• Code: C-2402
• Description: When the main power switch (SW1) turns ON with the fusing temperature below 50°C, the detected temperature of the drum temperature sensor (TH5) is more than 52°C, and when the detected temperature is above 52°C after a specified period of time.
• Causes: Confirmation of the wiring harness and the connector Drum temperature sensor (TH5) Printer control board (PRCB)

• Code: C-2403
• Description: The erase lamp (EL1) is unconnected.
• Causes: Confirmation of the wiring harness and the connector Erase lamp (EL1) Printer control board (PRCB)

• Code: C-2701
• Description: A charge leak is detected. After a charge error detection signal is detected while in the charge ON, up to 5 charge ON/OFF operations occur in succession.
• Causes: Confirmation of the charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /1 (HV1) Printer control board (PRCB)

• Code: C-2702
• Description: A transfer leak is detected. After a transfer error detection signal is detected while in the transfer ON, up to 5 transfer ON/OFF operations occur in succession.
• Causes: Confirmation of the transfer/ separation charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /2 (HV2) Printer control board (PRCB) ADU drive board (ADUDB)

• Code: C-2703
• Description: A separation leak is detected. After a separation error detection signal is detected while in the separation ON, up to 5 separation ON/OFF operations occur in succession.
• Causes: Confirmation of the transfer/ separation charger power feeding contact Confirmation of the wiring harness and the connector High voltage unit /2 (HV2) Printer control board (PRCB) ADU drive board (ADUDB)

• Code: C-2704
• Description: The error detection signal (blowout of a 24V ICP) of the high voltage unit /2 (HV2) is detected.
• Causes: Confirmation of the wiring harness and the connector High voltage unit /2 (HV2) ADU drive board (ADUDB)

• Code: C-2801
• Description: The dirt correction of the sensor is not completed. While in the maximum density correction, the dirt correction of the IDC sensor is not sufficient. When this condition is detected 10 times in succession, the error code is displayed.
• Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Printer control board (PRCB)

• Code: C-2802#
• Description: The maximum density correction is not completed. While in the maximum density correction, the number of rotations of the developing roller gets to the maximum.
• Causes: Cleaning of the IDC sensor Confirmation of the wiring harness and the connector IDC sensor board (IDCB) Developing motor (M3) Printer control board (PRCB) Overall control board (OACB) Write unit