COPYRIGHT © CANON ELECTRONICS INC. 2011
CANON P-215 FIRST EDITION
5-25
CHAPTER 5 TROUBLESHOOTING
3. Streaks in Image
Streaks in the feeding direction may appear in the image due to dirt on the reading glass. Dirt
on the separation pad or rollers may also be transferred to the document.
When white streaks appear in the image, this is due to shading correction being performed
when the reading glass is dirty.
Cause/Faulty
Location
Step Check
Item
Result Action
Reading glass
1
Is the reading glass clean?
NO
Clean the reading
glass.
Replace the reading
cover (reading glass) if
it is damaged.
Roller
2
Is the surface clean?
NO
Clean or replace it.
Feed Path
3
Is the feed path clean?
NO
Clean it.
CIS unit
4
Is the inside of the CIS unit
clean?
NO
Clean or replace the
reading unit.
Light Adjustment
5
Have you executed Light
Adjustment
NO Execute Light Ad-
justment
Table 5-504
4. Image Slanted
If the document is fed at an angle, the image will become slanted.
Cause/Faulty
Location
Step Check
Item
Result Action
1
Is the document set prop-
erly?
NO
Set properly.
Setting documents
2
Are the document guides
adjusted to fit the docu-
ment width?
NO
Correct the position.
Setup of “Skew
correction”
3 Was “Skew correction”
set?
NO
Set it.
You can correct the
slant of an image using
image processing.
Feeding documents
4 Are documents fed
straight?
NO
Perform the checks in
“III. OPERATION
TROUBLESHOOTING
4. Scanner does not
feed properly”.
Table 5-505
