Causes: 1 Connection failure of main fan connector. 2 Main fan failure. 3 HVPS control PCB failure. 4 High-voltage power supply PCB failure. 5 Engine PCB failure. 6 Main PCB failure.
Remedy: 1 Connection failure of main fan connector Check the connection of the main fan connector and reconnect it. 2 Main fan failure Replace the main fan ASSY. 3 HVPS control PCB failure Replace the HVPS control PCB ASSY. 4 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 5 Engine PCB failure Replace the engine PCB ASSY. 6 Main PCB failure Replace the main PCB ASSY.
Code: EF
Description: Low-voltage power supply PCB failure
Causes: 1 Low-voltage power supply PCB failure. 2 Main PCB failure.
Remedy: 1 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. 2 Main PCB failure Replace the main PCB ASSY.
Code: F2
Description: Waste toner box near full
Causes: 1 HVPS control PCB failure. 2 Engine PCB failure.
Remedy: 1 HVPS control PCB failure Replace the HVPS control PCB ASSY. 2 Engine PCB failure Replace the engine PCB ASSY.
Code: F4
Description: Waste toner box life end
Causes: 1 HVPS control PCB failure. 2 Engine PCB failure.
Remedy: 1 HVPS control PCB failure Replace the HVPS control PCB ASSY. 2 Engine PCB failure Replace the engine PCB ASSY.
Code: F8
Description: Battery connection error
Causes: 1 Harness connection failure of battery. 2 Battery failure. 3 Main PCB failure.
Remedy: 1 Harness connection failure of battery Check the connection of the battery connector and reconnect it. 2 Battery failure Replace the battery ASSY. 3 Main PCB failure Replace the main PCB ASSY.
Code: F9
Description: Power turned OFF while the function code 74 is being executed and “PARAMETER INT” is being displayed
Causes: 1 Incorrect operation when setting EEPROM customize code.
Remedy: 1 Incorrect operation when setting EEPROM customize code Re-enter the EEPROM customize code.