Scanner Does Not Feed Properly - Canon imageFORMULA DR-M160 Service Manual

4. Scanner Does Not Feed Properly

Note: A "paper jam" or "double-feed" error message may be displayed due to a sensor problem.
Cause/Faulty
Locations
Document
Placing documents
Rollers
Parts in feed path
Drive transmission
system
Motors
Sensors
Sub PCB
Ultrasonic drive PCB
Control PCB
COPYRIGHT © CANON ELECTRONICS INC. 2011
Step Check Item
1 Specified document?
(thickness, size, fold or curl)
2 Are documents
together?
3 Is the position
document guide correct?
4 Do you use the extension
support?
5 Are the rollers
correctly?
6 Are they dirty or deformed?
7 Parts touching
installed properly? (no float,
slant or gaps)
8 Is the surface
documents
scratches or burrs)
9 Does an abnormal
occur while feeding?
Are any of
damaged or the belts loose?
10 Is the operation normal when
you perform an operation
check with the service mode?
11 Is the operation normal when
you perform an operation
check with the service mode?
12 Was the problem solved by
replacing the PCB?
13 Was the problem solved by
replacing the control PCB?
Table 5-404
CANON DR-M160 FIRST EDITION
CHAPTER 5 TROUBLESHOOTING
Result
NO
stuck YES
of the NO
NO
attached NO
NO
documents NO
touching NO
smooth? (No
noise YES
the gears
NO
NO
YES
YES
Action
Use documents
compliant with
specified.
Fan the documents
well.
Correct the position.
Use the extension
support depending on
the document.
Attach the rollers
correctly.
Clean or replace the
rollers.
Attach the parts
correctly.
Replace inferior parts.
Attach the parts
correctly.
Replace inferior parts.
Check the cable
connections.
Replace the motors.
Check the attachment
of sensors and sensor
levers. Check
connections of sensor
cables.
Done.
Done.
5-41
the
the