Problem Cause Solution
Colored lines appear. The exposure glass,
scanning glass, or ADF is
dirty.
Clean them. See page 534
"Maintaining Your Machine".
White lines appear. The exposure glass or
scanning glass is dirty.
Clean the exposure glass or scanning
glass. For details about how to clean
the machine, see page 534
"Maintaining Your Machine".
White lines appear. When is flashing, toner is
beginning to run out.
Add toner. For details about adding
toner, see page 522 "Adding toner".
Copies are blank. The original is not set
correctly.
Set the original correctly. For details
about how to set originals, see "Placing
Originals", Preparation.
A moire pattern is produced
on copies.
The original has a dot
pattern image or many lines.
Place the original on the exposure
glass at a slight angle.
Black spots appear on the
copy of a photographic
print.
Because of high humidity,
the photographic print has
stuck to the exposure glass.
• Place an OHP transparency on
the exposure glass, and then
place the print on the OHP
transparency.
• Place the print on the exposure
glass, and then place two or three
sheets of white paper on it. Leave
the ADF open when copying.
White stripes appear on the
OHP transparency.
Fragments of paper are
stuck to the OHP
transparency.
Use a dry cloth to wipe any paper
fragments off the back of the OHP
transparency.
11. Troubleshooting
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