Ricoh Pro C7200S Operator's Manual page 474

11. Troubleshooting
Problem
Colored lines appear.
White lines appear.
White lines appear.
Copies are blank.
A moire pattern is produced
on copies.
Black spots appear on the
copy of a photographic
print.
White stripes appear on the
OHP transparency.
472
Cause
The exposure glass,
scanning glass, or ADF is
dirty.
The exposure glass or
scanning glass is dirty.
When is flashing, toner is
beginning to run out.
The original is not set
correctly.
The original has a dot
pattern image or many lines.
Because of high humidity,
the photographic print has
stuck to the exposure glass.
Fragments of paper are
stuck to the OHP
transparency.
Solution
Clean them. See page 534
"Maintaining Your Machine".
Clean the exposure glass or scanning
glass. For details about how to clean
the machine, see page 534
"Maintaining Your Machine".
Add toner. For details about adding
toner, see page 522 "Adding toner".
Set the original correctly. For details
about how to set originals, see "Placing
Originals", Preparation.
Place the original on the exposure
glass at a slight angle.
• 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.
Use a dry cloth to wipe any paper
fragments off the back of the OHP
transparency.