Remedy: 1 Dirt on electrodes on toner cartridge and machine body Clean both electrodes. 2 HVPS PCB unit failure Replace the HVPS PCB unit. 3 Main PCB failure Replace the main PCB ASSY.
Code: 50
Description: The drum unit reached its life and requires replacement.
Causes:
Remedy: Replace the drum unit with a new one.
Code: 51
Description: The paper feed kit MP reached its life and requires replacement.
Causes: 1 Replacement time of the paper feed kit MP.