Thanks. We got it this morning and I have it installed. Works great and certainly solved the problem (as I expected it would).

-Alan A.
Los Altos Hills, CA

Thank you. The product was delivered just a few minutes ago. Thank you for the speedy shipment and response. I truly appreciate it.

Also, can I get some instructions on putting in the rollers. I am new to this and do not want to screw this up. Any help here would be appreciated too.

Thank you and your firm again, you were terrific.

John D.
San Rafael, CA

Great that you have that part in stock and thank you for your quick reply. I will have purchasing call in an order.
Veronica Casto
Houston, TX

It is nice to place an online order & get to talk to an actual person. Wayne Haub
Kansas City

Save time and money by servicing your own Lexmark printer
Lexmark Laser Printer Error Codes

Lexmark error codes may not apply equally to all models.  Scroll Down to your error code....
    Jump to error 92X 
Some Lexmark printers have indicator lights which indicate by solid, blinking or off, an error condition.  A secondary error indication can be obtained by pressing an releasing a button. email with model, primary and secondary pattern for troubleshooting info. No inkjet error codes available
Error Code
Error Message
Input Paper Sensor was not triggered - Paper may be jammed at the sensor. Remove toner cartridge for better access to jammed paper.
69G5480 Pickup Roller  99A0070 Pickup Rollers

Paper not being picked up check paper tray & pickup rollers
Replace rollers if worn smooth or cracked

ERROR 21 The exit sensor was not made in time after the input sensor as made.  
ERROR 22 The exit sensor was not unmade in time.  
ERROR 23 Jam at the duplex unit. Paper is either not leaving the duplex entry sensor in time or not making or unmaking the duplex exit sensor in time. See “Duplex” on page 2-16  
Error 24 The defined paper size is too short to print data as formatted.  
Error 25 Input sensor made at wrong time. May be due to the paper feeding manually while motors running and previous page in path.  
Error 26 Duplex unit is installed but paper tray is not sensed.  
Error 27 Envelopes/paper loaded are wrong size.  Load correct size
Error 28 Input sensor not made after pick attempt. Tray is empty or not installed, paper jam in entry throat, or printer is requesting a manual feed.  
Error 29 The output bin sensor has not been unmade.See “Output Bin Sensor” on page 2-22.  
Error 30 30 Top Cover Open or Print Cartridge Missing Make sure the spring-mounted pin on the printhead shroud is installed
properly and that it is detected by the ramp on the print cartridge as the cover closes. The pin should enter the tower on the HVPS and depress the cover switch.
Error 31 Error code 31 is displayed when the top front cover is closed and a defective print cartridge is detected. It may take the printer 10-20 seconds to determine if the print cartridge is defective. Note: This error indicates the printer was able to read the cartridge ID, but the ID did not pass the verification test.
Remove and reinstall print cartridge.
Shop for Lexmark print cartridges
Error 32 32 Wrong Print Cartridge installed The installed print cartridge is not supported by the Optra printer.  
Error 37 37 Insufficient Collation Memory Memory is too full to collate the print job.  
Error 38 38 Memory Full Memory used to store pages is full. To verify that the printer recognizes all the installed memory, go to the user menus and print the “Print Menus” test page. Make sure the memory shown on the printout matches the installed memory. Install more memory
Simplify print job
Delete fonts, macros and other data stored in RAM
Error 39 Page too complex to print.To verify that the printer recognizes all the installed memory, go to the user menus and print the “Print Menus” test page. Make sure the memory shown on the printout matches the installed memory.  
Error 43 Font card format not supported by
Error 44 Defective font card installed in font slot.  
Error 47 47 Font Card Removed While Printing Printer needs data on removed card.  
Error 52 Flash Full - Not enough flash memory for data requested to be stored.  
Error 53 Unformatted or Defective Flash - Flash problem at POR or while
attempting to write.
Error 54 Serial Error - Framing or parity error on serial.  
Error 58 Duplex Not Attached Duplex is electrically connected but no longer mechanically attached, and printer top cover is closed.  
Error 59 Duplex Cover Open Top cover of duplex unit is sensed open.  
Error 62 Disk Full Not enough disk space for data that has been requested to be written to disk.  
Error 63 Unformatted or Defective Disk The printer will ignore a disk it senses as defective. Run the Quick Disk Test. If the test fails, the disk is defective or the data on track1 is bad. If the Quick Disk Test passes but the disk does not work, run the Disk Test/Clean (2 hr. test). Replace the disk if instructed by the operator panel.  
Error 7X Network Card Codes These user codes are documented in various network card user manuals. See “Network Wrap Tests” on page 23.  
Error 80 Network Card Codes These user codes are documented in various network card user manuals. See “Network Wrap Tests” on page 23.  
Error 80 Printer has reached 200,000-300,000* prints without maintenance count reset. It is necessary to replace the fuser assembly, transfer roller, and charge roll at this interval to maintain the print quality and reliability of the printer.
Lexmark maintenance kit  Shop for Lexmark Maintenance kits
* This is a model dependent interval
Install maintenance kit and reset maintenance message

