Lexmark CS720dte

• Code: 121
• Description: 121.02 Fuser went over the required temperature during EWC/line voltage detection. 121.03 Fuser hardware and driver mismatch. 121.06 Fuser power is at 100% but did not reach the required temperature. 121.08 Fuser did not reach the required temperature while the page is in the fuser. 121.09 Fuser did not reach the required temperature for motors. Note: Not applicable to standby mode. 121.10 Fuser did not reach the required temperature during start of EWC/line voltage detection. 121.11 Fuser reached the required temperature during final EWC/line voltage detection too late. 121.12 Fuser did not reach the required temperature during final EWC/line voltage detection. 121.13 Fuser reached the required temperature during final EWC/line voltage detection too fast. 121.20 Fuser did not reach the required temperature during steady state control. 121.21 Fuser low power trace heating rate exceeded error threshold. 121.22 Open fuser relay was detected. 121.23 Fuser reached the required temperature during final EWC/line voltage detection too late. 121.24 Fuser did not reach the required temperature during final EWC/line voltage detection. 121.25 Control did not roll over to steady state control after line voltage detection. 121.26 Fuser did not reach the required temperature during warm up. 121.28 Fuser did not reach the required temperature during EP warm up. 121.30 Fuser is on for more than the allowed time after a gap blowout, and did not reach the required temperature. 121.31 Fuser too hot. 121.32 Fuser did not reach the required temperature at 100% power. 121.33 Fuser did not reach the required temperature while the page is in the fuser. 121.34 Fuser did not reach the required temperature during steady state control. 121.35 Fuser too warm to power up and execute EWC/line voltage detection after a wrong fuser was installed. 121.36 Open fuser relay was detected in very cold or unknown ambient temperature. 121.37 Fuser heated too fast during final EWC/lline voltage detection. 121.41 Fuser mechanism did not detect the expected cam sensor signal. 121.42 Fuser gate time increasing out of control. 121.48 Fuser type does not match the fuser driver. 121.50 Fuser went over the required temperature during global over temperature check. 121.51 Fuser secondary heater is too hot. 121.70 Heater resistance is too high. 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. 121.76 Open contact belt thermistor was detected. 121.81 Open fuser backup roll thermistor was detected. 121.82 Open fuser second backup roll thermistor was detected. 121.83 Open fuser narrow media backup roll thermistor was detected. 121.84 Non.contact sensor (BUR) 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 Check the LVPS cable on the LVPS and on the JFSNS connector on the controller for proper connection. Is the cable properly connected at both ends? Go to step 5. Go to step 4. Step 4 Reconnect the cable. Does the problem remain? Go to step 5. The problem is solved. Step 5 Check the cable for damage, and replace if necessary. Does the problem remain? Go to step 6. The problem is solved. Step 6 Check the fuser cable for proper connection and damage, and replace if necessary. Does the problem remain? Go to step 7. The problem is solved. Step 7 Replace the fuser. See “Fuser removal”. Does the problem remain? Go to step 8. The problem is solved. Step 8 Replace the LVPS. See “LVPS removal”. Does the problem remain? Go to step 9. The problem is solved. Step 9 Replace the controller board. See “Controller board removal”. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 126, 127
• Description: 126.01 LVPS line voltage error was detected. 126.02 LVPS line voltage error was detected. 126.06 LVPS 25V line error was detected. 126.07 LVPS 5V rail was down during POR. 126.10 No line frequency was detected. 126.11 Line frequency has gone outside the op127.02 HVPS secondary power supply was not detected.erating range. 127.01 HVPS primary power supply was not detected.
• Remedy: Step 1 Reset the printer. Does the problem remain? Go to step 2. The problem is solved. Step 2 Check the HVPS cable on the JHVPS connector on the controller board for proper connection. Is the cable properly connected at both ends? Go to step 4. Go to step 3. Step 3 Reconnect the cable. Does the problem remain? Go to step 4. The problem is solved. Step 4 Check the cable for damage, and replace if necessary. Does the problem remain? Go to step 5. The problem is solved. Step 5 Replace the HVPS. See “HVPS removal”. Does the problem remain? Go to step 6. The problem is solved. Step 6 Replace the controller board. See “Controller board removal”. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 128.00
• Description: TPS communications error
• Remedy: Step 1 Check the TPS cable for proper connection and damage, and replace if necessary. Does the problem remain? Go to step 2. The problem is solved. Step 2 Check the cable on the JTPSAA1 connector on the controller board and sensor for proper connection. Is the cable properly connected at both ends? Go to step 4. Go to step 3. Step 3 Reconnect the cable. Does the problem remain? Go to step 4. The problem is solved. Step 4 Replace the sensor (TPS). See “Sensor (TPS) removal”. Does the problem remain? Go to step 5. The problem is solved. Step 5 Replace the controller board. See “Controller board removal”. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 142
• Description: 142.80 The motor (CM developer) did not turn on. 142.81 The motor (CM developer) did not turn off. 142.82 The motor (CM developer) speed did not ramp up to the required level. 142.83 The motor (CM developer) stalled. 142.84 The motor (CM developer) ran too slow. 142.85 The motor (CM developer) ran too fast. 142.86 The motor (CM developer) did not run at the correct timing.
