Xerox Phaser 6280, Service Manual

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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