 1
5 PMO-GUIDE REAR(SCF) JC72-01239A 1
6 IPR-PLATE K/UP JC70-00221A 1
7 IPR-FINGER JC70-00220A 1
8 IPR-SPR PLATE G/SIDE JC70-10929A 1
9 IPR-GUIDE PLT PAPER JC70-10923A 1
10 SPRING-CS 6107-001190 2
11 “SPRING ETC-LOCKER,PLATE” JG61-70531A 1
12 PMO-LOCKER PLATE JC72-41210A 1
14 PMO-DUMMY SIDE GUIDE(SCF) JC72-01237A 1
15 RPR-PAD CST JC73-10910A 2
16 LABEL(R)-INSTRUCTION CST JC68-01174A 1
17 LABEL(R)-HEIGHT CST JC68-00709A 1
Service Manual
9-25
Samsung Electronics
9.12. Frame SCF Ass’y Exploded View
S8
S8
11
3-10 3-8
3-3
3
3-6
3-1
3-2 3-8
3-9 3-12 18
3-13
3-4
S8
3-5
3-11 S9
3-7
3-8
1-3 1
1-9
17 S8
S5 S8 1-1
1-4
16 1-S9
19 1-7
1-5 1-6
S5
S8 1-2 1-8
8
9
10 S5
15
6
14 7 4 9
5
2-7
2-2
2
2-S9 12
2-3
2-6
2-4
2-5
S5
2-1
S8
Service Manual
9-26
Samsung Electronics
Frame SCF Ass’y Assembly Parts List


0 MEA BASE-FRAME SCF JC97-01808A 1
1 ELA HOU-MOTOR SCF JC96-02283A 1
1-1 IPR-GROUND_ROLLER JC70-10467A 1
1-2 RING-E 6044-000125 4
1-3 MOTOR STEP-SCF JC31-10501A 1
1-4 SOLENOID-PICK UP JC33-00007A 1
1-5 GEAR-P/UP DRV SCF JC66-00330A 1
1-6 GEAR-IDLER OPTION JC66-40365A 1
1-7 GEAR-IDLE(Z=30) JC66-40950A 1
1-8 GEAR-IDLE(SCF) JC66-40954A 1
1-9 IPR-BRKT GEAR JC70-00251A 1
1-S9 SCREW-TAPTITE 6003-000266 5
2 MEA HOU-GUIDE LOWER SCF JC97-01825A 1
2-1 PMO-GUIDE LOWER RAIL(SCF) JC72-01242A 1
2-2 SPRING ETC-PAD JC61-70953A 2
2-3 PMO-BUSH IDLE ROLL-SCF16 JC72-00658A 2
2-4 PMO-HOLDER IDLE ROLL16 JC72-00660A 1
2-5 PMO-COVER GUIDE LOWER(SCF) JC72-01066A 1
2-6 PMO-GUIDE LOWER(SCF) JC72-01241A 1
2-7 PMO-ROLLER IDLE(SCF) JC72-01244A 1
3 MEA HOU-GUIDE UPPER SCF JC97-01826A 1
3-1 RING-E 6044-000231 1
3-2 SPRING ETC-PICKUP JC61-00482A 1
3-3 GEAR-PICK UP JC66-00326A 1
3-4 GEAR-FEED (SCF) JC66-40955A 1
3-5 PMO-ACTUATOR EMPTY JC72-00719A 1
3-6 PMO-SHAFT PICK UP JC72-00729A 1
3-7 PMO-GUIDE UPPER(SCF) JC72-01240A 1
3-8 PMO-BEARING SHAFT JC72-41191A 4
3-9 “PMO-BUSHING_P/U,MP” JC72-41364A 1
3-10 RPR-RUBBER PICK UP JC73-00086A 2
3-11 RPR-ROLLER FEED SCF JC73-00115A 1
3-12 PBA SUB-SCF COVER SENSOR JC92-01502A 1
3-13 PBA SUB-SCF P_EMPTY SENSOR JC92-01501A 1
4 FOOT-ML80 JC61-40001A 2
5 CAM-CATCH JC66-00050A 1
6 IPR-PLATE GROUND(A) JC70-00249A 1
7 IPR-PLATE LOCKER(L) JC70-00377A 1
8 IPR-PLATE LOCKER(R) JC70-00378A 1
9 PMO-BASE DECO(SCF) JC72-01065A 2
10 ICT-SHAFTZ_HV,LARGE JC70-40912A 4
Service Manual
9-27
Samsung Electronics
Frame SCF Ass’y Assembly Parts List


11 PMO-COVER TOP(SCF) JC72-01209A 1
12 PMO-DOOR SIDE(SCF) JC72-01210A 1
13 PMO-FRAME BASE(SCF) JC72-01211A 1
14 PMO-COVER SENSOR(SCF) JC72-01235A 1
15 SPRING-HV,LARGE JC61-00031A 1
16 CBF HARNESS-DRIVER GND JB39-00065A 1 15 m/m
17 CBF HARNESS-SCF_8P JC39-00102A 1
18 CBF HARNESS-GND JC39-00228A 1 20 m/m
19 PBA-MAIN JC92-01489A 1
Service Manual
9-28
Samsung Electronics
9.13 Main Frame Exploded View
15
5-1
5 8
5-2
29
3 3-3
3-6
3-5
3-4 7
32
3-2 28
6
3-1
4
30
25 14
26
18
27
11
10
1-17
1-1-2
1-10
1-1-5 1-2 1-14

1-1-3 1-4
1-1 1-15
S1
1-1-1
1-1-4 9
24
1-11
1-18
1-3
1-8
13
1-3
1-5
1-16
1-12
31
1-19 1-7
12
1-9
1-6
1-13 2
Service Manual
9-29
Samsung Electronics
Main Frame Assembly Parts List


