• Code: 900.xx
• Description: RIP Software Unrecoverable RIP software error/ illegal trap.
• Remedy: 1 POR the device. Does the error reoccur? Go to step 2. Problem resolved. 2 • Write down the exact 900.xx error code displayed. • Turn the device off. • Clear the print queues. • Disconnect all communication cables, and remove all memory options. • Remove all ISP and modem cards. • Restart the device into Diagnostics mode. Does the 900.xx error reoccur during startup? Go to step 3. Go to step 6. 3 Check all the cables connected to the RIP board for proper connectivity. Are the cables properly connected? Go to step 5. Go to step 4. 4 Properly connect the cables to the RIP board. Restart the device into Diagnostic mode. Does the 900.xx error reoccur during startup? Go to step 5. Go to step 6. 5 Replace the RIP board, and restart the device. Does this fix the problem? Note: If an error, different from the original 900.xx, is displayed, consult the service check for that error. Problem resolved. Go to step 31. 6 Print the following: • Error log • Menu settings page • Network settings page Does the 900.xx error reoccur while these pages were printing? Go to step 31. Go to step 7. 7 Re-attach the communications cable. Restart the printer to operating mode. Send the printer a print job. Does the 900.xx error reoccur? Note: Before performing this step, write down this information about the file being sent to the printer: • Application used • Operating system • Driver type • File type (PCL, PostScript, XPS, etc.) Go to step 8. Go to step 10. 8 Restart the printer to operating mode. Send a different print job to the device. Does the 900.xx error reoccur? Go to step 9. Go to step 10. 9 Upgrade the firmware. Contact your next level of support for the correct firmware level to use. Restart the printer to operating mode. Send the printer a print job. Does the 900.xx error reoccur? Go to step 31. Go to step 10. 10 Is the device a Multi-function printer? Go to step 11. Go to step 13. 11 Run a copy job. Does the 900.xx error reoccur? Go to step 31. Go to step 12. 12 Run a scan to PC job. Does the 900.xx error reoccur? Go to step 31. Go to step 13. 13 Is there optional memory installed? Go to step 14. Go to step16. 14 Reinstall the memory, and send a print job to the device. Does the 900.xx error reoccur? Go to step 15. Go to step 16. 15 Install a Lexmark recommended memory option. Send a print job to the device. Does the 900.xx error reoccur? Go to step 31. Problem resolved. 16 Is there a modem installed on the device? Go to step 17. Go to step 21. 17 Reinstall the modem. Restart the device. Does the 900.xx error reoccur? Go to step 18. Go to step 20. 18 Upgrade the firmware. Contact your next level of support for the correct firmware level to use. Restart the printer to operating mode. Send the printer a print job. Does the 900.xx error reoccur? Go to step 19. Problem resolved. 19 Replace the modem. Restart the device. Does the 900.xx error reoccur? Go to step 31. Problem resolved. 20 Run a fax job. Does the 900.xx error reoccur? Go to step 31. Go to step 21. 21 Are there any ISP (internal solutions port) options installed? Go to step 22. Problem resolved. 22 Reinstall the first ISP option. Restart the device. Does the 900.xx error reoccur? Go to step 24. Go to step 23. 23 Run a job to test the option. Does the 900.xx error reoccur? Go to step 24. Go to step 26. 24 Upgrade the firmware. Contact your next level of support for the correct firmware level to use. Restart the printer to operating mode. Does the 900.xx error reoccur? Go to step 25. Problem resolved. 25 Replace the faulty ISP option. Restart the device. Does the 900.xx error reoccur? Go to step 31. Go to step 26. 26 Are there any more ISP options to install? Go to step 27. Problem resolved. 27 Install the next ISP option. Restart the device. Does the 900.xx error reoccur? Go to step 29. Go to step 28. 28 Run a job to test the option. Does the 900.xx error reoccur? Go to step 29. Go to step 26. 29 Upgrade the firmware. Contact your next level of support for the correct firmware level to use. Restart the printer to operating mode. Does the 900.xx error reoccur? Go to step 30. Go to step 26. 30 Replace the faulty ISP option. Restart the device. Does the 900.xx error reoccur? Go to step 31. Go to step 26. 31 Contact your next level of support. You will need the following information for them: • Exact 900.xx error digits and complete error message • Printed menu settings page • Printed network settings page • Device error log • A sample print file if error appears to be isolated to a single file • File/Application used if error is related to specific print file • Device Operating System • Driver used (PCL/PS) • Frequency of the occurrence of the error

