image-quality Troubleshooting
Phaser® 3500 Laser Printer Service Manual
3-2
Image-Quality Problems Overview
Image-quality defects can be attributed to printer components, consumables, media, internal
software, external software applications, and environmental conditions. To successfully
troubleshoot image-quality problems, as many variables as possible must be eliminated.
The following guidelines should be used before troubleshooting an image-quality problem:
■ Use an unopened ream of approved media for evaluating image-quality problems
Note: See the approved media list, Media and Tray Specifications on page 6-9, for media
that has been tested and approved for use with the Phaser 3500 Laser Printer.
■ Generate the Control Panel (Internal) Test Print on page 3-4, and see if the image-
quality problem still exists
■ When analyzing a image-quality defect, first determine if the defect is repeating or
random. Repeating defects can often be associated with a particular component.
■ Inspect the surfaces of all rollers in the paper path for obvious defects.