• Code: 5101
• Description: Main high-voltage BK error
  Abnormality of charger roller BK is detected when Vpp adjustment.
• Causes: Installation defectiveness on charger roller unit BK. Defective charger roller unit BK.
• Remedy: Installation defectiveness on charger roller unit BK. Check the mounting state of the charger roller unit BK. If any problem is found, repair or replace the unit.
  Defective charger roller unit BK. Replace the charger roller unit BK.

• Code: 5102
• Description: Main high-voltage C error
  Abnormality of charger roller C is detected when Vpp adjustment.
• Causes: Installation defectiveness on charger roller unit C. Defective charger roller unit C.
• Remedy: Installation defectiveness on charger roller unit C. Check the mounting state of the charger roller unit C. If any problem is found, repair or replace the unit.
  Defective charger roller unit C. Replace the charger roller unit C.

• Code: 5103
• Description: Main high-voltage M error
  Abnormality of charger roller M is detected when Vpp adjustment.
• Causes: Installation defectiveness on charger roller unit M. Defective charger roller unit M.
• Remedy: Installation defectiveness on charger roller unit M. Check the mounting state of the charger roller unit M. If any problem is found, repair or replace the unit.
  Defective charger roller unit M. Replace the charger roller unit M.

• Code: 5104
• Description: Main high-voltage Y error
  Abnormality of charger roller Y is detected when Vpp adjustment.
• Causes: Installation defectiveness on charger roller unit Y. Defective charger roller unit Y.
• Remedy: Installation defectiveness on charger roller unit Y. Check the mounting state of the charger roller unit Y. If any problem is found, repair or replace the unit.
  Defective charger roller unit Y. Replace the charger roller unit Y.

• Code: 5301
• Description: Cleaning lamp BK break error
  After the cleaning lamp BK ON signal is turned on, the cleaning lamp BK break signal is detected continuously 5 times for 10 ms.
• Causes: Poor contact in the connector terminals. Defective cleaning lamp BK. Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC18 on the engine PWB and the connector on the drum unit BK, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective cleaning lamp BK. Replace the drum unit BK.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: 5302
• Description: Cleaning lamp C break error
  After the cleaning lamp C ON signal is turned on, the cleaning lamp C break signal is detected continuously 5 times for 10 ms.
• Causes: Poor contact in the connector terminals. Defective cleaning lamp C. Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC17 on the engine PWB and the connector on the drum unit C, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective cleaning lamp C. Replace the drum unit C.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: 5303
• Description: Cleaning lamp M break error
  After the cleaning lamp M ON signal is turned on, the cleaning lamp M break signal is detected continuously 5 times for 10 ms.
• Causes: Poor contact in the connector terminals. Defective cleaning lamp M. Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC17 on the engine PWB and the connector on the drum unit M, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective cleaning lamp M. Replace the drum unit M.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: 5304
• Description: Cleaning lamp Y break error
  After the cleaning lamp Y ON signal is turned on, the cleaning lamp Y break signal is detected continuously 5 times for 10 ms.
• Causes: Poor contact in the connector terminals. Defective cleaning lamp Y. Defective engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector YC18 on the engine PWB and the connector on the drum unit Y, and the continuity across the connector terminals. Repair or replace if necessary.
  Defective cleaning lamp Y. Replace the drum unit Y.
  Defective engine PWB. Replace the engine PWB and check for correct operation.