Xerox Phaser 6120 Service Manual - Colored Spots
Image-Quality Problems
Phaser® 6120 Color Laser Printer Service Manual
4-33
Colored Spots
Typical Faulty Images
Troubleshooting Procedure
Step
Section
Check Item
Result
Action
1
Paper Size
Does the paper size loaded in the
tray match the selected paper size?
NO
Correct the paper size mismatch.
2
Imaging Unit Are the spots in a single color?
NO
Replace the Imaging Unit.
3
Are there scratches or lines evident
on the photo conductor surface?
YES
Replace the Imaging Unit.
4
Transfer Belt
Unit
Does the transfer belt have
fingerprints, dirt or oil on it?
YES
Wipe the surface clean of dirt with
a soft cloth.
5
Is the Transfer Belt scratched?
YES
Replace the Transfer Belt Unit.
6
Transfer
Roller
Is the Transfer Roller dirty or
scratched?
YES
Replace the Transfer Roller.
7
Paper path
Is there a foreign object in the paper
path?
YES
Remove the foreign object.
8
Fusing Unit
Is the Fusing Roller dirty or
scratched?
YES
Replace the Fusing Unit.
9
Have steps 1-7 eliminated the
problem?
NO
Replace the Problem Toner
Cartridge.
AA
AA
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Colored spots