Description: An unrecoverable controller board software error occurred while an unknown process was running.
Remedy: Step 1 POR the device. Does the error reoccur? Go to step 2. Problem solved. Step 2 • Write down the exact 900.xx error code displayed on the device • 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 diagnostic mode Does the 900.xx error reoccur during startup? Go to step 3. Go to step 6. Step 3 Check all the cables connected to the controller board for proper connectivity. Are the cables properly connected? Go to step 5. Go to step 4. Step 4 Properly connect the cables to the controller board. Restart the device into diagnostic mode. Does the 900.xx error reoccur during startup? Go to step 5. Go to step 6. Step 5 Replace the controller 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 solved. Go to step 31. Step 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. Step 7 a Re-attach the communications cable. b Restart the printer to operating mode. c 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. Step 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. Step 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. Step 10 Is the device a multifunction printer? Go to step 11. Go to step 13. Step 11 Run a copy job. Does the 900.xx error reoccur? Go to step 31. Go to step 12. Step 12 Run a scan to PC job. Does the 900.xx error reoccur? Go to step 31. Go to step 13. Step 13 Is there optional memory installed? Go to step 14. Go to step 16. Step 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. Step 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 solved. Step 16 Is there a modem installed on the device? Go to step 17. Go to step 21. Step 17 Reinstall the modem. Restart the device. Does the 900.xx error reoccur? Go to step 18. Go to step 20. Step 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 solved. Step 19 Replace the modem. Restart the device. Does the 900.xx error reoccur? Go to step 31. Problem solved. Step 20 Run a fax job. Does the 900.xx error reoccur? Go to step 31. Go to step 21. Step 21 Are there any ISP (internal solutions port) options installed? Go to step 22. Problem solved. Step 22 Reinstall the first ISP option. Restart the device. Does the 900.xx error reoccur? Go to step 24. Go to step 23. Step 23 Run a job to test the option. Does the 900.xx error reoccur? Go to step 24. Go to step 26. Step 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 solved. Step 25 Replace the faulty ISP option. Restart the device. Does the 900.xx error reoccur? Go to step 31. Go to step 26. Step 26 Are there any more ISP options to install? Go to step 27. Problem solved. Step 27 Install the next ISP option. Restart the device. Does the 900.xx error reoccur? Go to step 29. Go to step 28. Step 28 Run a job to test the option. Does the 900.xx error reoccur? Go to step 29. Go to step 26. Step 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. Step 30 Replace the faulty ISP option. Restart the device. Does the 900.xx error reoccur? Go to step 31. Go to step 26. Step 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)
Code: 955.XX
Description: The Code ROM or NAND flash failed the Cyclic Redundancy Check (CRC), or the NAND experienced an uncorrectable multibit failure.