Purchase Lexmark maintenance kits

How did we do?
Error 82 Photo Developer Cartridge Exhausted

The Photo Develper (OPC belt cartridge) has reached the end of it's life and must be replaced.
Press "GO" to clear message and temporarily continue


Error 84 Transfer
The Transfer drum has reached the end of it's life and must be replaced.  May require service technician
Press "GO" to clear message and temporarily continue
Error 88 Toner Low Toner sensor detects low toner.  
Error 122 Fuser Error - Problem in the fuser, not heating, heating to quickly or too hot. Perform fuser service check. Can also be LVPS or system board. Replace fuser assembly
Replace Fuser
Lexmark Fuser

Error 145.XX


Motor bump aligner service check
1. Make sure top access door is closed securely
2. Verify latch relay is operating - slowly close door and listen for interlock switch
3. Check for 24V at red wire on interlock switch with door closed
4. Replace the bump alignment motor


Replace bump motor
Replace interlock switch
Replace System Card
Error 230 Paper Jam - Check Duplex
The paper is most likely jammed in the Duplex Unit. Remove the duplex front cover to access the jam area. If the paper is jammed in the rear of the duplex, replace the duplex front cover and open the duplex rear door. If the paper is not
jammed in the duplex unit, then it may be jammed in the rear of the printer. Open the printer rear door to access the jam.
        Remove jammed media
How did we do?
Error 24X Paper Jam - Check Tray "X"
Primary: Paper is jammed around Tray
X (X=tray 1 thru 5). Try opening Tray X.
If the tray is difficult to remove, then you may have to remove the tray above or below tray X to remove the jammed pages.

Secondary: When this message is displayed, do not remove accumulated sheets during the jam clearance procedure as the printer will not reprint the removed sheets. Also, if the accumulated sheets are removed, the portion of the job printed after the jam will not be stapled.
      Remove jammed media
Error 250 Paper Jam - Check MP Feeder Paper is jammed in the multipurpose feeder.
Remove jammed media
Error 90X Software Error Unrecoverable software error. If one of these errors appeared during POST, or while the printer was idle (not printing or receiving data), or while trying to print one of the internal test pages, replace the system board. If the error appeared while sending a job from the host to the printer, turn the printer off, then turn it on and try again.  

Error 901

Engine Flash

Indicates the Flash with the system code program is defective


Replace System Board

Request Quote

Error 914
DC Pick Motor - No Encoder Feedback
Check the integrated paper tray, tray 1, for paper loading problems. Reload the paper and do a power on reset. Check paper sensor flag for restricted movement or damage. Check connecting cables for continuity. If cables, connectors and connections are good replace assemblies listed.

Replace the Autocompensator Assy.
Replace System Board

Request Quote
Error 917 Check the transfer roller for toner buildup, surface damage to the roller, oil, or other contaminants on the surface of the roller. Replace the transfer roller as necessary. Roller is approximately 2" in circumference print defects with this repetitive spacing can be caused by transfer roller problems, on a standard 11" page defect would repeat five times. The transfer roller is included in the maintenance kit.

