Xerox Phaser 7100

Image Quality
Phaser 7100 Service Manual Xerox Internal Use Only3-22
IQ-5 Horizontal Bands, Voids, or Streaks
There are extremely light or completely white streaks perpendicular to the paper feed direction on the
image.
Initial Action
• Check the paper transfer path is free of paper dust and debris.
Troubleshooting Reference
Applicable Parts Example Print
• Transfer Roller (2nd BTR), PL 4.3.18
• Imaging Unit (Y/ M/ C), PL 6.1.1
• Imaging Unit (K), PL 6.1.4
• Developer Housing Assembly (Y/ M/ C/ K), PL 8.1.5 - PL 8.1.8
• IBT Unit, PL 9.1.99
• HVPS2 PWB, PL 12.1.2
• HVPS1 PWB, PL 12.2.15
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check for the color that is causing the problem.
Obtain a sample for the color problem or perform
color print.
Is the problem only with a particular color?
Go to step 2.
Take action only for
the applicable color.
Go to step 2.
Take action without
color restriction.
2. Check the Imaging Unit.
Remove the Imaging Units (Y/ M/ C/ K) (REP 6.0
Imaging Unit (Y/ M/ C/ K) on page 4-121).
Is the Imaging Unit (Y/ M/ C/ K) installed
properly, with no deformation and
contamination at the contact points and it is in
contact with the left and right Guides?
Go to step 3. Inspect and clean the
contact points.
Reinstall the Imaging
Units (Y/ M/ C/ K) (REP
6.0 Imaging Unit (Y/
M/ C/ K) on
page 4-121).
Horizontal Band, Void, or Streaks