1 MEA UNIT-OPC TONER DUCT JC97-01834A 1
1-1 ELA UNIT-TONER MOTOR JC96-02882A 1
1-1-S1 SCREW-MACHINE 6001-000485 2
1-1-1 RING-E 6044-000125 1
1-1-2 MOTOR DC-WASTE TONER JB31-00020B 1
1-1-3 BRACKET-WASTER TONER MOTOR JC61-00808A 1
1-1-4 GEAR WORM-WHEEL IDLE JC66-00653A 1
1-1-5 GEAR WORM-WASTE TONER JC66-00654A 1
1-2 CBF HARNESS-TONER GND JC39-00065A 1
1-3 BUSH-D6/L4 JC61-00699A 2
1-4 PLATE-VIBRATOR INLET JC61-00810A 1
1-5 BASE-M-WASTE TONER JC61-00820A 1
1-6 PIPE-WASTE BAR JC62-00129A 1
1-7 CAM-M-WASTE DUCT OUTLET JC66-00649A 1
1-8 GEAR WORM-WHEEL Z35 JC66-00651A 1
1-9 SHAFT-M-WASTE DUCT INLET JC66-00652A 1
1-10 DUCT-M-WASTE LIFTER JC67-00052A 1
1-11 DUCT-M-WASTE TONER INLET1 JC67-00053A 1
1-12 DUCT-M-WASTE TONER INLET2 JC67-00054A 1
1-13 PMO-PIPE WASTE TRANSFER JC72-01186A 1
1-14 SPONGE-WASTE LIFTER 1 JC72-01278A 1
1-15 SPONGE-WASTE LIFTER 2 JC72-01279A 1
1-16 SPONGE-WASTE DUCT OPC JC72-01285A 1
1-17 SPONGE-WASTE COVER JC72-01290A 1
1-18 RING-E 6044-000125 1
1-19 SPRING-WASTE DUCT OPC 6107-001201 1
2 HOLDER-ERASER JC72-01218A 1
3 MEA UNIT-LSU GUIDE BRKT JC97-01810A 1
3-1 IPR-BRKT LSU JC70-00388A 1
3-2 PMO-LSU BASE JC72-01169A 1
3-3 IPR-GROUND LSU JC70-00444A 1
3-4 IPR-PLATE OPC OEM JC70-00428A 2
3-5 MEA UNIT -TERMINAL S JC97-01771A 2
3-6 PMO-COVER OEM UPPER JC72-01146A 1
4 SHEET-HV HARNESS JC63-00248A 1
5 MEA UNIT-BRKT HVPS JC97-01767A 1
5-1 GUIDE-HVPS BOARD JC61-00838A 3
5-2 IPR-BRKT HVPS LOWER JC70-00386A 1
6 ELA UNIT-GUIDE PAPER T2 JC96-02797A 1
Service Manual
9-30
Samsung Electronics
Main Frame Assembly Parts List


7 ELA UNIT-DUMMY FUSER BASE JC96-02795A 1
8 ELA UNIT-ITB CAM JC96-02794A 1
9 ELA UNIT-FRAME BASE JC96-02881A 1
10 ELA UNIT-FRAME REAR JC96-02880A 1
11 ELA UNIT-FRAME FRONT JC96-02879A 1
12 PBA SUB-ERASER JC92-01450A 1
13 PBA SUB-EXIT SENSOR JC92-01454A 1
14 RING-CS 6044-000001 4
15 CABLE CLAMP 6502-000121 1
16 CBF HARNESS-DRIVER GND JB39-00065A 1
18 SPRING ETC-CLUTCH JB61-70922A 2
19 CBF HARNESS-BRUSH GND JC39-00114A 1
20 CBF HARNESS-MAIN OPC_OEM JC39-00272A 1
21 CBF HARNESS-MAIN FSR_ROLL JC39-00276A 1
22 CBF HARNESS-MAIN ERASER JC39-00277A 1
23 GROUND-FUSER FRAME JC63-00165A 1
24 SHEET-ERASER LAMP JC63-00247A 1
25 GEAR-GEAR FUSER DRV OUTER JC66-00334A 1
26 “GEAR-DP,IDLE” JC66-40911A 1
27 “GEAR-EXIT,IDLE(Z17)” JC66-40964A 2
28 IPR-GROUND PAPER GUIDE JC70-00446A 1
29 PMO-COVER FUSER BASE JC72-01141A 1
30 PMO-COVER HARNESS FUSER JC72-01145A 1
31 PMO-LSU SHUTTER COVER JC72-01171A 1
32 GROUND-FUSER FRAME JC63-00165A 1
Service Manual
9-31
Samsung Electronics
9.14 Front Frame Exploded View
11
14
37
10
12 24 33
2-1
4
2 2-2
2-3
7
25
39
37
23
26
31
9 27
4
8 29 6
3-5
5 3-1
38
30
3-7
36 34 22 35
3-4 3-6
3 3-2 20 15 28-2
28-5 28-1
3-3
28-6
17 16 28-4
22 28-9
18 28-8
28-7
19 28-3
21 28
1-4
13
1 1-2
1-1
1-3
Service Manual
9-32
Samsung Electronics
Front Frame Assembly Parts List


0 ELA UNIT-FRAME FRONT JC96-02879A 1
1 ELA UNIT-TONER SENSOR JC96-02796A 1
1-1 RING-CS 6044-000001 1
1-2 HOLDER-M-WASTE TONER SENSOR JC61-00813A 1
1-3 PMO-TONER DETACTER JC72-01189A 1
1-4 PBA SUB-WASTE SENSOR JC92-01452A 1
2 MEA UNIT-ITB LIFTER JC97-01812A 1
2-1 SPONGE-DUCT TONER ITB LIFT JC72-01282A 1
2-2 DUCT-TONER ITB LIFTER JC67-00043A 1
2-3 SPONGE-ITB DUCT JC72-01286A 1
3 MEA UNIT-ITB TONER HOUSING JC97-01813A 1
3-1 HOUSING-M-WASTE TONER ITB JC61-00814A 1
3-2 SPONGE-DUCT TONER OPC JC72-01294A 1
3-3 PMO-CAP SHUTTER ITB JC72-01222A 1
3-4 PMO-SHUTTER TRANSFER ITB JC72-01229A 1
3-5 SPONGE-ITB TANK DUST JC72-01287A 1
3-6 SPONGE-ITB TANK TONER JC72-01288A 1
3-7 SPONGE-CAP SHUTTER JC72-01292A 1
4 RING-CS 6044-000001 3
5 CBF HARNESS-WASTE_MOTOR JC39-00299A 1
6 PLATE-GUIDE T2 FRONT JC61-00709A 1
7 BRACKET-DUMMY LSU F JC61-00756A 1
8 MEA UNIT-TERMINAL S JC97-01771A 12
9 GROUND-HVPS LSU JC63-00166A 1
10 LINK-LOCK OPC F JC66-00562A 1
11 LEVER-ITB LOCK FRONT JC66-00666A 1
12 LABEL(R)-COLOR BAR JC68-01149A 1
13 CBF HARNESS-BUSH GND JC39-00114A 1
14 IPR-BRKT GUIDE HVPS R JC70-00385A 1
15 IPR-BRKT EXIT HINGE F JC70-00406A 1
16 IPR-ITB HINGE GROUND JC70-00419A 1
17 IPR-ITB GUIDE TORSION JC70-00420A 1
18 IPR-OPC GUIDE TORSION JC70-00421A 1
19 IPR-OPC/ITB GROUND JC70-00422A 1
20 IPR-OPC LOCK FRONT JC70-00423A 1
21 IPR-OPC/LSU GROUND JC70-00424A 1
22 IPR-SHUTTER TORTION JC70-00447A 1
23 PMO-FRAME FRONT JC72-01144A 1
Service Manual
9-33
Samsung Electronics
9-34
S8
25
15
S8
Service Manual
36*
31 18
8
S8
10
S8 S5
S8 33
1
32
1
34 S5
23 3 21
9 S5
S5
28
35
20
11
9.15 Rear Frame Exploded View
17
S8
26
S8 2
4 29
36* S8
S9
24 12 12 6
30 1
34 1
S8 14
22
1 13
12
36
19
7
37 16
38
Samsung Electronics
Rear Frame Assembly Parts List


