Xerox Phaser 7100 Service Manual

Image Quality
Xerox Internal Use Only Phaser 7100 Service Manual 3-19
IQ-4 Vertical Bands, Voids, or Streaks (In Paper Feed Direction)
There are extremely light or completely white streaks in 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
• ROS Assembly (Laser Unit), PL 7.1.1
• Developer Housing Assembly (Y/ M/ C/ K), PL 8.1.5 - PL 8.1.8
• IBT Unit, PL 9.1.99
• MCU PWB, PL 12.1.15
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. Remove the Imaging Units (Y/ M/ C/ K) (REP 6.0
Imaging Unit (Y/ M/ C/ K) on page 4-121).
Check the Laser Unit window.
Is the Laser Unit window of a particular color (Y/
M/ C/ K) contaminated?
Clean the Laser Unit
window for the
applicable color.
Go to step 3.
3. Check the Laser beam path.
Is there any obstruction between the Laser Unit
and the Imaging Units (Y/ M/ C/ K)?
Check the vicinity of the Developer Housing
Assembly (Y/ M/ C/ K) Developer Roller Bottom
Cover for stuck items such as fibers, etc.
Remove the
obstruction.
Go to step 4.
Vertical Blank Lines

Xerox Phaser 7100 Specifications

General

Brand	Xerox
Model	Phaser 7100
Category	Printer
Language	English