Ricoh Aficio Color 4006 Operating Instructions Manual page 147

If You cannot Make Copies as You Want
Problem
Copies appear dirty.
The reverse side of an original image
is copied.
A shadow is copied when copying a
pasted original.
Copies are too light.
Copy image is not clear.
The same copy area is dirty whenever
making copies.
Copies are blank or parts of the im-
age are not copied.
A moire pattern is produced on cop-
ies as shown in the illustration.
R R
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If You cannot Make Copies as You Want
Cause
The image density is too dark.
The exposure glass (platen glass) or
document feeder belt is dirty.
The image density is too dark.
The image density is too dark.
The original has a low contrast image.
The image density is too light.
Damp or rough grain paper is used
The original image type (Text/Photo)
is not selected properly.
The exposure glass (platen glass) or
document feeder belt is dirty.
The original is not set correctly.
An improper paper size is selected.
The selected reproduction ratio does
not match the paper size.
The Text mode is selected.
The line images of the original might
be overlapped each other.
Action
Adjust the image density.
see page 37.
Adjust the background density.
see page 96.
Clean them. see page 164.
Adjust the image density.
see page 37.
If you select Black & White Copy mode
or Single Color mode, place a black
paper in the backside of the original
and select Auto Image Density mode.
Lighten the background density.
see page 96.
Adjust the image density.
see page 37.
Adjust the background density.
see page 96.
Set the original in a different direction.
Put mending tape on the bound part.
Adjust the image density.
see page 37.
Use dry paper without rough grain.
Select the proper original image type.
see page 41.
Adjust the sharpness of the image
with the Soft/Sharp function.
see page 96.
Clean them. see page 164.
Set the originals correctly.
see page 29, 30 or 31.
Select the proper paper size.
Select the proper reproduction ratio.
Select Auto Text/Photo mode or Photo
mode. see page 41.
Place the original on the exposure
glass (platen glass) at a slight angle.
Adjust the sharpness of the image.
see page 96.