5-36
COPYRIGHT © CANON ELECTRONICS INC. 2008
CANON DR-X10C FIRST EDITION
CHAPTER 5 TROUBLESHOOTING
5. Streaks on Image
If the reading glass surface is dirty, streaks appear on the scanned images in the feed direction.
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
execution of the shading correction while the reading unit inside is dirty.
Cause/faulty
location
Step Check
item Result
Action
Reading glasses
1
Are the reading glasses
clean?
NO
Clean the reading
glasses.
Replace the reading
sensor cover if
scratches are found.
Roller
2
Are the surfaces clean?
NO
Clean or replace the
roller.
Feed unit
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 sensor cover or
CIS unit.
Table 5-606
6. Text Invisible
When the background includes colors or patterns, text may be hidden by the background
when scanning in black and white mode. A special mode called "Advanced Text Enhancement"
exists to solve this problem.
Note:
The problem may not be fixed, depending on the type of document.
Cause/faulty
location
Step Check
item Result
Action
1
Is the problem solved when
the “Color” or “Grayscale”
setting is changed?
YES End.
“Mode” setting
2
Is the problem solved when
the setting of a special mode
such as the “Advanced Text
Enhancement” is changed?
YES End.
“Brightness” setting
3
Is the problem solved when
the “Brightness” setting is
changed?
YES End.
Table 5-607