Service manual
Image Defect Troubleshooting (Defect of the Print)
SM 6-47 M085/M086
Trouble –
shooting
5. Between the HVPS PCB/Main PCB connection failure
Is the harness of the HVPS PCB ASSY and main PCB ASSY connected correctly?
No: Reconnect the harness of the HVPS PCB ASSY and main PCB ASSY.
6. HVPS PCB failure
Is the problem solved after replacing the HVPS PCB ASSY?
Yes: Replace the HVPS PCB ASSY.
7. Main PCB failure
Is the problem solved after replacing the main PCB ASSY?
Yes: Replace the main PCB ASSY.
8. Laser unit failure
Is the problem solved after replacing the laser unit?
Yes: Replace the laser unit.
<Location of the laser beam window>