User guide
Table Of Contents
- Contents
 - Printer Features
 - Network Basics
 - Printing Basics
 - Print Quality
- Controlling the Quality of Your Prints
 - Solving Print-Quality Problems
- Light Lines or Streaks in One Color
 - Dark Lines, Smudges, or Streaks Through All Colors
 - Repeating Defects
 - Colors Align Incorrectly
 - Incomplete Fusing
 - Image Is Offset
 - Solid Fills Appear Mottled or Blotchy, Blacks Appear Blue
 - Poor Transparency Print Quality
 - All Colors Are Too Light or Too Dark
 - Grays Are Not Neutral
 - Colors Vary Between Computers
 - Colors Do Not Match
 - Printed Colors Do Not Match Monitor Colors
 - PANTONE Colors Do Not Match
 - Color Settings Not Applied
 - Print Area Is Not Centered on the Paper
 
 
 - Maintenance
 - Troubleshooting
 - User Safety
 - Index
 

Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer
4-6
Light Lines or Streaks in One Color
Problem
Solution
1. Open the front door.
2. Remove the waste cartridge.
3. Clean the laser window for the color affected with the laser window cleaner wand. See 
Cleaning the Laser Window on page 5-3.
Note: The laser window cleaner wand is located inside the front door. Insert the wand 
until the arrow aligns with the front plate of the printer.
4. Return the waste cartridge to the printer.
5. If the problem continues after cleaning the laser window, replace the imaging unit that 
corresponds to the color affected.
Thin, light or white lines appear in only one color.










