B. Collecting The Firmware Logs (Fwdebug and Logs - Tar.gz) From The SE Menu

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B. Collecting the firmware logs (Fwdebug and logs.tar.gz) from the SE menu
Notes:
• Make sure that your printer is connected to a network or to a print server.
• Some printers are designed to restart automatically after a 9yy error. On these printers, you can retrieve
the secondary crash code information using the SE menu.
1 Open a web browser, type http://printer_IP_address/se, and then press Enter.
2 Click Logs Gzip Compressed.
Note: A logs.tar.gz file is saved to the Downloads folder. The file may take several minutes to save. You
may rename the file if a logs.tar.gz already exists in the Downloads folder.
3 E-mail the logs to your next level of support.
Note: To download the FWdebug log to a flash drive, see “General SE” on page 184.
C. Collecting the settings from the Menu Settings Page

Note: The Menu Settings Page is different for each printer. For more information, see the User’s Guide. Your
next level of support will tell you which page they want to see.
Copying the Menu Settings Page from the Embedded Web Server (EWS)
Note: Make sure that your printer is connected to a network or to a print server.
1 Open a web browser, type http://printer_IP_address, and then press Enter.
2 Click Settings, and then select one of the settings pages from the links shown on the page.
3 Copy all the information, and then save it as a text file.
4 E-mail the text file to your next level of support.
Printing the Menu Settings Page

1 From the home screen, navigate to:
Reports > Menu Settings Page
2 Print the Menu Settings Page, and then use Scan to E-mail to send it to your next level of support.
D. Collecting information from the user

Ask the user for information about the following:
• Print job being run
• Operating system being used
• Print driver being used
• Other information on what was happening when the 9yy error occurred
Diagnostics and troubleshooting

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900 errors
900 error messages

Error code Description Action
900.xx RIP firmware errors Go to “System software error service check” on
page 151.
System software error service check

There are different types of 900.xx errors that can occur. There may be a communication problem (bad
cable, network connection, and so on) software issue, or a hardware problem with the controller board, or
ISP (internal solutions port). The communication and software aspects should be checked first. Determine
if the problem is constant or intermittent. Use the troubleshooting procedure below to isolate the issue.
Take any notes as instructed. You will need that information in the event you need to contact your next level
of support.
Before troubleshooting:
1 Perform the “Procedure before starting the 9yy service checks” on page 149.
2 Determine the operating system used when the error occurred. If possible determine whether a
PostScript or PCL file was sent to the device when the error occurred. Ask the customer which Lexmark
Solutions applications are installed on the device.
Action Yes No
Step 1 Go to step 2. The problem is
POR the printer. solved.
Does the error remain?

Step 2 Go to step 3. Go to step 6.
a Write down the exact 900.xx error code displayed on the
device.
b Turn off the printer.
c Clear the print queues.
d Disconnect all communication cables, and remove all memory
options.
e Remove any installed ISP.
f POR the printer into the Diagnostics menu.
Does the error remain during startup?

Check all the cables connected to the controller board for proper
connectivity.
Are the cables properly connected?

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Action Yes No
a Properly connect the cables to the controller board.
b POR the printer into the Diagnostics menu.

a Replace the controller board. solved.
b POR the printer.

Note: If an error different from the original 900.xx is displayed,
consult the service check for that error.
Print the following:
• Error log
• Menu settings page
• Network settings page
Does the error remain while these pages were printing?

Note: Before performing this step, write down the following
information about the file being sent to the printer:
• Application used
• Operating system
• Driver type
• File type (PCL, PostScript, XPS, etc.)
a Reattach the communications cable.
b POR the printer.
c Send the printer a print job.

Step 8 Go to step 10.
a POR the printer. Go to step 9.
b Send a different print job to the printer.

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Action Yes No
a Upgrade the firmware.
Note: Contact your next level of support for the correct
firmware level to use.
b POR the printer.

Is the device an MFP?
Run a copy job.

Run a scan to PC job.

Is there optional memory installed?
a Reinstall the memory.
b Send a print job to the printer.

a Install a Lexmark recommended memory option. solved.
b Send a print job to the printer.

Is there a modem installed?
a Reinstall the modem. Go to step 18.
b POR the printer.

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Action Yes No
a Upgrade the firmware if it was not upgraded in a previous step. solved.
b POR the printer.

a Replace the modem. solved.
b POR the printer.

Run a fax job.

Is there an ISP option installed? solved.

a Reinstall the first ISP option.
b POR the printer.

Run a job to test the option.

a Upgrade the firmware if it was not upgraded in a previous step. solved.
b POR the printer.

a Replace the faulty ISP option. Go to step 31.
b POR the printer.

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Action Yes No
Are there any more ISP options to install? solved.

a Install the next ISP option.
b POR the printer.

Run a job to test the option.

a Upgrade the firmware if it was not upgraded in a previous step.
b POR the printer.

a Replace the faulty ISP option.
b POR the printer.

Step 31
Contact your next level of support. You will need the following information:
• Exact 900.xx error digits and complete error message
• Printed menu settings page
• Printed network settings page
• Device error log
• A sample print file if the error appears to be isolated to a single file
• File/Application used if the error is related to specific print file
• Device operating system
• Driver used (PCL/PS)
• Frequency of the occurrence of the error

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ADF/Scanner hardware errors

84y errors
840‑843 error messages

840.01 The scanner was manually disabled by the Admin See “Scanner disabled error service check” on
or user. page 156.
840.02 The scanner was automatically disabled by the
printer due to too many errors.
842.00 There was a scanner communication failure (No See “Flatbed scanner failure service check”
Response) error detected. on page 157.
842.01 There was a scanner communication failure (HW
protocol) error detected.
842.02 There was a scanner communication failure
(Logical protocol) error detected.
843.00 The flatbed scanner failed to reach its home
position.
843.01 A scanner mechanical failure was detected at the See “ADF scanner failure service check” on
ADF. page 157.
Scanner disabled error service check

Action Yes No
From the control panel, navigate to Settings > Maintenance > solved.
Configuration menu > Scanner Configuration.
Set Disable Scanner to Enabled.
Does the problem remain?

Step 2 Go to step 3. Contact the next
a Remove the right cover. See “Right cover removal” on level of support.
page 223.
b Check the ADF and scanner cables for damage.
Are the cables free of damage?

Step 3 Contact the next The problem is
Reseat the ADF and scanner cables from the controller board. level of support. solved.

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Flatbed scanner failure service check

Action Yes No
Restart the printer. solved.

page 223.
b Check the scanner cables for damage.

Step 3 The problem is
Reseat the scanner cables from the controller board. Contact the next solved.
level of support.
ADF scanner failure service check

Action Yes No
Restart the printer. solved.

page 223.
b Check the ADF cables for damage.

Step 3 Contact the next The problem is
Reseat the ADF cables from the controller board. level of support. solved.

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Other symptoms
Fax symptoms
Fax symptoms
Symptom Action
No dial tone. See “Modem/fax card service check” on
page 158.
The printer does not connect to a fax machine. The fax machine is turned off. Ask the fax recipient
to check the machine.
Incoming fax has blank spaces or poor quality. See “Blank spaces on incoming fax service
check” on page 159.
Incoming fax has stretched words. See “Stretched words on incoming fax service
check” on page 160.
The printer does not transmit faxes. See “Fax transmission service check” on
page 160.
The printer does not receive faxes. See “Fax reception service check” on page
162.
Modem/fax card service check

Action Yes No
Check if the telephone cable is properly connected to the modem
card and electrical outlet.
Is the cable properly connected to the modem card and electrical

outlet?
Connect the telephone cable to the modem card and electrical solved.
outlet.

Check if the telephone cable can make and receive calls.
Is the phone line properly working?

Connect the printer to a properly functioning telephone jack. solved.

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Action Yes No
Make sure that the modem cable is properly connected to the solved.
modem card and to the JFAX2 connector on the controller board.

