White Portion Of Print Is Colored - Xerox Phaser 840 Service Manual

White portion of print is colored

Table 3-12 White portion of print is colored
Step Question and Actions
Clean the wiper blade of the drum maintenance drawer. If necessary, replace the
1
maintenance kit.
Clean the rapid release guide.
2
The paper preheater may be contaminated with ink. Clean for ink smears using
3
the front panel Troubleshooting function Remove Ink Smears.
Run diagnostics to ensure that printer temperatures are in tolerance. Ensure that
4
the drum heater is properly positioned. Print using a smoother, laser quality
paper. Some recycled paper brands may be too rough.
Dark rectangular marks on transparency film can be caused by an accumulation
5
of paper dust and oil on the feed rollers. Run 2 or 3 sheets of blank paper
through the printer to clean the rollers or manually clean the rollers.
Replace the Power Control Board
6
Replace the Main Board
7
Replacd the Printhead
8
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Phaser 840/850/860/8200 Color Printer - Service Manual
Color on a print where no color should be
printed is often called a latent image. A
latent image remains on the drum when it
should have been transferred to its sheet of
paper. An insufficient amount of oil on the
drum, provided by a dirty, defective or old
maintenance drawer may be the problem.
See SB439 & SB445.
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