• Code: 452
• Description: Paper transfer belt contact motor error
  The paper transfer belt contact motor drives beyond the specified time during home position detection or contact operation.
• Causes: Broken harness or defective connectors. Disconnected connector of paper transfer belt contact sensor or motor. Defective paper transfer belt contact motor. Paper transfer belt unit not installed.
• Remedy: 1. Check and replace the harness and connectors. 2. Replace the paper transfer belt contact motor. 3. Reinstall the paper transfer belt unit.

• Code: 460
• Description: Separation power pack output error
  An interrupt checks the status of the power pack every 20 ms. This SC is issued if the BICU detects a short in the power pack 10 times at D(ac).
• Causes: High voltage leak. Broken harness. Defective image transfer belt unit or paper transfer unit. Defective high voltage supply unitr belt.
• Remedy: 1. Check or replace the harness. 2. Reinstall or replace the image transfer belt unit or paper transfer unit. 3. Replace the high voltage supply unit.

• Code: 491
• Description: High voltage power: Drum/ development bias output error
  An error signal is detected for 0.2 seconds when charging the drum or development.
• Causes: High voltage leak. Broken harness. Defective drum unit or development unit. Defective high voltage supply unit.
• Remedy: 1. Check or replace the harness. 2. Replace the drum unit or paper transfer unit. 3. Replace the high voltage supply unit.

• Code: 492
• Description: High voltage power: Image transfer/ paper transfer bias output error
  An error signal is detected for 200 ms when charging the separation, image transfer belt or paper transfer roller.
• Causes: High voltage leak. Broken harness. Defective image transfer belt unit or paper transfer unit. Defective high voltage supply unit.
• Remedy: 1. Check or replace the harness. 2. Reinstall or replace the image transfer belt unit or paper transfer unit. 3. Replace the high voltage supply unit.

• Code: 497
• Description: Image creation temperature sensor error 1
  The thermistor output of the temperature sensor is not within the prescribed range (more than 0.5 V to less than 3.0 V) for three consecutive times.
• Causes:
• Remedy: 1. Turn the power switch off and on.

• Code: 498
• Description: Temperature and humidity sensor error
  The thermistor output of the temperature sensor was not within the prescribed range (more than 0.76V to less than 2.90V). The thermistor output of the humidity sensor was not within the prescribed range (2.4V or more).
• Causes: Temperature and humidity sensor harness disconnected, loose, defective. Temperature and humidity sensor defective.
• Remedy: 1. Check the connector and harness. 2. Replace the temperature and humidity sensor.

• Code: 501
• Description: 1st paper tray lift motor malfunction
  The paper lift sensor does not detect paper or finish the detection within the specified time, after the tray lift motor switched on.
• Causes: An obstruction (jammed paper, paper scraps, etc.) has blocked the motor drive and caused an overload. Paper lift sensor connection loose, disconnected, or damaged Paper lift sensor defective Tray lift motor connection loose, disconnected, or damaged Tray lift motor defective
• Remedy: 1. Check or replace the connector and harness. 2. Replace the tray lift motor.

• Code: 502
• Description: 2nd paper tray lift motor malfunction (optional paper feed unit)
  The paper lift sensor does not detect paper or finish the detection within the specified time, after the tray lift motor switched on.
• Causes: An obstruction (jammed paper, paper scraps, etc.) has blocked the motor drive and caused an overload. Paper lift sensor connection loose, disconnected, or damaged Paper lift sensor defective Tray lift motor connection loose, disconnected, or damaged Tray lift motor defective
• Remedy: 1. Check or replace the connector and harness. 2. Replace the tray lift motor.