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COPYRIGHT © CANON ELECTRONICS INC. 2018 CANON DR-G2140/G2110/G2090 FIRST EDITION
CHAPTER 5 TROUBLESHOOTING
III. TROUBLESHOOTING LIST
The lists below give the major failures conditions and their causes. Refer to the next section
for details of the causes and the measures to be taken.
1. Operation Failures
Note: Major causes of each failure are marked “X”.
Table 5-301
2. Image Failures
Note: Major
causes of each failure are marked “X”.
Table 5-302
No.
Cause
Failure
System/
Soft-
ware
Hard-
ware
Connec-
tion
Dirt/dust
Docu-
ment
Settings
1
Power does not come
ON
X
X
2
No scanner is found
X
X
X
X
3
Scanner does not
start
X
X
X
4
Scanning does not
feed properly
X
X
X
X
5
Scanning speed is
slow
X
X
No.
Cause
Failure
System/
Soft-
ware
Hard-
ware
Connec-
tion
Dirt/dust
Docu-
ment
Settings
1
All black/all white/all
streaked
X
X
X
X
2
Too dark/too light
X
X
3
Black Borders
X
X
4
Image slanted
X
X
X
5
Streaks in image
X
X
6
Outer area disappear
X
X
7
Wrong image size
X
X
8
Text cannot be seen
X
X
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