Xerox Phaser 6120

Image-Quality Problems
Phaser® 6120 Color Laser Printer Service Manual
4-40
Uneven Pitch
Typical Faulty Images
Troubleshooting Procedure
Step Section Check Item Result Action
1 Toner
Cartridge
Is the Toner Cartridge for each color
of toner installed in position?
NO Reinstall.
2 Laser (PH)
Unit
Is the Laser Unit (PH) Unit secured in
position with the fixing screw?
NO Secure it in position.
3 Toner
Cartridge
Is the drive mechanism of the Toner
Cartridge dirty or damaged?
YES Clean or replace the Toner
Cartridge.
4 Imaging Unit Is the photo conductor dirty,
scratched, or worn?
YES Replace the Imaging Unit.
5 2nd Transfer
Roller
Are the Transfer Roller and drive
mechanism dirty, deformed, or worn?
YES Replace the 2nd Transfer Roller.
6 Fusing Unit Are the rollers and drive mechanism
of the Fusing Unit dirty, scratched,
deformed, or worn?
YES Replace the Fusing Unit.
7 Have steps 1-6 eliminated the
problem?
NO Replace the Transfer Belt Unit.
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