Replace the fax card. solved.

Step 7 Contact the next Go to step 8.
Check the voltages values of the following pins on the JFAX2 level of support.
connector on the controller board:
• Pin 2: +3.3 V dc
• Pin 3: +3.3 V dc
• Pin 5: +5 V dc
• Pin 7: Ground
• Pin 9: Ground
• Pin 11: Ground
• Pin 13: Ground
Are the voltage values approximately the same?

Contact the next solved.
Replace the controller board. See “Controller board removal” on
level of support.
page 230.
Blank spaces on incoming fax service check

Actions Yes No
Receive fax from another machine. solved.

Attach the printer to a different telephone line. solved.

Print a test page. solved.

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Actions Yes No
Install a new toner cartridge. Contact the next solved.
level of support.
Stretched words on incoming fax service check

Actions Yes No
Receive fax from another machine. Contact the next The problem is
level of support. solved.
Fax transmission service check

Actions Yes No
Reseat the telephone cable on the LINE port of the printer and on solved.
the wall jack.

Check for a dial tone.
Is there a dial tone?

Check if the telephone line can send and receives calls.

Check if the telephone line is free of static or external noise.
Is the line free of static or external noise?

Connect the telephone cable to a working wall jack. solved.

a From the home screen, navigate to Settings > Fax > Analog Go to step 7. solved.
Fax Setup > Fax Receive Settings > Admin Controls > Enable
Fax Receive.
b Select On.

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Actions Yes No
a From the home screen, navigate to Settings > Fax > Analog solved.
Fax Setup > Fax Receive Settings > Admin Controls > Answer
on.
b Select a ring pattern.

Check if the telephone line is analog.
Is the line analog?

Check if the telephone line is a VOIP line.
Is the line VOIP?

Ask the system administrator to check if the VOIP server is level of support.
configured to receive faxes.
Is the server configured to receive faxes?

Check if the printer receives a fax from one specific remote device.
Does the printer receive a fax from one specific remote device?
Step 12 Contact the next Go to step 13.
Check if a different device can send a fax. level of support.
Can the device send a fax?

Fax Setup > Fax Receive Settings > Admin Controls > Block
No Name Fax.
b Select Off.

a From the home screen, navigate to Settings > Fax > Analog Go to step 15.
Fax Setup > Fax Receive Settings > Admin Controls > Banned
Fax List.
b Check if the remote device number is on the list.
Is the number on the list?

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Actions Yes No
Remove the remote device number from the list. solved.

a Enter the Service Engineer menu, and then navigate to: solved.
Fax SE > Modem Settings > Receive Thresh
b Adjust the setting in steps of 2 dB.
Note: The recommended adjustment range is between -33
dB and -48 dB.

a Enter the Service Engineer menu, and then navigate to: Contact the next solved.
level of support.
Fax SE > Fax Settings > AutoPrint T30 Logs
b Check the reported error code. See “Fax error log codes” on
page 164.
c Perform the action suggested for the error.
Fax reception service check

Note: Before performing this service check, make sure that the correct country code is selected.
Actions Yes No
Reseat the telephone cable on the LINE port of the printer and on solved.
the wall jack.

Check if the telephone line can send and receive calls.

Connect the telephone cable to a working wall jack. solved.

Check if the telephone line is analog.
Is the telephone line analog?

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Actions Yes No
Check if the telephone line is a VOIP line.
Is the line VOIP?

Ask the system administrator to verify if the VOIP server is level of support.
configured to receive faxes.
Is the server configured to receive faxes?

Check if the printer is on a PABX.
Is the printer on a PABX?

Fax Setup > Fax Send Settings > Behind a PABX.
b Select Yes.

a From the home screen, navigate to Settings > Fax > Analog
Fax Setup > Fax Send Settings > Behind a PABX.
b Select No.
c Check if access to an outside line needs a dial prefix.
Does access to an outside line need a dial prefix?

Send a fax using a dial prefix. solved.

Check if the printer sends a fax to one specific destination.
Does the printer send a fax to one specific destination?

Step 12 Contact the next
Check if the device that does not receive a fax can send a fax. Go to step 13. level of support.
Can the device send a fax?

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Actions Yes No
a Enter the Service Engineer menu, and then navigate to: solved.
Fax SE > Fax Settings > AutoPrint T30 Logs
b Check the reported error code. See “Fax error log codes” on
page 164.
c Perform the action suggested for the error.

a Enter the Service Engineer menu, and then navigate to: Contact the next solved.
level of support.
Fax SE > Modem Settings > Transmit Level
b Adjust the setting in steps of 1 dB.
Note: The recommended adjustment range is ±5 dB from the
default value.
Fax error log codes

000 No error occurred during a fax No action is needed.
transmission.
200 An error occurred when transmitting • Check the line quality.
training. • Select a lower Max Speed value
under the Fax Send settings.
• Adjust the transmit level.
3XX An error occurred when receiving an • Check the line quality.
image data. • Adjust the Receive Threshold.
• Select a lower Max Speed value
unde the r Fax Receive settings.
4XX An error occurred when sending an image • Check the line quality.
data. • Adjust the Transmit Level.
under the Fax Receive settings.
5XX An unknown response is received from a No action is needed. The issue is with
remote fax device. the other device.
6XX An error occurred when receiving a frame. • Check the line quality.
• Adjust the Receive Threshold.
7XX An error occurred when sending a frame. • Check the line quality.
• Adjust the Transmit Level.
under the Fax Send settings.

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800 An EOT was unexpectedly received from If the error persists, then disable the V34
the modem in V34 mode. modulation scheme.
802 Too many time‑outs occurred during ECM If the error persists, then disable the
reception. ECM mode.
803 Fax cancelled by the user. No action is needed.
804 Unexpectedly received a disconnect • Check the line quality.
command from the remote end. • Adjust the Transmit Level or Receive
Threshold setting.
• The remote device could be
requesting an unsupported feature.
805 The remote fax device failed to respond to • Adjust the Transmit Level or Receive
the DCS command. Threshold setting.
• The remote device could be
malfunctioning.
808 T1 timeout occurred when trying to Adjust the Transmit Level or Receive
establish a connection with a remote fax Threshold setting.
device.
809 T2 Timeout occurred due to loss of Adjust the Transmit Level or Receive
command/response synchronization. Threshold setting.
80A T5 Timeout occurred when transmitting • Check line quality.
image data to remote fax device. • Adjust the Transmit Level setting
• Decrease the Max Speed setting
under Fax Send settings.
80B Too many errors when transmitting in ECM • Check line quality.
mode. • Adjust the Transmit Level setting
• Select a lower ‘Max Speed’ value
under Fax Send settings.
80C Remote device failed to respond to the • Decrease the Max Speed setting
CTC command. under Fax Send settings.
• Adjust the Transmit Level setting
80D Received too many requests from remote • Check line quality.
end to repeat the previous command sent. • Adjust the Transmit Level setting
• Check if line conditions on remote
end will facilitate a good connection.
80E Functional limitation-Remote fax device No action needed. Issue with the remote
does not support G3 receive capability. device.
811 Failed to detect a fax device at the remote • Verify MFD is answering to fax call
end. and not a voice call.
• Decrease the Rings To Answer
setting.
812 No more data rates available in V34 Decrease the modulation scheme.
modulation scheme.

