Image Defect Troubleshooting (Defect of the Print)
SM 6-55 M085/M086
Trouble –
shooting
1. Bottom surface of Paper tray
2. Paper tray ground terminal.
Yes: Correct the bending of paper tray ground terminal.
3. Toner attached on the develop roller
Are the horizontal stripes at 40.6 mm (develop roller circumference) intervals?
Yes: This problem will disappear by printing approximate 10 pages. If the same
problem occurs, replace the toner cartridge.
4. Scratch and Dirt on the exposure drum
Are the horizontal stripes at 75.0 mm (exposure drum circumference) intervals?
Yes: Replace the drum unit.
5. Scratch and Dirt on the heat roller
Are the horizontal stripes at 78.5 mm (heat roller circumference) intervals?
Yes: Replace the fuser unit.
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.
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