Service manual

Image Defect Troubleshooting (Defect of the Print)
M085/M086 6-64 SM
20 Ghost
User Check
1. Check the machine's environment, conditions such as high or low humidity may cause this
situation to occur.
2. Check that the appropriate media type or size is selected in the printer driver.
3. Replace the drum unit with a new one.
Possible cause and Remedy
1. Dirt on cleaner electrode
 Are the electrodes of the drum unit and machine body dirty?
Yes: Clean both electrodes. (
p.6-21 "Electrodes location on the drum unit" and
p.6-21 "Electrodes location on the machine")
2. HVPS PCB failure
 Is the problem solved after replacing the HVPS PCB ASSY?
Yes: Replace the HVPS PCB ASSY.