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813 Timeout occurred after waiting too long to Adjust the Receive Threshold setting.
receive a good frame.
814 Tried too many times at selected speed • Adjust the Transmit Level setting.
using V34 modulation scheme. • Decrease the modulation scheme.
815 Fax transmission was interrupted due to Troubleshoot MFP if error persists. See
power failure. “Modem/fax card service check” on
page 158.
818 Fax transmission failed due to insufficient Adjust the Memory Use setting to
memory to store scanned image. allocate more memory for send jobs.
819 Fax transmission failed due to insufficient Adjust the Memory Use setting to
memory to store received image. allocate more memory for receive jobs.
81A A timeout occurred during transmission of Decrease the Max Speed setting under
a page in ECM mode. Fax Send settings.
880 Failure to transmit training successfully in • Decrease the Max Speed setting
V17, V29, V27 terminal modulation under Fax Send settings.
schemes. • Adjust the Transmit Level setting.
• Check line quality.
V33, V29, V27 terminal modulation under Fax Send settings.
schemes. • Adjust the Transmit Level setting.
V17, V29 terminal modulation schemes. under Fax Send settings.
• Adjust the Transmit Level setting.
V17 terminal modulation scheme. under Fax Send settings.
886 • Decrease the Max Speed setting
Failure to transmit training successfully in under Fax Send settings.
V29 terminal modulation scheme.

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V27 terminal modulation scheme. under Fax Send settings.
888 Failure to transmit training successfully at • Adjust the Transmit Level setting.
2400 bps in V27 terminal modulation • Check line quality.
scheme.
889 Failed to connect at the minimum speed • Adjust the Transmit Level setting.
supported by the MFP. • Incompatible connection.
88A Failed to connect using V.34 modulation • Check line quality.
scheme. • Decrease the modulation scheme.
• Adjust the Transmit Level or Receive
Threshold settings.
901 No fax tones detected from remote end. • Verify destination phone number.
• Verify that the remote fax is
authorized to receive faxes.
902 No dial tone detected. • Check by enabling Behind a PABX
setting.
• Check phone line.
• Check MFD modem hardware.
903 Busy tone detected. Check with remote end if successive
attempts fail.
904 Hardware error detected. See “Modem/fax card service check”
on page 158.
905 A timeout occurred after dialing the Check with remote end if successive
number and waiting for a response. attempts fail.
906 Fax cancelled by user. No action needed.
907 Modem detected a digital line connection. Verify that the MFP is connected to an
analog line. See “Fax transmission
service check” on page 160.
908 Phone line was disconnected Restore phone line connection.
A00 Received request for unsupported No action needed.
function from remote fax device.
A01 Received request for unsupported image No action needed.
width from remote fax device.
resolution from remote fax device.
A03 Received request for unsupported No action needed.
compression type from remote fax device.
length from remote fax device.

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F00 Unknown error occurred. No action needed.

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Service menus
Understanding the printer control panel
Using the printer control panel

MX321, MB2338, and XM1238
Use the To
1 Display View printing options, printer status, and error messages.
2 Arrow buttons Scroll through the menus or move between screens and menu options.
3 Select button • Select menu options.
• Save the settings.
4 Redial button View the last number dialed.
5 Address book button View the stored addresses.
6 Numeric keypad Enter numbers or symbols in an input field.
7 Power button Turn on or turn off the printer.
Note: To turn off the printer, press and hold the power button for five seconds.
8 Stop or Cancel button Stop the current printer task.
9 Start button Start a printer task, depending on which mode is selected.
10 Pause button Place a dial pause in a fax number.
11 Backspace button Move the cursor backward and delete a character in an input field.
12 Fax button Send faxes.
13 Indicator light Check the printer status.
14 Back button Return to the previous screen.
15 Home button Go to the home screen.
Service menus
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MX421, MX521, MX522, MB2422, MB2546, XM1238, XM1242, and XM1246
Use the To
1 Display • View the printer messages and supply status.
• Set up and operate the printer.
2 Home button Go to the home screen.
3 Numeric keypad Enter numbers or symbols in an input field.
4 Power button Turn on or turn off the printer.
Note: To turn off the printer, press and hold the power button for five seconds.
5 Clear all or Reset button Reset the default settings of a function such as copying, faxing, or scanning.
6 Stop or Cancel button Stop the current printer task.
7 Start button Start a printer task, depending on which mode is selected.
8 Pause button Place a dial pause in a fax number.
9 Backspace button Move the cursor backward and delete a character in an input field.
10 Indicator light Check the printer status.
11 Volume buttons Adjust the speaker volume.
Understanding the status of the power button and indicator light

Indicator light Printer status
Off The printer is off or in Hibernate mode.
Blue The printer is ready or processing data.
Red The printer requires user intervention.
Power button light Printer status

Off The printer is off, ready, or processing data.
Solid amber The printer is in sleep mode.
Blinking amber The printer is in hibernate mode.
Service menus
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Using the home screen

Note: Your home screen may vary depending on your home screen customization settings, administrative
setup, and active embedded solutions.
Touch To
1 Status/Supplies • Show a warning or error message whenever the printer requires intervention to
continue processing.
• View more information on the printer warning or message, and on how to clear it.
Note: You can also access this setting by touching the top section of the home
screen.
2 Job Queue Show all the current print jobs.
Note: You can also access this setting by touching the top section of the home
screen.
3 Change Language Change the language on the display.
4 Settings Access the printer menus.
5 Eco‑Settings Manage energy consumption, noise, toner, and paper usage settings.
6 Held Jobs Show the print jobs that are held in the printer memory.
7 USB Drive Print photos and documents from a flash drive.
8 Address Book Manage a contact list that other applications on the printer can access.
Service menus
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Diagnostics menu
Entering the Diagnostics menu

The Diagnostics menu contains tests that are used to help isolate issues with the printer. To access some of
these tests, avoid POST tests that run at POR. Some POST tests can generate errors that prevent a diagnostic
test from running.
To access the Diagnostics menu from the home screen, press * * 3 6 on the control panel.
For 2‑line control panels, press the left arrow button twice, press OK, and then press the right arrow button.
Reports
Device Settings
This report lists all the current printer settings.
Enter the Diagnostics menu, and then navigate to:
Reports > Device > Device Settings
For non-touch-screen printer models, press to navigate through the settings.
Installed Licenses
This setting lists all the installed licenses and their feature data.
Reports > Licenses > Installed Licenses
Advanced Print Quality Samples

This setting prints a list of the printer settings and sample pages to check print quality.
Advanced Print Quality Samples > Advanced Print Quality Test Pages
Service menus
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Format Fax Storage

This setting deletes stored fax jobs.
1 Enter the Diagnostics menu, and then navigate to:
Format Fax Storage > Format Fax Storage
2 Press or touch Start.
Event log
Display Log
This setting displays the panel text that appears when the event occurs.
Event Log > Display Log
Print Log
This setting lists an extended version of the various printer events.
Event Log > Print Log
2 Touch Start.
Note: The events that appear in the report vary depending on the operational history of the printer.
Print Log Summary

This setting lists a brief summary of the various printer events.
Event Log > Print Log Summary
2 Touch Start.
Note: The events that appear in the report vary depending on the operational history of the printer.
Mark Log
This setting allows you to create a service, maintenance, or custom log entry. Each log entry is added in the
printer event log.
Event Log > Mark Log
2 Select a log that you want to create, and then touch Start.
Service menus
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Input tray quick print

This setting lets you print a single or continuous Quick Test page in either duplex or simplex mode.
1 Enter the Diagnostics menu, and then touch Input tray quick print.
2 Select where you want to print the pages from.
3 Select whether to print a single or continuous test page, and then touch Start.
Output bin quick feed

This setting allows you to send a single or continuous test page to a bin.

