Uneven Density In Scan Direction (Cd) - Xerox Phaser 6120 Service Manual

Uneven Density in Scan Direction (CD)

Typical Faulty Images
Troubleshooting Procedure
Step Section
1 Imaging Unit Are there scratches or lines evident
on the photo conductor surface?
2 Is the outside of the imaging unit
dirty?
3 Transfer Belt Check the mounting shafts on the
Unit transfer belt assembly to ensure the
assembly is fully seated and installed
correctly.
4 Does the transfer belt have
fingerprints, dirt or oil on it?
5 Is the Transfer Belt scratched?
6 Is the terminal dirty?
7
8 Have steps 1-7 eliminated the
problem?
Phaser® 6120 Color Laser Printer Service Manual
4036fs4046c0
Check Item Result
YES
YES
NO
YES
YES
YES
NO
4-27
Image-Quality Problems
4036fs4047c0
Action
Replace the Imaging Unit.
Clean.
Check or correct contact.
Wipe the surface clean of dirt with
a soft cloth.
Replace the Transfer Belt Unit.
Clean.
Replace the problem Toner
Cartridge.
Replace High Voltage Unit.