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Confidential
4.4
Troubleshooting for Software Problems
End users can solve problems related to software, for instance, scanning is not possible from a
computer although scanning can be performed from the machine, as long as they follow the
User Check items. If the problem still cannot be solved, follow each procedure according to the
step number in the tables below.
4.4.1 Does not respond to operation from a computer
4.4.2 Cannot read data
<User Check>
• Check that the USB cable is not damaged.
• When using an interface switch, check that the correct machine is selected.
• Check the relevant section in the User's Guide.
• Check the driver settings.
• Reset the machine to the default settings. (Refer to the User's Guide.)
• Check that the AC adapter is connected correctly.
Step
Cause
Remedy
1
Program malfunction
Reinstall the latest firmware.
2
Connection failure of the front cover
sensor harness
Reconnect the front cover sensor harness.
3
Front cover sensor or top cover
sensor failure
Replace the cover switch ASSY.
4
Main PCB failure
Replace the main PCB ASSY.
<User Check>
• Check the relevant section in the User's Guide.
• Check that the AC adapter is connected correctly.
Step
Cause
Remedy
1
Connection failure of the front cover
sensor harness
Reconnect the front cover sensor harness.
2
Front cover sensor or top cover
sensor failure
Replace the cover switch ASSY.
3
First side or second side CIS unit
failure
Replace the first side or second side CIS
unit.
4
Main PCB failure
Replace the main PCB ASSY.