0 ELA UNIT-FRAME BASE JC96-02793A 1
1 ELA UNIT-MP JC96-02774A 1
2 MEA-PICKUP JC97-01755A 1
3 CBF HARNESS-SCF JC39-00082A 1
4 CBF HARNESS-SMPS_INLET JC39-00280A 1
5 PLATE-GUIDE RAIL JC61-00710A 1
6 FOOT-ML80 JC61-40001A 2
7 GROUND-SCF JC63-00167A 1
8 COVER-SCREW LOCKING MP JC63-00175A 2
9 COVER-M-BASE BAR JC63-00207A 1
10 CAM-CATCH JC66-00050A 1
11 GEAR-PICK_UP JC66-00335A 1
12 IPR-BRKT BASE BAR JC70-00379A 1
13 IPR-CHANNEL FRAME BASE JC70-00390A 1
14 IPR-BRKT DEVE HINGE F JC70-00404A 1
15 IPR-BRKT DEVE HINGE R JC70-00405A 1
16 IPR-BRKT POWER JC70-00414A 1
17 PPR-SHEET/GUIDE PAPER JC72-00836A 1
18 PMO-FRAME BASE JC72-01156A 1
19 PMO-GUIDE SCT PAPER JC72-01161A 1
20 PMO-PAPER GUIDE JC72-01172A 1
21 PMO-BEARING SHAFT JC72-41191A 1
22 SOLENOID-PICK UP JC33-00007B 1
23 PBA SUB-TEMP JC92-01535A 1
24 WASHER-PLAIN 6031-001255 1
Service Manual
9-35
Samsung Electronics
9.16 Base Frame Exploded View
11
25 21
24
4 2
7
16
15
3
23
1
14
22
8
3
18
6
13
10
17
12
20
19
Service Manual
9-36
Samsung Electronics
MP Ass’y Assembly Parts List


0 ELA UNIT-MP JC96-02774A 1
1 RING-E 6044-000125 2
2 SOLENOID-MP JC33-00006B 1
3 SPRING ETC—CAM MP JC61-00003A 1
4 SPRING ETC-PICK UP MP JC61-00041A 1
5 “SPRING ETC-KNOCKUP,MP” JC61-00483A 1
6 IPR-BRACKET SOLENOIDE JC70-00237A 1
7 PMO-HOLDER CAM MPF JC72-00055A 1
8 PMO-ROLLER CAM.MP JC72-00761A 1
9 “PMO-ACTUATOR,MP” JC72-00767A 1
10 “PMO-ADJUSTER,MP” JC72-00768A 1
11 “PMO-CAM PICK UP,MP” JC72-00769A 1
12 “PMO-FRAME,MP” JC72-00770A 1
13 “PMO-HOLDER PAD,MP” JC72-00771A 1
14 “PMO-HOLDER SENSOR,MP” JC72-00772A 1
15 “PMO-HOUSING PICK UP,MP” JC72-00773A 1
16 “PMO-PLATE KNOCK UP,MP” JC72-00775A 1
17 PMO-IDLE PICK UP MP JC72-41027A 2
18 “PMO-BUSHING_P/U,MP” JC72-41364A 2
19 “RPR-RUBBER PICK UP,MP” JC73-00089A 1
20 PAD-MP(PLUS) JC69-00497A 1
21 RPR-PAD KNOCK UP MP JC73-10906A 1
22 PBA SUB-MP_EMPTY SENSOR JC92-01500A 1
23 PMO-GEAR P/U MPF JC72-00056A 1
Service Manual
9-37
Samsung Electronics
9.17 MP Ass’y Exploded View
20
13
4 1
17
23
15 7
3 S5
19
11 6
17 18
18
1 2
S9
8
10 15
14
12 21
22
16
Service Manual
9-38
Samsung Electronics
Pick-up Ass’y Assembly Parts List


0 MEA-PICKUP JC97-01755A 1
1 SPRING ETC-PICKUP JC61-00482A 1
2 IPR-GROUND FEED JC70-00359A 1
3 IPR-GUIDE INPUT JC70-00360A 1
4 PMO-CAP CONNECTOR L JC72-00463A 1
5 PMO-CAP CONNECTOR U JC72-00465A 1
6 PMO-ACTUATOR EMPTY JC72-00719A 1
7 PMO-SHAFT PICK UP JC72-00729A 1
8 PMO-GUIDE PAPER JC72-01076A 1
9 PBA SUB-P.EMPTY SENSOR JC92-01453A 1
10 PMO-BEARING SHAFT JC72-41191A 1
11 “PMO-BUSHING_P/U,MP” JC72-41364A 1
12 RUBBER-PICK UP JC73-00149A 2
Service Manual
9-39
Samsung Electronics
9.18 Pick-up Ass’y Exploded View
10
7 9
12
5
11
4 2
1
8
Service Manual
9-40
Samsung Electronics
Feeder Ass’y Assembly Parts List


