Lexmark CS820

• Code: 121.32...121.34
• Description: 121.32 Fuser did not reach the required temperature (on 100% power). 121.33 Fuser did not reach the required temperature (while page is in fuser). 121.34 Fuser did not reach the required temperature (during steady state control).
• Remedy: Step 1 Check the fuser for proper installation. Is the fuser properly installed? Go to step 3. Go to step 2. Step 2 Reinstall the fuser. Does the problem remain? Go to step 3. The problem is solved. Step 3 Remove the fuser, and then install a different fuser. See “Fuser removal”. Does the problem remain? Go to step 4. The problem is solved. Step 4 Check the controller board socket JFSR1 connection. Is the cable properly connected? Go to step 6. Go to step 5. Step 5 Reseat the cable. Does the problem remain? Go to step 6. The problem is solved. Step 6 Reset the printer. Does the problem remain? Go to step 7. The problem is solved. Step 7 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 8. The problem is solved. Step 8 Check the fuser cables for damage. Are the cables free of damage? Go to step 10. Go to step 9. Step 9 Replace the cables. Does the problem remain? Go to step 10. The problem is solved. Step 10 Reset the printer. Does the problem remain? Go to step 11. The problem is solved. Step 11 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 12. The problem is solved. Step 12 Reset the printer. Does the problem remain? Go to step 13. The problem is solved. Step 13 Replace the controller board. See “Controller board removal”. Does the problem remain? Go to step 14. The problem is solved. Step 14 Reset the printer. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 121.50
• Description: Description Action 121.50 Fuser went over the required temperature (during global overtemp check).
• Remedy: Step 1 Check the fuser for proper installation. Is the fuser properly installed? Go to step 3. Go to step 2. Step 2 Reinstall the fuser. Does the problem remain? Go to step 3. The problem is solved. Step 3 Remove the fuser, and then install a different fuser. See “Fuser removal”. Does the problem remain? Go to step 4. The problem is solved. Step 4 Check the controller board socket JFSR1 connection. Is the cable properly connected? Go to step 6. Go to step 5. Step 5 Reseat the cable. Does the problem remain? Go to step 6. The problem is solved. Step 6 Reset the printer. Does the problem remain? Go to step 7. The problem is solved. Step 7 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 8. The problem is solved. Step 8 Check the fuser cables for damage. Are the cables free of damage? Go to step 10. Go to step 9. Step 9 Replace the cables. Does the problem remain? Go to step 10. The problem is solved. Step 10 Reset the printer. Does the problem remain? Go to step 11. The problem is solved. Step 11 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 12. The problem is solved. Step 12 Reset the printer. Does the problem remain? Go to step 13. The problem is solved. Step 13 Replace the controller board. See “Controller board removal”. Does the problem remain? Go to step 14. The problem is solved. Step 14 Reset the printer. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 121.71...121.84
• Description: 121.71 Open fuser main heater thermistor was detected. 121.72 Open fuser secondary heater thermistor was detected. 121.73 Open fuser middle heater thermistor was detected. 121.74 Open fuser edge thermistor was detected. 121.81 Open fuser backup roll thermistor was detected. 121.82 Open fuser second backup roll thermistor was detected. 121.84 Non.contact BUR sensor is missing.
• Remedy: Step 1 Check the fuser for proper installation. Is the fuser properly installed? Go to step 3. Go to step 2. Step 2 Reinstall the fuser. Does the problem remain? Go to step 3. The problem is solved. Step 3 Remove the fuser, and then install a different fuser. See “Fuser removal”. Does the problem remain? Go to step 4. The problem is solved. Step 4 Check the controller board socket JFSR1 connection. Is the cable properly connected? Go to step 6. Go to step 5. Step 5 Reseat the cable. Does the problem remain? Go to step 6. The problem is solved. Step 6 Reset the printer. Does the problem remain? Go to step 7. The problem is solved. Step 7 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 8. The problem is solved. Step 8 Check the fuser cables for damage. Are the cables free of damage? Go to step 10. Go to step 9. Step 9 Replace the cables. Does the problem remain? Go to step 10. The problem is solved. Step 10 Reset the printer. Does the problem remain? Go to step 11. The problem is solved. Step 11 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 12. The problem is solved. Step 12 Reset the printer. Does the problem remain? Go to step 13. The problem is solved. Step 13 Replace the controller board. See “Controller board removal”. Does the problem remain? Go to step 14. The problem is solved. Step 14 Reset the printer. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 126.06
• Description: LVPS 25V line error was detected.
• Remedy: Step 1 Check the fuser for proper installation. Is the fuser properly installed? Go to step 3. Go to step 2. Step 2 Reinstall the fuser. Does the problem remain? Go to step 3. The problem is solved. Step 3 Remove the fuser, and then install a different fuser. See “Fuser removal”. Does the problem remain? Go to step 4. The problem is solved. Step 4 Check the controller board sockets JFSR1 and CN1 connections. Is the cable properly connected? Go to step 6. Go to step 5. Step 5 Reseat the cable. Does the problem remain? Go to step 6. The problem is solved. Step 6 Reset the printer. Does the problem remain? Go to step 7. The problem is solved. Step 7 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 8. The problem is solved. Step 8 Check the LVPS cables for damage. Are the cables free of damage? Go to step 10. Go to step 9. Step 9 Replace the cables. Does the problem remain? Go to step 10. The problem is solved. Step 10 Reset the printer. Does the problem remain? Go to step 11. The problem is solved. Step 11 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 12. The problem is solved. Step 12 Reset the printer. Does the problem remain? Go to step 13. The problem is solved. Step 13 Replace the controller board. See “Controller board removal”. Does the problem remain? Go to step 14. The problem is solved. Step 14 Reset the printer. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 126.10, 126.11
• Description: 126.10 No line frequency was detected. 126.11 Line frequency has gone outside the operating range.
• Remedy: Step 1 Check the fuser for proper installation. Is the fuser properly installed? Go to step 3. Go to step 2. Step 2 Reinstall the fuser. Does the problem remain? Go to step 3. The problem is solved. Step 3 Remove the fuser, and then install a different fuser. See “Fuser removal”. Does the problem remain? Go to step 4. The problem is solved. Step 4 Check the controller board sockets JFSR1 and CN1 connections. Is the cable properly connected? Go to step 6. Go to step 5. Step 5 Reseat the cable. Does the problem remain? Go to step 6. The problem is solved. Step 6 Reset the printer. Does the problem remain? Go to step 7. The problem is solved. Step 7 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 8. The problem is solved. Step 8 Check the LVPS cables for damage. Are the cables free of damage? Go to step 10. Go to step 9. Step 9 Replace the cables. Does the problem remain? Go to step 10. The problem is solved. Step 10 Reset the printer. Does the problem remain? Go to step 11. The problem is solved. Step 11 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 12. The problem is solved. Step 12 Reset the printer. Does the problem remain? Go to step 13. The problem is solved. Step 13 Replace the controller board. See “Controller board removal”. Does the problem remain? Go to step 14. The problem is solved. Step 14 Reset the printer. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 128.00
• Description: Toner patch sensor error was detected.
• Remedy: Step 1 Check the cable JTPS1 on the controller board for proper connection. Is the cable properly connected? Go to step 3. Go to step 2. Step 2 Reseat the cable. Does the problem remain? Go to step 3. The problem is solved. Step 3 Check the sensor (TPS) cable for proper connection. Is the cable properly connected? Go to step 5. Go to step 4. Step 4 Reseat the cable. Does the problem remain? Go to step 5. The problem is solved. Step 5 Perform the Toner patch sensing service check. Does the problem remain? Contact the next level of support. The problem is solved.