When You Cannot Make Clear Copies
This section describes likely causes of and possible solutions for unclear copies.
Problem Causes Solutions
Black or white streaks appear
on copies.
The original is dusty. Clean the original, and then try copying
again. Be particularly careful when
using the following types of original:
• Hand drawn or drawn on with
other forms of pencil or pen, such
as a plotter.
• Film, translucent paper, or other
originals that attract static
electricity.
• Very long originals.
Black or white streaks appear
on copies.
The exposure glass or platen
plate is dirty.
Clean the exposure glass or platen
plate. See
"Maintaining Your Machine",
About This Machine
.
The background is dirty. Image density is too dark. Adjust the image density setting. See
"Adjusting Copy Image Density", Copy
and Document Server Reference .
The background is dirty. Auto Image Density is not
selected.
On the control panel, select [Auto
Density].
Parts of images are not
printed.
The paper is damp. Use paper that has been stored in the
recommended temperature and
humidity condition.
For details about the
proper way to store it, see "Paper
Storage", About This Machine
.
Parts of images are not
copied.
The original is not set
correctly.
Set originals correctly. See "Placing
Originals", Copy and Document Server
Reference .
Parts of images are not
copied.
The correct paper size is not
selected.
Select the proper paper size.
Toner fusing is poor. The paper thickness is not
properly set.
Set the paper thickness again. See "Tray
Paper Settings", Network and System
Settings Reference .
2. Troubleshooting When Using the Copy/Document Server Function
26
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