
COPYRIGHT © CANON ELECTRONICS INC. 2018 CANON DR-G2140/G2110/G2090 FIRST EDITION
5-51
CHAPTER 5 TROUBLESHOOTING
5. Streaks on Image
If the reading glass surface is dirty, streaks appear on the scanned images in the feed direc-
tion. Dirt on the rollers may also be transferred to the documents.
On the other hand, white streaks appearing on the scanned images are caused by the exe-
cution of the shading correction while the inside of reading unit is dirty.
Cause/Faulty
Locations
Step
Check Item
Result
Action
Reading glasses
1
Are the reading glasses
clean?
NO
Clean the reading
glasses.
Replace the reading
glass if scratches are
found.
Roller
2
Are the surfaces clean?
NO
Clean or replace the
roller.
Feed path
3
Is the feed path clean?
NO
Clean the feed path.
Reading unit inside
4
Is the reading unit inside
clean?
NO
Clean or replace the
reading unit.
Table 5-506
6. Outer Areas of Image Disappear
When scanning a document with black or deep color outer areas, selecting the
“Auto-detec-
tion,
” the “Deskew” or the “Border Removal” may cause the outer areas to disappear from the
scanned image.
Cause/Faulty
Locations
Step
Check Item
Result
Action
Document
1
Is there any black or deep
color on the document
outer areas?
YES
Disable the functions
such as the
“Auto-detec-
tion
”.
Table 5-507