Ricoh 4506 User Manual
Page 164
What to Do if Something Goes Wrong
152
5
The same copy area is dirty
whenever making copies.
The exposure glass or docu-
ment feeder belt is dirty.
Copies are blank or parts of
the image are not copied.
The original is not set correct-
ly.
Set the originals correctly.
P.16 “Setting Originals on the
Exposure Glass”.
An improper paper size is se-
lected.
Select the proper paper size.
The selected reproduction ra-
tio does not match the paper
size.
Select the proper reproduc-
tion ratio.
A moire pattern is produced
on copies as shown in the il-
lustration.
Text mode is selected.
Select Auto Text/Photo mode
or Photo mode.
The line images of the original
might be overlapped each oth-
er.
Place the original on the expo-
sure glass at a slight angle.
Adjust the sharpness of the
image.
Color tone of copies is differ-
ent from that of originals.
The color balance is not set
properly.
Adjust the Color Balance.
P.103 “Color Balance Adjust-
ment”.
Perform the Auto Color Cali-
bration.
Color tone of copies is com-
pletely different from that of
originals.
Unsuitable color setting.
Perform Auto Color Calibra-
tion (A.C.C.).
If you cannot correct the prob-
lem by performing Auto
Color Calibration, contact
your service representative.
Letter parts and photo parts of
an original are not separated
correctly.
An original has screen letters
or low density letters.
Adjust the Auto Text/Photo
Sensitivity to a “Text” level.
An original has a high con-
trast photo.
Adjust the Auto Text/Photo
Sensitivity to a “Photo” level.
An original has a photo hav-
ing sequence thin lines with
regular thin spaces.
Color parts of an original are
copied in black in Auto Color
Select mode.
The original image contains
small or thin color parts.
Adjust the A.C.S. Sensitivity
to a “Full color” level.
Problem
Cause
Action
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