COPYRIGHT © 2005 CANON ELECTRONICS INC. CANON DR-2580C FIRST EDITION APR. 2005
5-13
CHAPTER 5 TROUBLESHOOTING
III. IMAGE
TROUBLESHOOTING
There are times when, depending on the type of image and settings, document reproducibility
becomes poor. In such case, the image may be improved by changing the settings.
1
No image is output (completely white, completely black, completely gray, mottled)
Cause/Faulty
location
Step Check
Item Result
Action
“Brightness”
setting
1
Is the “Brightness” setting ap-
propriate?
NO
Change the setting.
Also change “Contrast” if
necessary.
Reading glass
2
Is the reading glass clean?
NO
Clean it.
If necessary, clean the
roller too.
3
Is the shading plate clean?
NO
Clean it.
Shading plate
4
Does the reading unit (lower)
move when the power is turned
ON?
NO Check the mechanism
related to the movement
of the reading unit (lower).
Connection of
reading unit
5
Are the reading related cables
connected properly?
NO
Connect them properly.
Reading unit
6
Is the problem solved when the
reading unit is replaced?
YES End.
Control PCB
7
Is the problem solved when the
control PCB is replaced?
YES End.
Table 5-301
Summary of Contents for imageFORMULA DR-2580C
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