Xerox Phaser 6280 - Background Contamination

5-46 Phaser 6280 Color Laser Printer Service Manual
Print-Quality Troubleshooting
Background Contamination
There is toner contamination on all or most of the page. The contamination
appears as a very light gray dusting.
Initial Actions
■ Check the paper transfer path.
■ Ensure there are no debris on the transfer path.
Troubleshooting Reference Table
Applicable Notes Example Print
■ Transfer Unit, PL4.1.1
■ Print Cartridge (C/M/Y/K),
PL5.1.18-21
■ MCU Board, PL9.1.20
■ Image Processor Board, PL9.1.27
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 1.Print a page including color
photograph. If not possible, perform
CMY20% Test Print: Service Mode
> Test Print > CMY 20% ESS.
2.Does the image quality improve?
Complete. Go to step 2.
2 1. Check the Print Cartridge (C/M/Y/K)
for damages.
2.Is the Print Cartridge damaged?
Go to step 3. Replace the
Print Cartridge
(
page 8-10).
3 1. Check the Transfer Unit.
2.Are there any damages on the
Transfer Unit surface?
Replace the
Transfer Unit
(
page 8-8).
Go to step 4.
4 1. Check the Transfer Unit for correct
installation. Reseat the Transfer Unit
(page 8-8).
2.Does the image quality improve?
Complete. Go to step 5.
Background Contamination