Transfer Roll Error Cannot start servo operation. Verify correct cable connections from the Engine board to the HVPS. Make sure there is continuity between the transfer roller and its contact on the HVPS; replace the transfer roll if the continuity is correct. If there is no continuity, make sure the HVPS contact returns to its upward limit when depressed, and make sure the left bearing of the transfer roll is making proper contact.
Check the left and right transfer roll arm assembly to make sure it is fastened and locked in the down position if applicable to your machine. There should be zero ohms resistance between the transfer roll shaft and the high voltage supply contact.

Error 920

920 Fuser Error indicates the Fuser is below temperature while printing. The fuser, melts or fuses the toner to the media and has a heat roller and a pressure roller. The heated roller is heated by a halogen lamp or in some cases a solid state ceramic heating element and is subject to failure.

A 920 error caused by low line voltage can sometimes be cleared by turning the machine off and then on again.

Error 920.X and 922.XX may display for a cold fuser.
Some 920.xx error codes may be cleared by turning the printer on and off and allowing it to complete POR.
In general, fuser errors require replacement of the fuser
as a cost effective repair.
Fuser errors can be from a cold fuser or an overheated fuser. Newer machines display a sub code to indicate which condition applies. Additional info on X and XX codes available by email.

Observe the lamp through the left near side of the printer. It may be necessary to remove the re drive assembly to observe the lamp cycling on and off.

Error 921 Fuser is below standby temperature when idle.
Indicates that the fuser is below standby temperature
when the printer is idle.
Error 922

Fuser failed to reach standby temperature. Check the continuity of the fuser lamp at the two heavy leads. If an open circuit, replace the lamp or fuser. The fuser assembly is subject to mechanical wear and heat related degradation and is a scheduled replacement item in most machines at between 200K and 350K pages. The fuser is the main part of a printer maintenance kit. The fuser can usually be removed with two simple screws and the entire assembly lifted out. We can email further info if needed for your particular model.  It can also be the LVPS (low voltage power supply) or a fuse in the power supply on some models.  Use caution when measuring AC voltages.  Check LVPS cable for continuity.

Thermistor Check:                                     Lexmark Fuser
HOT - J2-1 - J2-2 = 2.5K ohms

COLD = 150K ohms to 260K ohms           
Replace fuser assembly

Error 923

Fuser is too hot while printing or when idle.
• Short in the thermistor circuit.
• Noisy thermistor signal
• Fuser is actually overheating due to
hardware faults.

Most cost effective solution is to replace the fuser
Lexmark Fuser Pricing
Error 924 924 Fuser Error - Open circuit detected in thermistor circuit. The thermistor provides feedback on the temperature of the fuser roller and when it fails, the fuser power is shut off and the fuser does not heat up. Replacement of the thermistor is not a cost effective repair, replace fuser assembly.
Error 925 A 925 service error indicates the wrong fuser lamp is installed in the printer and does not match the one stored in the printer code. Check the fuser lamp is the correct type of lamp that should be installed.

• Verify the line voltage is not exceeding the maximum rating for the printer.
Make sure fuse is installed correctly, Verfy proper fuser is being used. Most cost effective solution is to replace the fuser
Lexmark Fuser Pricing
Error 927

Main Fan Stalled, Cartridge Fan or RIP fan stalled,
Power off and manually spin fan - it should rotate freely.
Check fan connector and cable for loose or damaged connection.