1 Enter the Diagnostics menu, and then touch Output bin quick feed.
2 Select where you want to send the test page.
3 Select whether to send a single or continuous test page, and then touch Start.
Printer Setup
Printed page count (mono)

This setting displays the amount of pages printed in mono.
1 Enter the Diagnostics menu, and then touch Printer Setup.
2 View the printed page count for mono.
Permanent page count

This setting displays the total number of pages printed in mono and color. After all the print tests are completed,
this value resets to zero.
2 View the permanent page count.
Enable edge-to-edge (printing)

This setting shifts all four margins to the physical edges of the page.
Note: Contamination of the second transfer roller may result from printing up to the physical edges of the
page.
Printer Setup > Enable edge‑to‑edge (printing)
2 Select a setting to adjust.
Note: This feature does not work in PPDS emulation.
Service menus
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Enable edge-to-edge (copy)

This setting determines whether the printer accepts the ADF or flatbed edge erase value when performing an
ADF or flatbed copy.
Printer Setup > Enable edge‑to‑edge (copy)
Processor ID
This setting indicates the ID of the processor on the controller board.
2 View the processor ID.
Serial number
This setting displays a read-only value of the serial number.
2 View the serial number.
Model name
This setting displays the model name of the printer.
2 View the model name.
Engine setting [x]

Warning—Potential Damage: Do not change this setting without specific instructions from the next level of
support.
This setting allows you to select a printer engine setting. Possible values are 0–255. 0 is the default.
Printer Setup > Engine setting [x]
2 Select a setting, enter a value, and then touch OK.
EP setup
Warning—Potential Damage: Do not change this setting without specific instructions from the next level of
support.
Service menus
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This setting allows you to adjust the EP setup of the printer.

Printer Setup > EP setup
2 Select a setting.
Printer diagnostics and adjustments
Sensor tests
1 Enter the Diagnostics menu, and then touch Printer diagnostics & adjustments.
2 From the Sensor tests section, touch Start.
A dialog listing the sensor tests appears.
3 Find, and then manually toggle the sensor.
Notes:
• The sensor status on the screen toggles between 1 and 0 when the sensor is properly working.
• If a sensor test fails, the test failure may not indicate a failed sensor. Further troubleshooting may be
required. Check the boards and cables for possible issues.
Motor tests
Printer diagnostics & adjustments > Motor tests
2 Select a motor, and then touch Start.
Notes:
• If the motor is activated, then it is properly working.
• Some motors require automatic deactivation in order to avoid secondary issues such as possible
damage and contamination.
• Some tests require a special action to activate a motor such as removing a major component.
• If the motor fails, the test failure may not indicate a failed motor. Further troubleshooting may be
Registration adjust
This setting lets you adjust the skew, margins, or perform a Quick Test.
Printer diagnostics & adjustments > Registration adjust
Service menus
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Memory tests
This setting lets you test or flash the printer memory or test or format the printer hard disk.
Printer diagnostics & adjustments > Memory tests
2 Select a setting.
Add-on cards tests

This setting allows you to test the add-on cards installed on the printer.
Printer diagnostics & adjustments > Add‑on cards tests
2 Select a card.
Universal Override
This setting allows the user to feed custom media sizes to a Custom Media Tray.

Printer diagnostics & adjustments > Universal Override
Scanner diagnostics
Feed Test
This test allows for a continuous feed from the ADF or flatbed.
Scanner diagnostics > Feed Test
2 Select a paper size.
3 From the Feed Test section, touch Start.
Sensor tests
This test verifies the status of the scanner sensors.
1 Enter the Diagnostics menu, and then touch Scanner diagnostics.
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Notes:
List of sensor tests

Test Procedure to perform before the test
FB CCD home ‑‑
ADF closed Open the ADF.
ADF media present Open the ADF top cover.
ADF pick
ADF deskew
ADF 1st scan
ADF 2nd scan ‑‑
ADF top door interlock Open the ADF top cover.
ADF calibration strip home ‑‑
Motor tests
1 Enter the Diagnostics menu, and then select navigate to:
Scanner diagnostics > Motor tests
2 Select a motor, and then touch Start.
Notes:
• To stop a running motor in non-touch-screen printer models, press .
List of motor tests

Test Procedure to perform before the test What to check if the motor is properly working
FB Scanner Open the top cover. The CCD moves to the selected paper size.
Run ADF transport Open the ADF top cover. The ADF transport roller turns.
Forward
Stop ADF transport The ADF transport roller stops turning.
ADF pick The ADF pick roller turns.
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Scanner Calibration Reset

Before starting the test, make sure that the scanner glass and backing material are clean. For more information,
go to “Cleaning the scanner” on page 317.
1 Enter the Diagnostics menu, and then touch Scanner diagnostics.
2 From the Sensor Calibration Test section, touch Start.
To verify the result, do the following:
1 Load the ADF with a document containing light and dark content.
2 Print a two-sided copy of the document.
Notes:
• If the back side of the copy has vertical streaks, then clean the scanner glass and backing material,
and then print another copy.
• If the streaks still appear, then repeat the cleaning and verification procedure or replace the ADF.
Controller Calibration
This test must be done when the scanner controller or flatbed scanner is changed.
For non‑touch‑screen printer models, press to navigate through the settings.

Scanner Diagnostics > Controller Calibration
2 Press or touch Start.
Additional input tray diagnostics
Sensor tests
1 Enter the Diagnostics menu, and then touch Additional input tray diagnostics.
Notes:
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Motor tests

Additional input tray diagnostics > Motor tests
2 Select a motor, and then press or touch Start.

Notes:
Configuration Menu
Menu item Description
USB Configuration Change the USB driver mode of the printer to improve its
USB PnP compatibility with a personal computer.
1*
2
USB Configuration Set whether the USB device driver enumerates as a USB
USB Scan to Local Simple device (single interface) or as a USB Composite device
On* (multiple interfaces).
Off
USB Configuration Set the USB port to run at full speed and disable its high‑speed
USB Speed capabilities.
Full
Auto*
Tray Configuration Set the printer to link the trays that have the same paper type
Tray Linking and paper size settings.
Automatic*
Off
Tray Configuration Show the Tray Insert message.
Show Tray Insert Message
Off
Only for unknown sizes*
Always
Note: An asterisk (*) next to a value indicates the factory default setting.
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Tray Configuration Specify the page orientation when loading A5‑size paper.
A5 Loading
Short Edge*
Long Edge
Tray Configuration Set the paper source that the user fills when a prompt to load
Paper Prompts paper or envelope appears.
Auto* Note: For Multipurpose Feeder to appear, set Configure MP
Multipurpose Feeder to Cassette from the Paper menu.
Manual Paper
Envelope Prompts
Auto*
Multipurpose Feeder
Manual Envelope
Tray Configuration Set the printer to resolve paper- or envelope-related change
Action for Prompts prompts.
Prompt user*
Continue
Use current
Reports Print reports about printer menu settings, status, and event
Menu Settings Page logs.
Event Log
Event Log Summary
Supply Usage And Counters Reset the supply page counter or view the total printed pages.
Clear Supply Usage History
Reset Black Cartridge Counter
Reset Black Imaging Unit Counter
Reset Maintenance Counter
Printer Emulations Set the printer to recognize and use the PPDS data stream.
PPDS Emulation
Off*
On
Fax Configuration Set the fax chip to enter low‑power mode whenever the printer
Fax Low Power Support determines that it should.
Disable Sleep
Permit Sleep
Auto*
Print Configuration Set a text point-size value below which the high‑frequency
Font Sharpening screens are used when printing font data.
0–150(24*) For example, if the value is 24, then all fonts sized 24 points or
less use the high‑frequency screens.
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Print Configuration Adjust the toner density when printing or copying documents.
Print Density
1–5 (3*) Copy
Density
1–5 (3*)
Device Operations Set the printer to operate in Quiet Mode.
Quiet Mode
Off*
On
Device Operations Enable access to the control panel menus.
Panel Menus
Enable*
Disable
Device Operations Set the printer to operate in a special mode, in which it attempts
Safe Mode to continue offering as much functionality as possible, despite
Off* known issues.
On For example, when set to On and the duplex motor is
nonfunctional, the printer performs one‑sided printing for a
two‑sided print job.
Device Operations Set the memory allocation for storing copy jobs.
Minimum Copy Memory Note: The values appear only if the amount of installed
20MB* DRAM is at least twice the amount of the value.
30MB
50MB
80MB
100MB
Device Operations Erase user‑defined strings for the Default or Alternate custom
Clear Custom Status messages.
Device Operations Erase messages that were remotely installed.