• Remedy: Step 1 Reset the printer. Does the problem remain? Go to step 2. The problem is solved. Step 2 a Remove the imaging kit, and then remove the transfer module. See “Transfer module removal”. b Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Motor tests > CM developer c Touch Start. Does the motor run? Go to step 3. Go to step 6. Step 3 Manually turn the drive gears. Do the black developer and transfer module drive gears freely turn? Go to step 5. Go to step 4. Step 4 Replace the motor (EP drive). See “Motor (EP drive) removal”. Does the problem remain? Go to step 5. The problem is solved. Step 5 Check the imaging kit components and transfer module for damage or life expiration, and replace if necessary. Does the problem remain? Contact the next level of support. The problem is solved. Step 6 Check the cables on the motor and on the JCARTP and JCARTS connectors on the controller board for proper connection. Are the cables properly connected at both ends? Go to step 8. Go to step 7. Step 7 Reconnect the cables. Does the problem remain? Go to step 8. The problem is solved. Step 8 Check the cables for damage, and replace if necessary. Does the problem remain? Go to step 9. The problem is solved. Step 9 Replace the motor (CM developer). See “Motor (EP drive) removal”. Does the problem remain? Go to step 10. The problem is solved. Step 10 Replace the controller board. See “Controller board removal”. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 144
• Description: 144.80 The motor (Y developer) did not turn on. 144.81 The motor (Y developer) did not turn off. 144.82 The motor (Y developer) speed did not ramp up to the required level. 144.83 The motor (Y developer) stalled. 144.84 The motor (Y developer) ran too slow. 144.85 The motor (Y developer) ran too fast. 144.86 The motor (Y developer) did not run at the correct timing.
• Remedy: Step 1 Reset the printer. Does the problem remain? Go to step 2. The problem is solved. Step 2 a Remove the imaging kit, and then remove the transfer module. See “Transfer module removal”. b Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Motor tests > Y developer c Touch Start. Does the motor run? Go to step 3. Go to step 6. Step 3 Manually turn the drive gears. Do the black developer and transfer module drive gears freely turn? Go to step 5. Go to step 4. Step 4 Replace the motor (EP drive). See “Motor (EP drive) removal”. Does the problem remain? Go to step 5. The problem is solved. Step 5 Check the imaging kit components and transfer module for damage or life expiration, and replace if necessary. Does the problem remain? Contact the next level of support. The problem is solved. Step 6 Check the cables on the motor and on the JCARTP and JCARTS connectors on the controller board for proper connection. Are the cables properly connected at both ends? Go to step 8. Go to step 7. Step 7 Reconnect the cables. Does the problem remain? Go to step 8. The problem is solved. Step 8 Check the cables for damage, and replace if necessary. Does the problem remain? Go to step 9. The problem is solved. Step 9 Replace the motor (Y developer). See “Motor (EP drive) removal”. Does the problem remain? Go to step 10. The problem is solved. Step 10 Replace the controller board. See “Controller board removal”. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 145
• Description: 145.80 The motor (BOR) did not turn on. 145.81 The motor (BOR) did not turn off. 145.82 The motor (BOR) speed did not ramp up to the required level. 145.83 The motor (BOR) stalled. 145.84 The motor (BOR) ran too slow. 145.85 The motor (BOR) ran too fast. 145.86 The motor (BOR) did not run at the correct timing.
• Remedy: Step 1 Reset the printer. Does the problem remain? Go to step 2. The problem is solved. Step 2 a Remove the transfer module. See “Transfer module removal”. b Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Motor tests > Black only retract c Touch Start. Does the motor run? Go to step 3. Go to step 5. Step 3 Manually turn the BOR gear on the transfer module. Does the gear freely turn? Contact the next level of support. Go to step 4. Step 4 Replace the transfer module. See “Transfer module removal”. Does the problem remain? Go to step 9. The problem is solved. Step 5 Check the cable on the motor and on the JBOR1 connector on the controller board for proper connection. Is the cable properly connected at both ends? Go to step 7. Go to step 6.