Ricoh aficio 480w Operating Instructions Manual page 83

Problem
The background on translu-
cent paper is dirty.
Streaks, scratches, or wrinkles
appear in areas of solid black.
Shadows appear on the cop-
ies.
Copies are blurred.
When copying on patched
originals, parts of the image
are blurred.
When making copies with
50% reduction ratio, the image
density becomes dark and im-
ages are blurred.
When the temperature and
humidity is low (below 10°C
and 15%) , image density is
uneven in dot patterns.
Causes
More than 50 copies are being
made of originals longer than
1189 mm (46.9") with solid
blocks of colour (2 mm × 900
mm (0.08" × 35.4") or larger.)
Copy paper has been changed
from plain to translucent pa-
per, or from translucent to
plain paper.
The original is two-sided, or
the image density setting is
too dark.
Continuous copies have been
made on small sized paper.
This may happen when the
originals are curled, folded or
creased.
When making copies with
50% reduction ratio, the image
density may become dark.
Originals with wrinkles are
used and the image density is
set too dark.
If You Cannot Make Clear Copies
Solutions
Select a proper paper thick-
ness for the copy paper. See
"Paper Thickness: Paper
Tray" and "Paper Thickness:
Paper Bypass", General Set-
tings Guide.
After switching from plain to
translucent paper, wait one
minute. After switching from
translucent to plain paper,
wait two minutes before mak-
ing copies.
Adjust the image density set-
ting. See p.28 "Adjusting
Copy Image Density".
Wait about two minutes, and
then try copying again.
Straighten curls in the origi-
nals.
Select "Sharp" in "Drawing"
under "Copy Quality" with
User Tools, and select "Draw-
ing"as the original type. See
p.85 "Copy Quality" and p.27
"Selecting Original Type Set-
ting".
Select "Sharp" in "Drawing"
under "Copy Quality" with
User Tools, and select "Draw-
ing"as the original type. See
p.85 "Copy Quality" and p.27
"Selecting Original Type Set-
ting"
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