Clear all remotely‑installed messages
Device Operations Show existing error messages on the display after the printer
Automatically Display Error Screens remains inactive on the home screen for a length of time equal
On* to the Screen Timeout setting.
Off
Device Operations Enable the printer to use the Orientation setting under the
Honor orientation on fast path copy Copy menu when sending quick copy jobs.
Off*
On
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Scanner Configuration Manually register the flatbed and ADF after replacing the ADF,
Scanner Manual Registration scanner glass, or controller board.
Front ADF Registration
Rear ADF Registration
Flatbed Registration
Scanner Configuration Set the size, in millimeters, of the no‑print area around an ADF
Edge Erase or flatbed scan job.
ADF Edge Erase
0–6 (3*)
Flatbed Edge Erase
0–6 (3*)
Scanner Configuration Disable the scanner if it is not working properly.
Disable Scanner
Enabled*
Disabled
ADF Disabled
Scanner Configuration Print a test page that shows the scanner margin settings.
Scanner Manual Registration
Print Quick Test
Scanner Configuration Determine the byte order of a TIFF‑formatted scan output.
Tiff Byte Order
CPU Endianness*
Little Endian
Big Endian
Scanner Configuration Set the RowsPerStrip tag value of a TIFF‑formatted scan output.
Exact Tiff Rows Per Strip
On*
Off
Service Engineer menu
Entering Invalid engine mode

This mode allows the printer to load the correct firmware code.
1 Turn off the printer.
2 From the control panel, press and hold the 3, 4, and 6 while turning on the printer.
3 Release the buttons after 10 seconds.
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Entering the Service Engineer (SE) menu

To access the Service Engineer (SE) menu:
1 Turn on the printer.
2 When the home screen appears, press * * 411 on the control panel.
For 2‑line control panels, press the right arrow button twice, press OK, and then press the left arrow button.
General SE
This setting allows you to save a log file to a USB drive.
Enter the Service Engineer (SE) menu, and then navigate to:
General SE > Capture Logs to USB Drive
Network SE
Enter the Service Engineer (SE) menu, and then touch Network SE.
Note: Use these settings as directed by the next level of support.
Top level menu Intermediate menu

Print SE Menus Print SE Menus
History • Print History
• Mark History
MAC • Set Card Speed
• LAA
• Keep Alive
NPAP Print Alerts
TCP/IP • netstat
• arp
• Allow SNMP Set
• MTU
• Meditech Mode
• RAW LPR Mode
Wireless Enable Wi‑Fi Direct Sigma Control Agent
Ping Test • Ping
• Ping6
Other Actions • ifconfig
• IPtables [Firewall Dump]
• IP6tables [Firewall Dump]
• IPsec Dump
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Parts removal
Removal precautions
CAUTION—SHOCK HAZARD: This product uses a soft power switch. It does not physically disconnect
the input AC voltage. To avoid the risk of electrical shock, always remove the power cord from the
printer when removal of the input AC voltage is required.
CAUTION—SHOCK HAZARD: To avoid the risk of electrical shock and to prevent damage to the printer,
remove the power cord from the electrical outlet and disconnect all connections to any external devices
before you connect or disconnect any cable, electronic board, or assembly.
CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a hot
component, allow the surface to cool before touching it.
CAUTION—PINCH HAZARD: To avoid the risk of a pinch injury, use caution in areas marked with this
label. Pinch injuries may occur around moving parts, such as gears, doors, trays, and covers.
Data security notice

Identifying printer memory
• Volatile memory—The printer uses standard random access memory (RAM) to buffer user data temporarily
during simple print and copy jobs.
• Nonvolatile memory—The printer may use two forms of nonvolatile memory: EEPROM and NAND (flash
memory). Both types are used to store the operating system, printer settings, network information, scanner
and bookmark settings, and embedded solutions.
• Hard disk memory—Some printers have a hard disk drive installed. The hard disk is designed for printer-
specific functionality and cannot be used for long‑term storage of data that is not print-related. The hard
disk does not let users extract information, create folders, create disk or network file shares, or transfer FTP
information directly from a client device. The hard disk can retain buffered user data from complex print
jobs, form data, and font data.
The following parts can store memory:
• Printer control panel
• User interface controller card (UICC)
• Controller board
• Optional hard disks
Note: The printer control panel and controller board contain NVRAM.
Erasing printer memory

To erase volatile memory, turn off the printer.
To erase nonvolatile memory, do the following:
1 From the home screen, navigate to Settings > Device > Maintenance > Out of Service Erase > Sanitize all
information on nonvolatile memory.
2 Select Sanitize all information on nonvolatile memory, and then select ERASE.
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3 Follow the instructions on the screen.

To erase hard disk memory, do the following:
1 From the home screen, navigate to Settings > Device > Maintenance > Out of Service Erase > Sanitize all
information on hard disk.
2 Select Sanitize all information on hard disk, and then select ERASE.
3 Follow the instructions on the screen.
Note: This process can take from several minutes to more than an hour, making the printer unavailable for
other tasks.
If a hard disk is replaced, then do the following:
1 Remove the hard disk, and then return it to the customer.
2 Request the customer to sign the Customer Retention form.
Note: You can get printed copies of the form from your Lexmark partner manager.
3 Take a photo of the signed form, and then upload it to the Service Request debrief tool.
4 Fax or e-mail the signed form to the number or e-mail address shown at the bottom of the form.
Handling ESD‑sensitive parts

Many electronic products use parts that are known to be sensitive to electrostatic discharge (ESD). To prevent
damage to ESD-sensitive parts, do the following:
• Turn off the printer before removing logic boards.
• Keep the parts in their original packing material until you are ready to install them into the printer.
• Make the least-possible movements with your body to prevent an increase of static electricity from clothing
fibers, carpets, and furniture.
• Put the ESD wrist strap on your wrist. Connect the wrist band to the system ground point. This action
discharges any static electricity in your body to the printer.
• Hold the parts by their edge connector shroud. Do not touch its pins. If you are removing a pluggable module,
then use the correct tool.
• If possible, keep all parts in a grounded metal cabinet.
• Do not place the parts on the printer cover or on a metal table. If you need to put down the parts, then put
them into their packing material.
• Prevent parts from being accidentally touched by other personnel. Cover the printer when you are not
working on it.
• Be careful while working with the parts when cold-weather heating is used. Low humidity increases static
electricity.
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Controller board/control panel replacement

Note: Perform this procedure only if both the controller board and the control panel fail.
CAUTION—POTENTIAL INJURY: The lithium battery in this product is not intended to be replaced.
There is a danger of explosion if a lithium battery is incorrectly replaced. Do not recharge, disassemble,
or incinerate a lithium battery. Discard used lithium batteries according to the manufacturer's instructions
and local regulations.
Warning—Potential Damage: When replacing both the controller board and control panel, replace the parts
in the following order to avoid damaging the printer.
1 Replace the controller board first, and then start the printer into diagnostics mode.
Note: Do not replace the control panel and controller board at the same time.
2 Turn off the printer, replace the control panel, and then start the printer into Diagnostics mode.
Allow the printer to go through a complete start‑up cycle.
3 If the problem persists, then leave the new control panel and reinstall the old controller board.
4 Restart the printer and allow it to go through a complete start‑up cycle.
5 After the start‑up, turn off the printer, and then install the new controller board.
6 Restart the printer and allow it to go through a complete start‑up cycle.
If the procedure is successful, then there is no need to adjust any settings.
If the procedure fails, then contact technical support for assistance.
Restoring the printer configuration after replacing the controller board

Restore the printer to its correct configuration to complete the replacement service. Use the Service Restore
Tool to download the software bundle, and then flash the printer settings and embedded solutions.
Note: The software bundle contains the latest version of the firmware, applications, and software licenses
from the Lexmark Virtual Solutions Center (VSC). The printer firmware may be at a different level from what
was used before replacing the controller board.
Using the Service Restore Tool

1 Go to https://cdp.lexmark.com/service-restore-tool/ to access the tool.
2 Log in using your Lexmark or partner login.
If your login fails, then contact your next level of support.
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3 Enter the printer serial number, and then submit the information.
Note: Make sure that the serial number that appears on the verification screen is correct.
4 Save the zip file.

