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Solution
PROBLEM SOLVING
7.17
Solving Print Quality Problems
• The paper may not meet paper specifications (for example,
the paper is too moist or too rough). See “Paper
Specifications” on page A.2.
• The transfer roller may be dirty. See “Cleaning the Inside”
on page 6.4.
• The paper path may need cleaning. See “Cleaning the
Inside”.
Toner specks
If faded areas, generally rounded, occur randomly on the
page:
• A single sheet of paper may be defective. Try reprinting the
job.
• The moisture content of the paper is uneven or the paper
has moist spots on its surface. Try a different kind or brand
of paper. See “Paper Specifications” on page A.2.
• The paper lot is bad. The manufacturing processes can
cause some areas to reject toner. Try a different kind or
brand of paper.
• The toner cartridge may be defective. See Repetitive vertical
defects” on page 7.18.
• If these steps do not correct the problems, contact a
service representative.
Dropouts
If black vertical streaks appear on the page:
• The photosensitive drum inside the toner cartridge has
probably been scratched. Install a new toner cartridge.
If white vertical streaks appear on the page:
• The surface of the LSU part inside the printer may be dirty.
Clean the LSU (see page 6.5).
Vertical lines
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