Streaks In Image; Image Slanted - Canon imageFORMULA DR-M160 Service Manual

3. Streaks in Image

Streaks in the feeding direction may appear in the image due to dirt on the reading glass.
Dirt on the feeding 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
Locations
Reading glass
Roller
Feed Unit
CIS unit
Light Adjustment

4. Image Slanted

If the document is fed at an angle, the image will become slanted.
Cause/Faulty
Locations
Placing documents
Setup of "Skew
correction"
Feeding documents
COPYRIGHT © CANON ELECTRONICS INC. 2011
Step Check Item
1 Is the reading glass clean?
2 Is the surface clean?
3 Is the feed path clean?
4 Is the inside of the CIS unit
clean?
5 Have you executed Light
Adjustment?
Table 5-504
Ste Check Item
p
1 Is the document
properly?
2 Are the document guides
adjusted to fit the document
width?
3 Was "Skew correction" set?
4 Are documents fed straight?
Table 5-505
CANON DR-M160 FIRST EDITION
CHAPTER 5 TROUBLESHOOTING
Result
NO Clean it.
Replace
guide (reading glass) if
it is damaged.
NO Clean or replace it.
NO Clean it.
NO Clean or replace the
reading unit.
NO Execute the adjustment.
Result
placed NO Place properly.
NO Correct the position.
NO Set it.
You can correct the
slant of an image using
image processing.
NO Perform the checks in
"IV. RESOLVING
MALFUNCTIONS,
4.The Document Does
Not Feed Properly".
Action
the reading
Action
5-45