Note: Make sure that the serial number in the zip file matches the serial number of the printer being
restored.
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5 Extract the contents of the zip file, open the Readme file, and then follow the instructions in the file.
Notes:
• Perform the install instructions on the Readme file in the exact order shown. Only restart the printer
when instructed to in the file.
• For more information on how to flash the downloaded files, see “Updating the printer firmware ” on
page 191.
• To load the zip files that are extracted from the Service Restore Tool, see “Restoring solutions,
licenses, and configuration settings” on page 190.
6 After performing the installation instructions in the Readme file, confirm from the customer if all the eSF
apps have been installed.
Notes:
• If you are unable to access the administrative menus to verify that the printer is restored, then ask the
customer for access rights.
• If a 10.00 error appears after you restart the printer, then contact the next level of support.
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Restoring solutions, licenses, and configuration settings

To load the zip files that are extracted from the Service Restore Tool, do the following:
1 Open a web browser, and then type the printer IP address.
2 Click Import Configuration, and then click Browse.
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3 Navigate to the folder where the zip files are extracted from the Service Restore Tool.
4 Select the file to import, and then click Import.

5 Repeat step 2 through to step 4 for the other files that are included in the extracted zip file.
Updating the printer firmware

Warning—Potential Damage: Before updating the printer firmware, ask the next level of support for the
correct code. Using an incorrect code level may damage the printer.
The printer must be in ready state in order to update the firmware.
Using a flash drive

This option is available only in printer models with front USB port.
Make sure to enable the Enable Drive and Update Code settings. You can find the settings in the Flash drive
menu under the Settings menu.
1 Insert the flash drive into the USB port.
2 From the home screen, navigate to USB Menu: Print from USB > Accept or OK.
3 Select the file that you need to flash.
Note: Do not turn off the printer while the update is going on.
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Using a network computer

Using the File Transfer Protocol (FTP)
Make sure that the printer is in ready state before flashing the printer.
1 Turn on the printer.
2 Obtain the IP address:
• From the home screen
• From the TCP/IP section of the Network/Ports menu
3 From the command prompt of a network computer, open an FTP session to the printer IP address.
4 Use a PUT command to place the firmware file on the printer.
The printer performs a POR sequence and terminates the FTP session.
5 Repeat steps 2 through 4 for the other files.
Using the Embedded Web Server

Make sure that the printer is in ready state before flashing the printer.
1 Open a Web browser, and then type the printer IP address.
2 From the home page, navigate to Configuration > Update Firmware.
3 Select the file to use.
The printer performs a POR sequence and terminates the FTP session.
4 Repeat steps 2 through 4 for the other files.
Backing up eSF solutions and settings

Note: Export the eSF solutions and settings from the printer before replacing the controller board.
Exporting eSF solutions and settings file

1 Reset the printer into Invalid engine mode. See “Entering Invalid engine mode” on page 183.
Note: If the Web page cannot be accessed or an error occurs when starting the printer into Invalid engine
mode, then data backup is not an option. Inform the customer that the data cannot be saved.
3 Navigate to Settings > Solutions > Embedded Solutions.
4 From the Embedded Solutions page, select the applications that you want to export.
5 Click Export.
Note: The size limit of the export file is 128 KB.
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Importing eSF solutions and settings file

After replacing the controller board, import back to the printer the eSF solutions and settings that were exported.
1 Reset the printer into Invalid engine mode. See “Entering Invalid engine mode” on page 183.
Note: If the Web page cannot be accessed or an error occurs when starting the printer into Invalid engine
mode, then data backup is not an option. Inform the customer that the data cannot be saved.
3 Navigate to Settings > Solutions > Embedded Solutions.
4 From the Embedded Solutions page, select the applications that you want to import.
5 Click Import.
Disconnecting ribbon cables

Warning—Potential Damage: The ribbon cable and its socket may get damaged if it is not properly
disconnected. When disconnecting the cable, hold its connector and press its tab before unplugging it.
Ribbon cable connectors
Zero Insertion Force (ZIF) connectors

Zero Insertion Force (ZIF) connectors are used on the boards and cards used in this printer. Before inserting or
removing a cable from these connectors, read this entire section. Great care must be taken to avoid damaging
the connector or cable when inserting or removing the cable.
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Warning—Potential Damage: Do not insert the cable so that the contacts are facing the locking actuator.
The contacts always face away from the actuator.
Warning—Potential Damage: Do not insert the cable diagonally into the ZIF socket. This can cause damage
to the contacts on the cable.
Warning—Potential Damage: Avoid using a fingernail, or sharp object to open the locking mechanism. This
could damage the cable.
Warning—Potential Damage: Avoid pressing against the cable when opening the locking mechanism. This
can also damage the cable.
These are the types of ZIF connectors used in this printer:
• Horizontal top contact connector
• Horizontal bottom contact connector
• Vertical mount contact connector
• Horizontal sliding connector
Horizontal top contact connector

This FRU contains a horizontal top contact cable connector. Read the instructions before proceeding.
The horizontal top contact connector uses a back flip locking actuator to lock the ribbon cable into the Zero
Insertion Force (ZIF) connector. The cable is inserted horizontally into the connector.
Warning—Potential Damage: When opening or closing this type of actuator, gently lift or close the two tabs
located on each end of the actuator. The two tabs should be moved simultaneously. Do not close the
actuator from the center of the actuator.
Removing a cable from the horizontal top contact connector

1 Place a finger at each end of the locking actuator, and then gently lift the actuator to the unlocked position.
2 Slide the cable out of the connector.
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Inserting a cable into the horizontal top contact connector

1 When installing the cable, check the locking actuator to ensure it is in the unlocked position. The tabs on
the ends of the actuator are vertical when the actuator is unlocked.
2 Insert the cable with the contacts on the cable facing up. Insert the cable on top of the actuator.
Note: Verify that the cable is installed squarely into the connector. If the cable is not squarely installed,
then intermittent failures could occur.
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3 Rotate the locking actuator to the locked position. The cable should not move while this step is performed.
If the cable moves, open the actuator, reposition the cable, and then close the actuator to the down position.
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Horizontal bottom contact connector

This FRU contains a horizontal bottom contact cable connector. Read the instructions before proceeding.
The horizontal bottom contact connector uses a flip locking actuator to lock the ribbon cable into the Zero
Warning—Potential Damage: When opening or closing this type of actuator, gently lift the center of the
actuator using your finger. Do not use a fingernail or screwdriver to open the actuator. This could damage
the ribbon cable. Do not close the actuator from the ends of the actuator.
Removing a cable from the horizontal bottom contact connector

1 Place two fingers towards each end of the locking actuator, and then gently lift the actuator to the unlocked
position.
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Inserting a cable into the horizontal bottom contact connector

1 Check the actuator to verify it is in the open position.
2 Insert the cable into the ZIF connector with the contacts facing downward and away from the locking
actuator. The cable needs to be inserted below the actuator.
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3 Place your finger in the middle of the actuator, and then rotate the locking actuator to the locked position.
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Vertical mount contact connector

This FRU contains a vertical mount contact connector. Read the instructions before proceeding.
The vertical mount contact connector uses a back flip locking actuator to lock the ribbon cable into the Zero
Insertion Force (ZIF) connector. The cable is inserted vertically into the connector.
Warning—Potential Damage: When opening or closing this type of actuator, gently lift the center of the
actuator using your finger. Do not use a fingernail or screwdriver to open the actuator. This could damage
the ribbon cable. Do not close the actuator from the ends of the actuator.
Removing a cable from the vertical mount contact connector