Check fan for binding or defective bearing - Replace Fan

How did we do?
Error 928 Erase lamp assembly missing or disconnected  
Error 929

The toner sensor is not operating properly, the developer
drive assembly is not operating properly or the print
is defective.
Check Toner Sensor
Check Cable
Check System Board

Check developer drive for worn, loose or broken parts. Check the wiring harness cable. Check the operation of the toner sensor.
Error 930 The wrong printhead is installed. Replace with the
correct printhead.
Error 931 Printhead error - No first sync - check connections at both ends of cable for corrosion or oxidation. Reconnect.  Can be system board or printhead.
Error 932 Lost hsync  No High voltage signal - check connections at both ends of cable for corrosion or oxidation. Reconnect.  Can be system board or printhead. Requires further measurement
The printhead (laser scanner) does not contain any
serviceable parts.
Error 934

Printhhead Error - Lost Lock condition

Indicates a problem with the mirror motor circuit in the printhead assembly or the mirror motor cable to the system board cable or system board assembly.

Error 935

Printhead Error - May have sub-codes. Mirror motor unable to reach operational speed, various other component level failures indicated by 935.XX


Check cables, look for chafing or damage to ribbon cable at sharp bends around rear cover. Replace printhead, system board or ribbon cable.
   Replace Printhead Pricing
Error 936
Error 937

Error 936/937 Main Drive Motor, Transport Motor
An error with the main drive motor has been sensed by the printer

Optra s 2450 Optra s 1250 Optra s 1650
Optra s 2455 Optra s 1255 Optra s 1855
Optra s 2420 Optra s 1620 Optra S 1625
Optra Se 3455 Optra t610 Optra t612
Optra t614 Optra t616
t520 t522 t620 t622 t630 t632 t634

Optra T 640/642/644
Mirror motor not up to speed. Check printhead, cable, motor, system board.

Power printer off one to two minutes.
Open doors and covers and remove the toner cartridge. Make sure there is no paper jammed in the printer. Pay close attention to the area where the toner cartridge sits. The main motor is located just to the left of the toner cartridge.

If either the 936 error or the 937 error returns after you power on the printer or when you try to print, the printer will require service. The main motor assembly may need to be replaced.

Error 939

RIP Communications Lost
Controller Engine Communications Lost
The controller board and the engine board cannot
communicate with one another.

POR several times
Check each board
for secure ground.
Replace the assys
in the following
1. Controller Board
2. Engine Board
3. Intterconnect  Board

Error 940-943
Color Machines

Toner Metering Cycle failure CMKY cartridge
940 = Cyan cartridge
941 = Magenta cartridge
942 = Yellow cartridge
943 = Black cartridge
Toner metering cycle (TMC) is where the code and electronics in the printer sense an addition of toner in the cartridge developing area. If the printer is expecting a toner addition cycle but one is not detected, a 94x TMC Error is displayed.


Check the toner metering cam on back of suspect cartridge. If not present check in printer. Replace defective cartridge.
Check the TMC pin in the cartridge contact error for free non binding movement

If pin does not move freely you may need to replace the contact assembly. Contact service person

Error 940
LV Power Supply
Low voltage power supply cross over test failed. Check connections to the to interconnect card assembly. Check AC power source for noise.
Replace low voltage power supply assembly.
Request Quote
Engine Board
Engine board failure
Replace the Engine Board
Request Quote

NVRAM Failure  953: NVRAM Chip Failure
                        954: NVRAM CRC Failure

Optra T 640/642/644
953 - Replace the operator panel board or upper front cover.
954 - Replace the interconnect card.

Network Card X
Indicate a network card failure in the specified slot, X=any card in slot 1 or 2.
975- Unrecognizable Network Card
976- Unrecoverable software error in network card X
979- Flash parts failed while programming card X
If the printer is a network model, replace system board
980 <device>
The engine is experiencing unreliable communication with the specified device  
981 <device>
The engine protocol violation detected by the specified device.  
982 <device>
Communications error experienced by the specified device  
983 <device>
Invalid command received by the specified device  
Service errors 980 thru 984 <device> can be one of the following: system board, duplex, tray x (1, 2, 3, 4, or 5), envelope feeder or output bin. Service errors 980 thru 984
< device> can be one of the
following: system board, duplex,
tray x (1, 2, 3, 4, or 5), envelope
feeder or output bin.