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
4-7
Dark Lines, Smudges, or Streaks Through All Colors
Problem
Solution
1. Verify that the paper you are using is the correct type for the printer. See Supported Paper
and Media on page 3-3.
2. Verify that the paper is properly loaded in the tray, and the correct paper type is selected in
the
Paper Tray Setup menu. See Loading Paper on page 3-9.
If the problem continues, remove toner print smears:
1. On the control panel, select
Troubleshooting, select Print Quality Problems, and then
select
Remove Print Smears.
Several cleaning pages are printed.
2. Repeat Step 1 until no toner appears on the pages.
If the problem is not resolved by removing the toner print smears, follow these steps.
1. On the control panel, select
Troubleshooting, select Print Quality Problems, and then
select
Repeating Defects Page.
The Repeating Defects page prints with instructions for identifying defective units.
2. Replace the item(s) identified on the Repeating Defects page to correct the problem.
If the problem continues, replace the belt cleaner assembly or the accumulator belt.
Note: If the Transfer Roller is replaced, on the control panel, select
Information, select
Supplies Info, and then select Reset Transfer Roller Life.
Dark or light marks appear on the page in all colors and/or in non-printed areas.










