Xerox Phaser 6128MFP - Background Contamination

Phaser 6128MFP Service Manual 5-31
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
■ Erase LED Assy (PL4.1.8)
■ Imaging Unit (PL4.1.21)
■ Transfer Belt (PL6.1.7)
■ IP Board (PL10.6.6)
■ MCU Board (PL10.7.7)
■ LVPS Harness Assy (PL10.8.14)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Inspect the media path.
Are there obstructions in the media
path?
Clean the
paper path
(refer to
“Cleaning” on
page 7-2), then
go to step 2.
Go to step 3.
2 Is the image printed correctly? Complete Go to step 3.
3 Print the Windows test page after
printing the Demo page (Menu >
Information Pages > Demo Page,
or running Service Mode > Test
Print > Toner Pallet Check).
Is the image printed correctly?
Complete Go to step 4.
4 1. Open the Front Cover, and remove
the Imaging Unit.
2. Defeat the safety interlock switch.
Do the four erase LEDs light
correctly?
Go to step 7. Go to step 5.
Background Contamination