Iq-3 Black Print - Xerox Phaser 7100 Service Manual

IQ-3 Black Print

Part of the image or the entire image is black.
Initial Action
• Check the paper transfer path is free of paper dust and debris.
Troubleshooting Reference
Applicable Parts
• Imaging Unit (Y/ M/ C), PL 6.1.1
• Imaging Unit (K), PL 6.1.4
• ROS Assembly (Laser Unit), PL 7.1.1
• MCU PWB, PL 12.1.15
• HVPS1 PWB, PL 12.2.15
Troubleshooting Procedure
Step Actions and Questions
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?
2. Check the Imaging Units (Y/ M/ C/ K).
Are the Imaging Units (Y/ M/ C/ K) installed
properly, with no deformation and
contamination at the contact points and they
are in contact with the left and right Guides?
3. For color, switch the Imaging Unit (Y/ M/ C).
Does the problematic image appear in the same
color as it did so far?
Xerox Internal Use Only
Example Print
Yes
Go to step 2.
Take action only for
the applicable color.
Go to step 3.
Go to step 4.
Phaser 7100 Service Manual
Image Quality
Black Print
No
Go to step 2.
Take action without
color restriction.
Inspect and clean the
contact points.
Reinstall the Imaging
Units (REP 6.0
Imaging Unit (Y/ M/ C/
K) on page 4-121).
Replace the Imaging
Unit (REP 6.0 Imaging
Unit (Y/ M/ C/ K) on
page 4-121) of the
color that is causing
the problem.
3-17