Description: The black drum unit is not installed.
Causes: 1 Main PCB failure
Remedy: Replace the main PCB ASSY.
Code: FB
Description: The cyan drum unit is not installed.
Causes: 1 Main PCB failure
Remedy: Replace the main PCB ASSY.
Code: FC
Description: The magenta drum unit is not installed.
Causes: 1 Main PCB failure
Remedy: Replace the main PCB ASSY.
Code: FD
Description: The yellow drum unit is not installed.
Causes: 1 Main PCB failure
Remedy: Replace the main PCB ASSY.
Code: FE
Description: Detection of incorrect measurement value of density sensor sensitivity calibration.
Causes: 1 Harness connection failure of registration mark sensor holder ASSY. 2 Harness connection failure of shutter solenoid. 3 Registration mark sensor holder ASSY failure. 4 High-voltage power supply PCB failure. 5 Main PCB failure.
Remedy: 1 Harness connection failure of registration mark sensor holder ASSY Check the harness connection of the registration mark sensor holder ASSY and reconnect it. 2 Harness connection failure of shutter solenoid Check the harness connection of the shutter solenoid and reconnect it. 3 Registration mark sensor holder ASSY failure Replace the registration mark sensor holder ASSY. 4 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY
Code: FF
Description: Wireless LAN module overcurrent error.