• Code: 902.xx ... 908.04
• Description: A general engine software error. 902.xx Service Engine Software 903.xx Service Engine Software 904.xx Service Engine Software 905.xx Service Engine Software 906.xx Service Engine Software 907.xx Service Engine Software 908.01 Service Engine Software 908.02 Service Engine Software 908.03 Service Engine Software 908.04 Service Engine Software
• Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable connections. Are all the cable connections secure? Replace the RIP board. See “RIP board removal”. Securely make all the connections. POR the printer

• Code: 925.01
• Description: Service Main Fan Main fan stalled
• Remedy: 1 Turn off the printer, and remove the rear shield. See “Rear shield removal”. Unplug the fan cable at JFAN1 and turn the printer on. Check the following connectors: 1 +3.3 V dc 2 Ground 3 +24 V dc Are the measured values correct? Replace the top cover (which includes the fan). See “Top cover assembly removal”. Replace the RIP board. See “RIP board removal”.

• Code: 929.xx
• Description: Service Toner Sensor The printer doesn't register a transition on the toner sensor for a set period of time. Either the printer's toner sensor is faulty or its print cartridge is defective.
• Remedy: The Servicer should follow these steps to resolve this problem: 1. Use the base sensor test in Diagnostics mode to inspect the toner sensor's operation. 2. If the toner sensor is operating correctly, then the problem is the print cartridge.

• Code: 930.09
• Description: Service LVPS Fuser zero crossings out of range. Zero crossing detected.
• Remedy: 1 Some low-voltage power supply FRUs have a voltage selector switch. If it does, the switch needs to be set to the correct voltage for your area. Has the LVPS been changed? Check the switch on the side of the LVPS to verify the correct voltage is set. Go to step 2. 2 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JFUSES1 for proper connection to the RIP board, the cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Replace the fuser cable. Go to step 3. 3 Check the connector JLVPS1 for proper connection to the RIP board, the cable for pinch points, and the cable or connector for any other damage. Is the cable damaged? Repair or replace the LVPS cable. See “Low-voltage power supply (LVPS) assembly removal”. Go to step 4. 4 Check the power cable on the left side of the fuser and the thermistor cables and connections on the right side of the fuser. Are the cables or connectors damaged? Repair the cables. If the cables cannot be repaired, replaced the fuser. See “Fuser assembly removal”. Go to step 5. 5 Disconnect the cable at JFUSES1 on the RIP board, and check the following voltages: Are the values approximately correct? Go to step 6. Replace the RIP board. See “RIP board removal”. 6 Replace the fuser. See “Fuser assembly removal”. Does the error clear? Problem resolved. Replace the RIP board. See “RIP board removal”.

• Code: 930.xx
• Description: Service LVPS Low voltage power supply did not detect zero crossing.
• Remedy: Replace the LVPS.

• Code: 940.xx
• Description: Service Cyan TMC Sensor The cyan cartridge toner meter cycle (TMC) switch error. .01—Recoverable .02—Non-recoverable
• Remedy: 1 Remove the toner cartridge, and inspect the lenses on the toner meter cycle (TMC) card. Are the lenses blocked, damaged, or dirty? Repair or replace the TMC card. See “Toner meter cycle (TMC) card removal”. Go to step 2. 2 Turn off the printer, and remove the rear shield. See “Rear shield removal”. Disconnect the cable at the JSP1 connector on the RIP board. Turn the printer on, and measure the voltages below: 1 Ground 2 +3.3 V dc 3 +3.3 V dc 4 +3.3 V dc 5 +3.3 V dc 6 +0.0 V dc Are any of the voltage values incorrect? Replace the RIP board. See “RIP board removal”. Replace the TMC card. See “Toner meter cycle (TMC) card removal”.

• Code: 941.xx
• Description: Service Magenta TMC Sensor The magenta cartridge toner meter cycle (TMC) switch error. .01—Recoverable .02—Non-recoverable
• Remedy: 1 Remove the toner cartridge, and inspect the lenses on the toner meter cycle (TMC) card. Are the lenses blocked, damaged, or dirty? Repair or replace the TMC card. See “Toner meter cycle (TMC) card removal”. Go to step 2. 2 Turn off the printer, and remove the rear shield. See “Rear shield removal”. Disconnect the cable at the JSP1 connector on the RIP board. Turn the printer on, and measure the voltages below: 1 Ground 2 +3.3 V dc 3 +3.3 V dc 4 +3.3 V dc 5 +3.3 V dc 6 +0.0 V dc Are any of the voltage values incorrect? Replace the RIP board. See “RIP board removal”. Replace the TMC card. See “Toner meter cycle (TMC) card removal”.