1 Gently rotate the locking actuator from the center of the actuator to the unlocked position.
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Inserting a cable into the vertical mount contact connector

1 When installing the cable, check the locking actuator to verify it is in the open position.
2 Insert the cable with the contacts on the cable away from the locking actuator. Insert the cable on top of the
actuator.
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3 Rotate the locking actuator to the locked position by pressing down on both ends of the actuator. The cable
should not move when this step is performed. If the cable moves, open the actuator, reposition the cable,
and then close the actuator to the down position.
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Horizontal sliding contact connector

This FRU contains a horizontal sliding contact connector. Read the instructions before proceeding.
The horizontal sliding contact connector uses a slide locking actuator to lock the ribbon cable into the Zero
Warning—Potential Damage: When opening or closing this type of actuator, gently push or pull the two tabs
located on each end of the actuator. Do not close the actuator from the center of the actuator. Do not use a
screwdriver to open or close the actuator. Damage to the cable or connector could occur.
Removing a cable from the horizontal sliding contact connector

1 Simultaneously slide the two tabs located on the ends of the locking actuator away from the connector.
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Inserting a cable into the horizontal sliding contact connector

1 When installing the cable, check the locking actuator to verify it is in the open position. If you are opening
the connector, pull back on both end tabs using equal force to avoid breaking the connector.
2 Insert the cable with the contacts on the cable facing away from the locking actuator. Insert the cable on
top of the actuator.
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3 Slide the locking actuator towards the connector, locking the cable into place. The cable should not move
when this step is performed. If the cable moves, open the actuator, reposition the cable, and then close the
actuator to the down position.
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Low Insertion Force (LIF) connector

This FRU contains a Low Insertion Force (LIF) connector. Read the instructions before proceeding.
Warning—Potential Damage: When installing a cable into an LIF connector, care must be taken to avoid
bending the edges of the cables and damaging the contacts on the cables.
Inserting a cable into the LIF connector

1 Looking at the connector, take note on which side the contacts are located. Many boards will have the word
“contacts” stamped on them to indicate which side of the LIF has the contacts. When looking at the board,
take note that the contacts from the board to the connector are located on the side of the connector with
the contacts.
2 Insert the cable squarely into the connector.

Note: Verify that the cable is installed straight into the connector. If the cable is not installed properly,
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Printhead assembly adjustment

A printhead needs to be correctly positioned after it has been removed. Use a sharp pencil or a small, flat-blade
screwdriver to mark the location of the old printhead on the printer frame. Align the new printhead relative to
the location of the old printhead.
Note: Skew is caused by a sheet being fed through the printer while misaligned. The entire image is rotated
relative to the sheet edges. However, a mechanically misaligned printhead causes the horizontal lines to
appear skewed, while the vertical lines remain parallel to the vertical edges. There are no adjustments for
skew. Check the pick tires for wear, the paper path for obstructions, the fuser for proper setting, and the tray
paper guides for fit to the media.
Paper feed Printhead
skew misalignment
To adjust the printhead:

1 POR into the Diagnostics menu, and print a Quick test page:
Diagnostics Menu > Print Tests > Tray 1 > Single
2 Fold the printed test page on the left side so that a few millimeters of grid lines wrap around the outside of
the fold.
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3 Fold a second vertical fold near the center so that the left side top edge aligns with the right side top edge.
4 If the grid lines of the right flap align below the corresponding lines on the left flap, then adjust the printhead
clockwise relative to the printer, and recheck. If the grid lines of the left flap align below the corresponding
lines of the right side, then adjust the printhead counterclockwise.
5 Print another Quick test page, and check if adjustments are still needed.
6 After obtaining a properly adjusted image on the paper, tighten all the screws.
Note: If necessary, print a Quick test page again and perform the Registration adjust procedure to correct
the skew and misalignments. See “Registration adjust” on page 176.
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Removal procedures
Keep the following tips in mind as you replace parts:
• Some removal procedures require removing cable ties. You must replace cable ties during reassembly to
avoid pinching wires, obstructing the paper path, or restricting mechanical movement.
• Remove the toner cartridges, imaging kit, and trays before removing other printer parts. The imaging kit
must be carefully set on a clean, smooth, and flat surface. It should also be protected from light while out
of the device.
• Disconnect all external cables from the printer to prevent possible damage during service.
• Unless otherwise stated, reinstall the parts in reverse order of removal.
• When reinstalling a part held with several screws, start all screws before the final tightening.
• For printers that have a soft power switch, make sure to unplug the power cord after powering off.
Left side removals
Left cover removal

1 Remove the screw (A).
A
2 Open the front door.
3 Release the two latches (B), and then disengage the middle front part (C) of the cover from the front door.
Warning—Potential Damage: The ADF might swing open while you position the printer on its side.
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B B
4 Remove the cover.
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Main drive gearbox removal

1 Remove the left cover. See “Left cover removal” on page 209.
2 Release the latch (A), and then detach the link.
3 Remove the four screws (B).
4 Disconnect the cable from the main drive gearbox.

5 Remove the gearbox.
Warning—Potential Damage: Do not lose the fuser gear (C) and spring (D).
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C D
MPF gearbox removal

1 Remove the front door. See “MPF with front access cover removal” on page 256.
3 Remove the main drive gearbox. See “Main drive gearbox removal” on page 211.
4 Disconnect the spring (A).
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5 Remove the three screws (B).
6 Remove the three screws (C).
7 Remove the E-clip (D), and then remove the gear.

Note: The solenoid hinders the removal.
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D
8 Release the two latches (E), and then remove the gears (F).
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Fuser actuator removal

2 Release the latch (A), and then detach the link.
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4 Remove the screw (C).
5 Remove the fuser actuator.

Installation note: To test if the actuator is properly installed, push, and then release the actuator (A). The
actuator should bounce back.
Reverse solenoid removal

2 Remove the right cover. See “Right cover removal” on page 223.
3 Remove the rear cover. See “Rear door and cover removal” on page 273.
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4 Remove the scanner rear covers. See “Scanner rear covers removal” on page 272.
5 Remove the redrive assembly. See “Redrive assembly removal” on page 274.
6 Remove the two screws (A), and then cut the cable.
7 Disconnect connector JDUPSOL1 from the controller board, and then pull the cable out of the printer.
Installation notes:
a Screw in place the replacement solenoid.
b Route the solenoid cable to the hole (A) exiting the rear side of the printer.
Note: Fully stretch the cable, but do it carefully to avoid cuts as it rubs into the edges of the hole.
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c Install the redrive assembly.

d Route the cable onto the redrive assembly. Make sure that the cable properly sits on the clamps.
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MPF solenoid removal

3 Cut the cable, and then remove the solenoid.

5 Remove the power supply. See “Power supply removal” on page 260.
6 Remove the duplex assembly. See “Duplex assembly removal” on page 262.
7 Release the cut cable.
Note: Pay attention to the cable route.
8 Open the controller board access cover, and then disconnect the cable.
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Cartridge gearbox removal

2 Remove the four screws (A).
3 Remove the screw (B).
4 Lift the top cover enough to remove the cartridge gearbox.

5 While lifting the cover, disconnect the cable from the gearbox, and then remove the gearbox.
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Pick roller clutch removal

2 Remove the main drive gearbox. See “Main drive gearbox removal” on page 211.
4 Remove the power supply. See “Power supply removal” on page 260.
5 Remove the duplex assembly. See “Duplex assembly removal” on page 262.
6 Using needle‑nose pliers, block the roller (A) to prevent the shaft from rotating.
7 While blocking the roller, remove the screw (B).
8 Pull out the pick roller assembly clutch, and then cut the cable to remove it.
Installation note: Route the cables as shown.
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Right side removals
Right cover removal

