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COPYRIGHT © 2006 CANON ELECTRONICS INC. CANON DR-1210C FIRST EDITION FEB. 2006
CHAPTER 5 TROUBLESHOOTING
2. Too Dark/Too Light
Image does not look appropriate due to improper brightness.
Cause/
Faulty location
Step Check
item Result
Action
“Brightness” setting
1
Is the “Brightness” properly
set?
The brightness should be
set to “Auto” in ordinary
case but may be required to
change according to the
type of document.
NO
Change the setting.
Adjust the “Contrast” in
addition if necessary.
Dark background
document
2
Is the “Advanced Text En-
hancement” selected?
NO Select.
Dark background is
eliminated and the
scanned image looks
better.
Table 5-402
3. Black Borders Around Image
Black borders appear around the images.
Note, however, that borders having a thickness of about 1 mm are within the specifications,
so they are not a failure.
Cause/Faulty
location
Step Check
item Result
Action
“Page Size” setting
1
Is the “Page Size” properly
set?
NO
Change the setting.
Document setting
2
Is the document set at the
correct position?
NO
Set at the correct posi-
tion.
Setting of
“Auto-detection” for
paper size or
“Border Removal”
3
Is “Auto-detection” or “Bor-
der Removal” set?
NO Set.
Black border can be
removed by image
processing.
Table 5-403