0 MEA UNIT-FEED JC97-01171A 1
1 MEA-HOLDER PINCH C3 JC97-01768A 1
1-1 PMO-HOLDER PINCH C3 JC72-01107A 1
1-2 SPRING-ETC FEED MID 6107-001210 1
1-3 IPR-SHAFT FEED IDLER JC70-10230A 1
1-4 PMO-ROLLER FEED L JC72-40261A 1
2 MEA-HOLDER PINCH C5 JC97-01769A 1
2-1 PMO-HOLDER PINCH C5 JC72-01108A 1
2-2 SPRING ETC FEED MID A 6107-001211 1
3 MEA-HOLDER PINCH M JC97-01770A 1
3-1 PMO-HOLDER PINCH M JC61-00778A 1
3-2 SPRING ETC-FEED MP JC61-00481A 1
3-3 PMO-SUB HOLDER FEED JC72-40266A 1
3-4 PMO-ROLLER FEED S JC72-40262A 1
4 PMO-FRAME FEED JC72-01106A 1
5 RING-E 6044-000125 4
6 PMO-BUSHING FEED MID JC72-01105A 1
7 IPR-BRKT FEED MID JC70-00376A 1
8 WASHER-PLAIN 6031-000021 6
9 PMO-ROLLER FEED MID JC72-01113A 1
10 SHAFT-FEED MID JC66-00618A 1
11 PMO-BUSHING P/U.MP JC72-41364A 3
12 GROUND-PICKUP PLATE JC63-00182A 1
13 PMO-ROLLER FEED JC72-00727A 1
14 SHAFT-FEED JC66-00617A 1
15 GEAR-MP/DUP DRV JC66-00346A 1
16 PMO-PULLEY FEED L JC72-01110A 1
17 BELT-TIMING GEAR 6602-001176 1
18 GEAR-FEED JC66-00332A 1
19 PMO-PULLEY FEED S JC72-01111A 1
20 PMO-BRKT FEED JC72-01134A 1
21 PMO-PULLEY IDLE JC72-01112A 1
22 RING-CS 6044-000001 1
Service Manual
9-41
Samsung Electronics
9.19 Feeder Ass’y Exploded View
1 1-2
20
5
1-1 19
8
1-3 1-4
11
8
5
10
21
9 8
8 5
7
6 11
5
18
17
S8 12
16
S8
11
8 S8 4
14
3
13 2
5 3-4
3-5 3-6
2-2 3-3
2-1 22
2-4
2-3 15
3-1 3-2
Service Manual
9-42
Samsung Electronics
Guide Paper T2 Ass’y Assembly Parts List


1 PMO-DUMMY ITB CAM LOWER JC72-01154A 1
2 PBA SUB-PTL JC92-01451A 1
3 PMO-PTL PATH JC72-01187A 1
4 SHAFT-ITB CLEAN CAM JC66-00548A 1
5 CAM-ITB CLEANING JC66-00511A 1
6 BUSH-D6/L4 JC61-00699A 1
7 RING-E 6044-000125 1
8 PMO-DUMMY ITB CAM UPPER JC72-01155A 1
9 ELA HOU-SET DRAWER JC96-02829A 1
10 PMO-COVER CAM SHAFT JC72-01136A 1
11 GUIDE-PTL SPRING JC61-00717A 1
12 SPRING-PTL 6107-001203 1
13 RING-CS 6044-000001 1
S18 SCREW-SPECIAL 6009-001396 2
Service Manual
9-43
Samsung Electronics
9.20 Guide Paper T2 Ass’y Exploded View
3
1
2
5 6
S9
Guide Paper Assembly Parts List


0 ELA UNIT-GUIDE PAPER T2 JC96-02797A 1
1 PMO-COVER FEED SENSOR JC72-01139A 1
2 PBA SUB-FEED SENSOR JC92-01455A 1
3 PMO-ACTUATOR FEED SENSOR JC72-01135A 1
4 IPR-BRKT PAPER GUIDE JC70-00389A 1
5 SHEET-PAPER GUIDE JC63-00235A 2
6 PMO-GUIDE PAPER PATH JC72-01160A 1
Service Manual
9-44
Samsung Electronics
9.21 ITB Cam Ass’y Exploded View
S18
8
10
5
6
7 S8
2
12
13
11
S8
Service Manual
9-45
Samsung Electronics
ITB Cam Ass’y Assembly Parts List


1 PMO-DUMMY ITB CAM LOWER JC72-01154A 1
2 PBA SUB-PTL JC92-01451A 1
3 PMO-PTL PATH JC72-01187A 1
4 SHAFT-ITB CLEAN CAM JC66-00548A 1
5 CAM-ITB CLEANING JC66-00511A 1
6 BUSH-D6/L4 JC61-00699A 1
7 RING-E 6044-000125 1
8 PMO-DUMMY ITB CAM UPPER JC72-01155A 1
9 ELA HOU-SET DRAWER JC96-02829A 1
10 PMO-COVER CAM SHAFT JC72-01136A 1
11 GUIDE-PTL SPRING JC61-00717A 1
12 SPRING-PTL 6107-001203 1
13 RING-CS 6044-000001 1
S18 SCREW-SPECIAL 6009-001396 2
Service Manual
9-46
Samsung Electronics
9.22 Dummy Fuser Base Ass’y Exploded View
S8
2
3
4
S5
Dummy Fuser Base Ass’y Assembly Parts List


0 ELA UNIT-DUMMY FUSER BASE JC96-02795A 1
1 PMO-DUMMY FUSER BASE JC72-01142A 1
2 PMO-COVER FUSER AC JC72-01140A 1
3 IPR-TERMINAL FU JC70-10961A 2
4 CBF HARNESS-SMPS_AC WIRE JC39-00288A 1
Service Manual
9-47
Samsung Electronics
Pa n e l
16x2 LCD
5pin, UART
Samsung Electronics
32bit SDRAM 10
IEEE1284 32MB +
SPGPm 60MHz Option Memory
RS232C UART
EEPROM
10. Block Diagram
f or Debugg ing
32bit
Analog MUX
USB 2. 0 - TEMP.(2 EA)
LSU
- Fusing Temp.
- HVPS x 3
- CTD
- To ner(resistance) X 4
NPC - ITB & OPC key
16bit
- Waste Toner
Op tional
Full Func tion - Waste Agitator
Mot or
* Total : 15 input
LPEC1
8~ 16bit
Flas h Memory Color ASIC
HVPS
2MB 32bit PWM c on trol
Service Manual
B LOCK DIAG R A M
10-1
10-2
+5V, +3.3V, +24V, +24VF SMPS POWER
PC Video Controller CORD
Sts, Cmd, Clk, Rdy
SCF Optional
Service Manual
IEEE1284 PDO~PD7
HIC
B LOCK DIAG R A M
IEEE1284 Super1284 BLDC_OPC & ITB

