Xerox Phaser 4500, Service Manual, Page: 239 / 537

5-16 Phaser 4500 Service Manual
Print-Quality Troubleshooting
Light (Undertoned) Print
The overall image density is too light.
Initial Actions
■
Inspect the printer paper path for foreign items,
such as staples, paper clips, and paper scraps.
■
Check the installation of the Print Cartridge.
■
Check that the Print Cartridge ground contact
points (on the right side of the Print Cartridge
and in the Print Cartridge Right Side guide in
the printer) are clean.
■
Ensure that there are no obstructions in the
Laser path.
■
Ensure that draft mode is turned off.
■
Ensure the NVRAM Laser Power adjustment is set to the default, which is 4.
Light Prints Troubleshooting Procedure
Step Actions and Questions Yes No
1 1. Load fresh, dry paper.
2. Print a test print.
Does the image density meet
specifications?
Problem solved. Go to step 2.
2 1. Install a new Print Cartridge.
2. Print a test print.
Does the image density meet
specifications?
Problem solved. Go to step 3.
3 1. Remove the Print Cartridge.
2. Inspect the Metal Grounding
Contacts on the Print Cartridge
Right Side Guide.
Is the Metal Grounding Contact
intact and free of contamination?
Go to step 4. Reform or clean the
Metal Grounding
Contact, so it makes
better contact with the
drum shaft, or replace
the Print Cartridge
Right Side Guide
(page 8-58).
s4500-037