1 Using a flat-head screwdriver, open the controller board access cover.
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A
3 Remove the two screws (B).
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4 Close the access cover, and then open the front door.
5 Release the two latches (C), and then disengage the middle front part (D) of the cover from the front door.
C C
6 Remove the cover.
Interconnect cable removal

2 Position the printer on its rear side.
3 Disconnect the cable JOPT1 from the controller board.
4 Remove the three screws (A).
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5 Detach the right foot (B).
A B
6 Release the two latches (C).
C C
7 Remove the interconnect cable.
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Sensor (tray present) removal

2 Disconnect the cable (A).
3 Release the three latches (B), and then pry to remove the sensor.
A C
Cooling fan removal

MX321 cooling fan
2 Disconnect the cable JFAN1 from the controller board.
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3 Remove the three screws (A), and then remove the fan duct.
A A
4 Remove the screw (B), and then remove the fan bracket.
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5 Remove the two screws (C), and then remove the fan.
MX421, MX521, and MX522 cooling fan

2 Disconnect the cable JFAN1 from the controller board.
3 Remove the three screws (A), and then remove the fan duct.
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4 Remove the two screws (B), and then remove the fan.
Controller board removal

MX421, MX521, and MX522 controller board
2 Remove the scanner rear covers. See “Scanner rear covers removal” on page 272.
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4 Remove the five screws (A), and then remove the metal plate.
5 Disconnect all the cables.
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6 Remove the seven screws (B).
7 Remove the controller board.
MX321 controller board

2 Disconnect all the cables.
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3 Remove the ground screw (A) and the four screws (B).
4 Remove the screw (C).
5 Remove the controller board.
Toner cartridge smart chip contact removal

2 Remove the controller board. See “Controller board removal” on page 230.
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4 Remove the two screws (B), and then lower the right cartridge guide.
5 Slightly pull the right cartridge guide to detach it.
Warning—Potential Damage: To avoid damaging the right cartridge guide, do not cut or disconnect the
cable at the rear of the cartridge guide. Leave the cartridge guide dangling.
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6 Release the four latches (C).
7 Remove the toner cartridge smart chip contact.

Note: Note the original position of the spring (D), actuator (E), and lock (F).
D F E
Installation note: To test if the spring and actuator are properly installed, press the actuator (A). The lock (B)
should move up.
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B A
Cartridge barrel shutter sensor kit removal

1 Remove the top cover. See “Top cover removal” on page 276.
3 Disconnect the cable JCVR1 from the controller board.
4 Remove the screw (A), and then remove the bracket, actuator, spring, and sensor.
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Installation notes:
a Install the sensor (cartridge barrel shutter) actuator (A) as shown.
Note: Make sure that the spring (B) is behind the boss (C).
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b Install the bracket (D) to the sensor (E) as shown.
c Install the sensor and bracket as shown.

Note: Make sure that sensor is aligned with the actuator.
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Front removals
Nameplate removal
2 Push the latch to the left, and then remove the screw (A).
4 Remove the nameplate.
Note: The MPF hinders the removal.
Warning—Potential Damage: Avoid damaging the cable (C) when removing the nameplate.
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Top access cover removal

1 Remove the nameplate. See “Nameplate removal” on page 239.
2 Remove the three screws (A), and then remove the cover (B).
A A
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Bezel (MX321) removal

1 Pry the bezel to release.
2 Remove the bezel.
Numeric keypad cover (MX321) removal

1 Open the ADF.
2 Remove the cover.
Note: Detach the lower right corner of the cover first.
Installation note: When installing the cover, put in place the two latches (A) first.
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Numeric keypad cover (MX421, MX521, and MX522) removal

1 Open the ADF.
2 Remove the cover.
Speaker (MX321) removal

1 Open the ADF.
2 Remove the numeric keypad cover. See “Numeric keypad cover (MX321) removal” on page 241.
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3 Remove the two screws (A).
4 Carefully disengage the control panel assembly from the rear cover, and then set it aside.
5 Remove the screw (B), and then disconnect the speaker cable (C).
B C
6 Remove the speaker.
Speaker (MX421, MX521, and MX522) removal

1 Open the ADF.
2 Remove the numeric keypad cover. See “Numeric keypad cover (MX421, MX521, and MX522) removal”
on page 242.
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4 Set aside the control panel assembly.

5 Remove the screw (B), and then disconnect the speaker cable (C).
B C
6 Remove the speaker.
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Control panel assembly (MX321) removal

1 Open the ADF.
4 Carefully disengage the assembly from the rear cover.
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5 Remove the screw (B), and then disconnect the cable (C).
6 Remove the assembly.
Control panel assembly (MX421, MX521, and MX522) removal

on page 242.
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3 Disconnect the cable (B), and then remove the six screws (C).
C C B C
C C
4 Remove the control panel assembly.
Control panel (MX321) cover and board removal

1 Open the ADF.
2 Remove the bezel.
4 Remove the control panel assembly. See “Control panel assembly (MX321) removal” on page 245.
5 Remove the five screws (A).
6 Remove the board from the cover.
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Control panel (MX421, MX521, and MX522) cover and board removal
on page 242.
3 Disconnect the cable (B), and then remove the six screws (C).
C C B C
C C
4 Remove the board from the cover.
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Scanner front cover removal

1 Open the ADF.
2 Remove the numeric keypad cover. See “Numeric keypad cover (MX321) removal” on page 241 or
“Numeric keypad cover (MX421, MX521, and MX522) removal” on page 242.
3 Remove the control panel assembly. See “Control panel assembly (MX321) removal” on page 245 or
“Control panel assembly (MX421, MX521, and MX522) removal ” on page 246.
4 Slide the right cover to the right to remove.
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Transfer roller removal

CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a
hot component, allow the surface to cool before touching it.
2 Release the two latches (A) on each end of the transfer roller.
3 Remove the roller.
Jam access cover removal

2 Remove the screw (A), and then release the cable from the jam access cover.
3 Push down, and then pull the two ends (B) of the springs to remove them.
4 Repeat step 3 for the other side.
5 Release the two latches (C).
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B. Collecting The Firmware Logs (Fwdebug and Logs - Tar.gz) From The SE Menu

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B. Collecting The Firmware Logs (Fwdebug and Logs - Tar.gz) From The SE Menu

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7017-2xx, -4xx, -6xx

C. Collecting the settings from the Menu Settings Page

Printing the Menu Settings Page

D. Collecting information from the user

Diagnostics and troubleshooting

900 error messages

System software error service check

Does the error remain?

Does the error remain during startup?

Are the cables properly connected?

Diagnostics and troubleshooting

Does the error remain during startup?

Does the error remain during startup?

Does the error remain while these pages were printing?

Does the error remain?

Does the error remain?

Diagnostics and troubleshooting

Does the error remain?

Does the error remain?

Does the error remain?

Does the error remain?

Does the error remain?

Does the error remain?

Diagnostics and troubleshooting

Does the error remain?

Does the error remain?

Does the error remain?

Step 22 Go to step 24. Go to step 23.

Does the error remain?

Does the error remain?

Does the error remain?

Does the error remain?

Diagnostics and troubleshooting

Step 27 Go to step 29. Go to step 28.

Does the error remain?

Does the error remain?

Does the error remain?

Does the error remain?

Diagnostics and troubleshooting

ADF/Scanner hardware errors

840‑843 error messages

Scanner disabled error service check

Does the problem remain?

Are the cables free of damage?

Does the problem remain?

Diagnostics and troubleshooting

Flatbed scanner failure service check

Does the problem remain?

Are the cables free of damage?

ADF scanner failure service check

Does the problem remain?

Are the cables free of damage?

Does the problem remain?

Diagnostics and troubleshooting

Modem/fax card service check

Is the cable properly connected to the modem card and electrical

Does the problem remain?

Is the phone line properly working?