F BLDC MAIN
Parallel Motor
nRD, NWR, Fan
nNPC_CS, nWait, Fuser T1
nNPC_INT PWM AC_Vpp,
T1, T2 Charge,
HVPS T2
NPC NPC Opt NPC D16~D31 Deve, AC
Optional Optional SPGPm SUPPLY
Board A3~A15 ENB T2, Deve
Full ARM946ES nRD, nWR, Supply
nEPLD_CS,
Embedded nRESET A_Read Cha, Seal Zener
T1, T2
USB 2.0 Bias
nVDO CHARGE
USB 2.0 USB En_CTD
AN_CTD
CTD Sensor
Flash Memory
AM29LV800 x 2 D0~D31 nVDO_LSU, nLDon, nSH, nHsync, nSart, nRDY, nClk
LSU
Main Clock 2MB A2~A21 A1~A9
nCut_Off
OSC OSC ASIC Fusible A_Cart
12.00 19.90 nS_New
Cartridge 4
SD0~SD31 74LVX 4245
MHz MHz SDRAM LPEC1 Joint y, c, m, k
K4S281632 x 2
Video Clock SA0~SA12
64MB Solenoid
Y,C,M,K
PANEL D0-D31
Developer Clutch
CS, SK Y,C,M,K
B’D EEPROM
D1, D0 Drive
93C66
UART 5pin
512bytes
DEPLD0-DEPLD31
7 LED SD0~SD31 SA0~SA12
7 KEY SDRAM DIMM Optional BLDC DEVE

32MB, 64MB, 128MB Motor
Samsung Electronics
Power(AC Input, 220V/110V)
Sensor(Temp.2) 38 CN6 CON1 Power Inlet & Switch
SMPS Switch1(Right Cover)
OPC 37
CN8 CN30 1 CON4 CON3 2 Switch2(Left Cover)
Eraser CN1 36
CN11
CON2 3
Samsung Electronics
PTL CN1 35 CN28 4
FUSER 11
CN12
LSU 34
CN14 5 Switch3(Left Cover) 8 DC Motor
DEVE CN2 (Waste Agitator)
ITB 33 CN10
OEM KEY
V1,2,3 9a Developer_1st
Sensor(Temp.) 32 CN15 Developer_2nd
V4,5,6 9b
Sensor(Waste toner) 31 CN17 CN7 6 CN1 (1, 2 ) CN2 7 CN1 V7,8,9 9c Developer_3rd
V10,11,12 9d Developer_4th
Solenoid(T2 hom e) 30 CN26
T1 H.V(T1) T1 Roller
Solenoid(Duplex) 29 CN24
HVPS T2 H.V(T2)
Engine & T2 Roller
28 CN32 Charger H.V(Charger)
Solenoid(MP) Video Charger Roller
11. Connection Diagram
Supply H.V(Deve Supply)

Solenoid(Pick up) 27 CN25 Controller *H.V : High Voltage
(MAIN B’D) BLDC
Clutch(Feed) 26 CN23
TAB1 CN1 1 11 CN1 Motor & Drive
Sensor(Exit) 25 CN19 (DEVE)
Deve
CN6 12a Solenoid(Deve 1st)
Sensor(Feed) 24 CN33 Drive
CN2 Solenoid(Deve 2nd)
12b
Sensor(MP_Empty) 23 CN31 CN7
12c Solenoid(Deve 3rd)
CN3 Solenoid(Deve 4th)
Sensor(Paper Empty) 22 CN21 12d
CN5 10 CN1
CN8 13a Clutch(Deve 1st)
SCF(Option) 21 CN16 CN4 13b Clutch(Deve 2nd)
15 CN9 13c Clutch(Deve 3rd)
CN29 FAN (FUSER)
NPC(Option) 20 CN9 CN5 13d Clutch(Deve 4th)
CN1 0 14 Solenoid(T1 Clean)
Panel CN2 19 CN4
V1 H.V(1st Deve Supply)
Developer_1st
V2 H.V(2nd Deve Supply)
USB 18 CN2 BLDC Developer_2nd
16 V3 H.V(3rd Deve Supply)
CN27 CN1 Motor & Drive Developer_3rd
(Main) V4 H.V(4th Deve Supply)
Service Manual
IEEE1284 17 CN3 Developer_4th
Connection Diagram
11-1
11-2
1 Main BD(CN30) SMPS(CON4) 2 SMPS(CON3) Switch 6 Main BD(CN7) HVPS(CN1-1)
Pin Sig nal Name Dir Pin Sig nal Name Pin Sig nal Name Dir Pin Sig nal Name Pin Sig nal Name Dir Pin Sig nal Name
1 +24VF 2 +24VF 1 +24V <- 2 +24VF 1 24V
Service Manual
2 +24VF 1 +24VF 2 NC <- 4 AGND 3 GND
3 +24VF 4 +24VF 3 +24VF <- 6 PWM_AC_VPP 5 AC_Vpp_PWM
CONNECTION DIAGRAM
4 +24VF 3 +24VF 8 PWM_T2 7 T2_PWM

