CHAPTER 5 TROUBLESHOOTING
2. No Scanner is Found
Note:
You should install the driver on the computer before connecting the scanner.
Cause/Faulty
Locations
Step
Check Item
Result
Action
Power
Supply
1 Is power supplied to the
machine?
NO
Perform “1. Power Does
Not Come ON”.
Connection of the
USB cable
2
Is the USB cable connected?
NO
Connect the connectors
correctly.
Computer and
interface card
3 Are the computer and
interface card compatible?
NO Use
compatible
equipment.
Table 5-402
3. Scanning Does Not Start
Note:
The “cover open” and “no document” error messages may be displayed and scanning
may not start due to sensor problems.
Cause/Faulty
Locations
Step
Check Item
Result
Action
System
1
Was the problem solved by
resetting the power of the
scanner or restarting the
computer?
YES Done.
Software
2
Was the problem solved by
reinstalling the scanner driver
or application?
YES Done.
Connection of the
connector (control
PCB)
3
Are the motor and sensor
connectors connected
correctly?
NO
Connect the connectors
correctly.
Drive transmission
system
4
Is the transmission system of
the motors normal?
Are parts such as gears and
belts normal?
NO
Attach the parts
correctly.
Replace the parts.
Motors
5
Is the operation normal when
you perform an operation
check with the service mode?
NO
Check the cable
connections. Replace
the motors.
Sensors
6
Is the operation normal when
you perform an operation
check with the service mode?
NO
Check the attachment
of sensors and sensor
levers. Check the
connections of sensor
cables.
Sub PCB
7
Was the problem solved by
replacing the sub PCB?
YES Done.
Control PCB
8
Was the problem solved by
replacing the control PCB?
YES Done.
Table 5-403
5-40
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CANON ELECTRONICS INC. 2011 CANON DR-M160 FIRST EDITION