5 AGND 6 GND 10 PWM_CHARGE 9 CHARGE_PWM
6 AGND 5 GND 12 ENB_DEVE_AC 11 DEV_REM_PWM
3 SMPS(CON2) Fuser Unit
7 AGND 8 GND 14 A_READ_T1 13 T1_READ
8 AGND 7 GND Pin Sig nal Name Dir Pin Sig nal Name 16 nWST_AGT 15 nWST_AGT
9 +24V 10 +24V 1 CON2 <- 18 A_CART_2ND 17 A_CART_2ND
10 +24V 9 +24V 2 NC <- 20 A_CART_4TH 19 A_CART_4TH
11 AGND 12 GND 3 5096-02C <- 22 nS_NEW_2ND 21 nS_New_2ND
12 AGND 11 GND 24 nS_NEW_4TH 23 nS_New_4TH
13 +3.3V 14 +3.3V 26 A_WST_AGT 25 A_WST_AGT
14 +3.3V 13 +3.3V 28 DGND 27 NC
15 +3.3V 16 +3.3V 4 Main BD(CN28) Fuser Unit >> Main BD(CN7) HVPS(CN1-2)
16 +3.3V 15 +3.3V
Pin Signal Name Dir Pin Signal Name 1 +24VF 2 24V
17 DGND 18 GND
3 AGND 4 GND
18 DGND 17 GND 1 AN_FUSER1_OUT <-
5 ENB_T2 6 T2_EN
19 DGND 20 GND 2 AN_FUSER1_OUT2 <-
7 PWM_AC 8 AC_PWM
20 DGND 19 GND
9 PWM_T1 10 T1_PWM
21 +5V 22 +5V
11 PWM_DEVE 12 DEVE_PWM
22 +5V 21 +5V
13 A_READ_CHA 14 CHARGE_READ
23 DGND 24 GND 5 Main BD(CN14) Switch(Left cover)
15 A_READ_T2 16 T2_READ
24 DGND 23 GND Pin Sig nal Name Dir Pin Sig nal Name 17 nCUT_OFF 18 nCUT_off
25 nFUSERON 26 <- 1 +5V <- 19 A_CART_1ST 20 A_CART_1ST
26 NC 25 NC 2 +5VL <- 21 A_CART_3RD 22 A_CART_3RD
23 nS_NEW_1ST 24 nS_New_1ST
25 nS_NEW_3RD 26 nS_New_3RD
27 +5V 28 NC
Samsung Electronics
7 HVPS(CN2) Dev e OEM Key (C N1) 9a Deve OEM Key Deve Cartridge(1st) 10 Main BD(CN5) Deve Drive(CN1)
Pin Signal Name Dir Pin Sig nal Name Pin Signal Name Dir Pin Signal Name Pin Signal Name Dir Pin Signal Name
1 24V 2 24V V1 NEW_CART_1ST <- 1 AGND 2 AGND
2 AGND 1 AGND V2 A_CART_1ST <- 2 +24VF 1 24V
3 nCUT_off 4 nCUT_OFF V3 AGND <- 3 AGND 4 AGND
Samsung Electronics
4 nWST_AGT 3 nWST_AGT 4 +24VF 3 24V
5 A_CART_1ST 6 A_CART_1ST 5 AGND 6 AGND
6 A_CART_2ND 5 A_CART_2ND 9 b Deve OEM Key Deve Cartridge(2nd) 6 +24VF 5 24V
7 A_CART_3RD 8 A_CART_3RD 7 DGND 8 DGND
Pin Signal Name Dir Pin Signal Name
8 A_CART_4TH 7 A_CART_4TH 8 +5V 7 5V
V4 NEW_CART_2ND <-
9 nS_New_1ST 10 nS_NEW_1ST 9 nSOL_DEVE_1ST 10 nSOL_DEVE_1ST
V5 A_CART_2ND <-
10 nS_New_2ND 9 nS_NEW_2ND 10 nSOL_DEVE_2ND 9 nSOL_DEVE_2ND
V6 AGND <-
11 nS_New_3RD 12 nS_NEW_3RD 11 nSOL_DEVE_3RD 12 nSOL_DEVE_3RD
12 nS_New_4TH 11 nS_NEW_4TH 12 nSOL_DEVE_4TH 11 nSOL_DEVE_4TH
13 A_WST_AGT 14 SENSE_AGT 13 nCLT_DEVE_1ST 14 nCLT_DEVE_1ST
9c Deve OEM Key Deve Cartridge(3rd)
14 NC 13 NC 14 nCLT_DEVE_2ND 13 nCLT_DEVE_2ND
Pin Signal Name Dir Pin Signal Name 15 nCLT_DEVE_3RD 16 nCLT_DEVE_3RD
V7 NEW_CART_3RD <- 16 nCLT_DEVE_4TH 15 nCLT_DEVE_4TH
8 Deve OEM Key(CN2) V8 A_CART_3RD <- 17 nBLDC_START2 18 START
DC Motor(Waste Agitator) V9 AGND <- 18 nBLDC_RDY2 17 READY
Pin Sig nal Name Dir Pin Sig nal Name 19 BLDC_CLK2 20 CLOCK
1 nWST_AGT <- 20 nSOL_ITB_CLN 19 nSOL_T1_CLN
2 NC <- 9 d Deve OEM Key Deve Cartridge(4th)
3 SENSE_AGT <- Pin Signal Name Dir Pin Signal Name
V10 NEW_CART_4TH <-
11 Dev e Drive BLDC Motor(Deve)
V11 A_CART_4TH <- Pin Sig nal Name Dir Pin Sig nal Name
V12 AGND <- 1 24V 1 +24V
2 24V 2 +24V
3 AGND 3 PGND
4 AGND 4 PGND
5 DGND 5 SGND
6 5V 6 +5V
7 START 7 START
8 READY 8 READY
9 CLOCK 9 CLOCK
Service Manual
10 CW/CCW
Connection Diagram
11-3
11-4
12a Deve Drive(CN6) Solenoid(Deve 1st) 13a Deve Drive(CN8) Clutch(Deve 1st) 14 Deve Drive(CN10) Solenoid(T1 clean)
Pin Signal Name Dir Pin Signal Name Pin Signal Name Dir Pin Signal Name Pin Signal Name Dir Pin Signal Name
1 nSOL_DEV_1ST <- 1 nCLT_DEV_1ST <- 1 nSOL_T1_CLN <-
Service Manual
2 NC <- 2 NC <- 2 NC <-
3 AGND <- 3 AGND <- 3 AGND <-
CONNECTION DIAGRAM
12b Deve Drive(CN2) Solenoid(Deve 2nd) 13b Deve Drive(CN4) Clutch(Deve 2nd) 15 Main BD(CN29) Fan Motor(Fuser)
1 nSOL_DEV_2ND <- 1 nCLT_DEV_2ND <- 1 nFAN_FUSER <-
2 NC <- 2 NC <- 2 NC <-
3 AGND <- 3 AGND <- 3 +24VF <-
12c Deve Drive(CN7) Solenoid(Deve 3rd) 13c Deve Drive(CN9) Clutch(Deve 3rd) 16 Main BD(CN27) BLDC Motor(Main)
Pin Signal Name Dir Pin Signal Name Pin Signal Name Dir Pin Signal Name
1 nSOL_DEV_3RD <- 1 nCLT_DEV_3RD <-
1 +24VF 1 +24V
2 NC <- 2 NC <-
2 +24VF 2 +24V
3 AGND <- 3 AGND <-
3 AGND 3 PGND
4 AGND 4 PGND
5 DGND 5 SGND
12d Deve Drive(CN3) Solenoid(Deve 4th) 13d Deve Drive(CN5) Clutch(Deve 4th)
6 +5V 6 +5V
Pin Signal Name Dir Pin Signal Name Pin Signal Name Dir Pin Signal Name 7 nBLDC_START1 7 START
1 nSOL_DEV_4TH <- 1 nCLT_DEV_4TH <- 8 nBLDC_RDY1 8 READY
2 NC <- 2 NC <- 9 BLDC_CLK1 9 CLOCK
3 AGND <- 3 AGND <- 10 DGND 10 CW/CCW
Samsung Electronics
17 Main BD(CN3) IEEE1284 Port 18 Main BD(CN2) USB Port
1 nSTB <- 19 DGND <- 1 VBUS_2270 VBUS
2 DATA0 <- 20 DGND <- 2 DN D-
Samsung Electronics
3 DATA1 <- 21 DGND <- 3 DP D+
4 DATA2 <- 22 DGND <- 4 DGND AGND
5 DATA3 <- 23 DGND <- 5 AGND FGND
6 DATA4 <- 24 DGND <- 6 AGND FGND
7 DATA5 <- 25 DGND <-
8 DATA6 <- 26 DGND <-
9 DATA7 <- 27 DGND <- 19 Main BD(CN4) Panel(CN2)
10 nACK <- 28 DGND <- Pin Signal Name Dir Pin Signal Name
11 BUSY <- 29 DGND <-
1 DGND 1 DGND
12 PERROR <- 30 DGND <-
2 +5V 2 VCC
13 SELECT <- 31 nINIT <-
3 PANEL_TX 3 OPE_RXD
14 nAUTOFD <- 32 nFAULT <-
4 nRST_PANEL 4 /OPE_RST
15 NC <- 33 NC <-
5 PANEL_RX 5 OPE_TXD
16 DGND <- 34 NC <-
17 AGND <- 35 NC <-
18 5V1 <- 36 nSELECTIN <-
Service Manual
Connection Diagram
11-5
11-6
20 Main BD(CN9) NPC(J1) 21 Main BD(CN16) SCF Unit(CN9)
(Network Print Card) (Secondary Cassette Feeder)
Service Manual
1 +3.3V 1 VDD3 31 DATA(18) 31 XPData(18) 1 +3.3V 1 3.3V
2 +3.3V 2 VDD3 32 A_ADDR(13) 32 XPAddr(11) 2 STS_SCF 2 SCF_STS
3 DGND 3 GND 33 DATA(17) 33 XPData(17) 3 CMD_SCF 3 SCF_CMD
CONNECTION DIAGRAM
4 nNPC_CS 4 nXPCS 34 A_ADDR(12) 34 XPAddr(10) 4 CLK_SCF 4 SCF_CLK

5 DATA(31) 5 XPData(31) 35 DATA(16) 35 XPData(16) 5 RDY_SCF 5 SCF_RDY
6 DATA(30) 6 XPData(30) 36 A_ADDR(11) 36 XPAddr(9) 6 +24V 6 24VS
7 DATA(29) 7 XPData(29) 37 A_ADDR(6) 37 XPAddr(4) 7 DGND 7 DGND
8 DGND 8 GND 38 A_ADDR(10) 38 XPAddr(8) 8 AGND 8 AGND
9 DATA(28) 9 XPData(28) 39 nNPC_RST 39 nRESET_P
10 DATA(27) 10 XPData(27) 40 A_ADDR(9) 40 XPAddr(7)
11 DATA(26) 11 XPData(26) 41 nWAIT 41 nXPWAIT
12 DGND 12 GND 42 A_ADDR(8) 42 XPAddr(6)
13 DATA(25) 13 XPData(25) 43 NC 43 NC
22 Main BD(CN21) Sensor(Paper Empty)
14 DATA(24) 14 XPData(24) 44 A_ADDR(7) 44 XPAddr(5) Pin Signal Name Dir Pin Signal Name
15 nNPC_INT 15 nXIRQ _OUT 45 NC 45 NC 1 +3.3V 1 <-
16 DGND 16 GND 46 NC 46 NC 2 nS_EMPT 2 <-
17 A_ADDR(5) 17 XPAddr(3) 47 NC 47 NC 3 DGND 3 <-
18 A_ADDR(4) 18 XPAddr(2) 48 DGND 48 GND 4 NC 4 <-
19 A_ADDR(3) 19 XPAddr(1) 49 NC 49 NC
20 +3.3V 20 VDD3 50 nRD 50 nXPRE
21 NC 21 NC 51 nWR 51 nXPWE 23 Main BD(CN31) Sensor(MP Em pty)
22 DATA(23) 22 XPData(23) 52 DGND 52 GND
23 DATA(22) 23 XPData(22) 53 NC 53 NC
1 +3.3V 1 <-
24 NC 24 NC 54 NC 54 NC
2 nS_MP_EMPT 2 <-
25 DATA(21) 25 XPData(21) 55 NC 55 NC
3 DGND 3 <-
26 NC 26 NC 56 DGND 56 GND
4 NC 4 <-
27 DATA(20) 27 XPData(20) 57 nPRT_IRQ 57 nXIRQ _IN
28 A_ADDR(15) 28 XPAddr(13) 58 DGND 58 GND
29 DATA(19) 29 XPData(19) 59 DGND 59 GND
30 A_ADDR(14) 30 XPAddr(12) 60 DGND 60 GND
Samsung Electronics
24 Main BD(CN33) Sensor(Feed) 29 Main BD(CN24) Solenoid(Duplex) 33 Main BD(CN10)
Pin Signal Name Dir Pin Signal Name Pin Signal Name Dir Pin Signal Name
ITB Unit (Drawer Connector on Frame)
1 +3.3V 1 <- 1 +24VF <- Pin Signal Name Dir Pin Signal Name
2 nS_FEED 2 <- 2 nSOL_DUP <- 1 +5VL J7 <-
Samsung Electronics
3 DGND 3 <- 2 nS_ITB_HOME J6 <-
3 DGND J5 <-
30 Main BD(CN26) Solenoid(T2 home) 4 A_ITB_HO ME J4 <-
25 Main BD(CN19) Sensor(Exit) 5 DGND J3 <-
6 nLED_ON J14 <-
Pin Signal Name Dir Pin Signal Name 1 +3.3V 1 <-
7 V_MON J13 <-
1 +3.3V 1 <- 2 NC 2 <-
8 GNDA J12 <-
2 nS_EXIT 2 <- 3 nSOL_T2 3 <-
9 +5VL J11 <-
3 DGND 3 <-
10 AN_CTD J10 <-
4 NC 4 <-
11 DGND J9 <-
31 Main BD(CN17) Sensor(Waste Toner)
12 nITB_CONFIRM J8 <-
>> CN1(TX) J1 NC
26 Main BD(CN23) Clutch(Feed) Pin Signal Name Dir Pin Signal Name J2 NC
Pin Signal Name Dir Pin Signal Name 1 +3.3V 1 <-
1 +24VF <- 2 DGND 2 <-
2 nCLT_FEED <- >> CN1(RX)
3 nS_TONER_RX 1 <-
4 DGND 2 <-
27 Main BD(CN25) Solenoid(Pick up) 5 NC

1 +24VF <-
32 Main BD(CN15) Sensor(Temperature)
2 nSOL_PICKUP <-
1 A_TEMP 1 <-
28 Main BD(CN32) Solenoid(MP) 2 GNDA 2 <-

1 +24VF <-
2 nSOL_MP <-
Service Manual
3 NC <-
Connection Diagram
11-7
11-8
34 Main BD(CN12) LSU 36 Main BD(CN8) ERASER(CN1)
>> LD Part Pin Sig nal Name Dir Pin Sig nal Name
Pin Sig nal Name Dir Pin Sig nal Name 1 +5VL 1 <-
Service Manual
1 nHSYNC 1 *HSYNC 2 EN_ERASER 2 <-
2 +5VL 2 +5V
3 DGND 3 GND * ( +5V → Resistance(150 Ohm) → CN11-1 )
CONNECTION DIAGRAM
4 nLDON_LSU 4 *LD ON
5 VDO_LSU+ 5 *VIDEO+
6 VDO_LSU- 6 *VIDEO-
7 nSH_LSU 7 *S/H 37 Main BD(CN6) OPC Unit
>> Motor Part
Pin Sig nal Name Dir Pin Sig nal Name
8 CLK_LSU 1 CLK
9 nRDY_LSU 2 *READY 1 A_OPC_KEY <-
2 DGND <-
10 nSTART_LSU 3 *START
11 AGND 4 GND
12 +24V 5 VCC
38 Main BD(CN13) Sensor (Temperatur e)

35 Main BD(CN11) PTL(CN1) Pin Sig nal Name Dir Pin Sig nal Name
Pin Sig nal Name Dir Pin Sig nal Name 1 A_TEMP 1 <-
1 +5V 1 <- 2 NC 2 <-
2 EN_ERASER 2 <- 3 GNDA 3 <-
Samsung Electronics

Samsung CLP 500 Series SVC Manual

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SAMSUNG COLOR LASER

SAMSUNG COLOR LASER PRINTER CONTENTS

* This service manual is also provided on the web,

1.1 Warning for safety.

(2) Do not rebuild it discretionary.

(3) Laser Safety Statement

CAUTION - INVISIBLE LASER RADIATION

1.2 Caution for safety

1.2.1 Precaution related noxious material

1.2.2 Precaution related electric shock or fire

1.2.3 Precaution related to handling the machine.

(1) Do not install unit on uneven surfaces or slanted floors.

1.2.4 Precautions for when assembly/disassembly

1.2.5 Disregarding this warnning may cause bodly injury.

(4) Do not install printer on an unstable place.

1.3 ESD Precautions

1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off

2.1 Tool for Troubleshooting

• DVM(Digital Volt Meter) • Cleaning Equipments

2.2 Acronyms and Abbreviations

ADC Analog-to-Digital-Conversion EPP Enhanced Parallel Port

AP Access Point F/W Firmware

AC Alternating Current FCF/FCT First Cassette Feeder/First

ASSY Assembly FPOT First Print out Time

BLDC Motor Brushless DC Motor GIF Graphic Interchange Format

CMOS Complementary Metal Oxide GND Ground

DPI Dot Per Inch IEEE Institute of Electrical and

LBP Laser Beam Printer RAM Random Access Memory

LCD Liquid Crystal Display ROM Read Only Memory

LED Light Emitting Diode SCF/SCT Second Cassette Feeder/Second

PCI Peripheral Component URL Uniform Resource Locator

PDL Page Description Language WECA Wireless Ethernet Compatibility

PPD Postscript Printer Discription

PPM Page Per Minute

PTL Pre-Transfer Lamp

PWM Pulse Width Moduration

2.3 Select a location for the printer

• Provide the proper environment :

100 mm <Rear Side>

2.4 Sample Tests Patterns

2.4.3 A4 IDC 5% Pattern

2.6 Wireless LAN

Division Basic type Recommend type

CPU Over PENTIUM 233M PENTIUM 300MHz

• About the certificated mark of Wi-FiTM

- Wi-FiTM is a registered trademark of the WECA (Wireless Ethernet

3.1 General Specifications

Developing system Non-Magnetic, Mono-Component Developing System

3.2 Controller Specification

* Memory Slots : Standard Capacity is 64MB

3.3 Electrical Specification

3.4 Environmental Range

3.5 Consumable & Maintenance Items

3.6 Paper handling Specifications

3.6.1 input Paper Size

Paper Paper size 1st Cassette 2nd Cassette MP tray Duplex

3.6.2 Input Capacity

3.6.3 Output Capacity

4.1 System Structure

4.1.1 Main Parts of System