Canon CanoScan D646U User Manual page 81

chapter 7
Troubleshooting
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ScanGear CS-U does not launch.
Problem: ScanGear CS-U does not launch, the screen freezes, or
another software application launches.
Cause1: The scanner may not be connected correctly.
Solution: Make sure the scanner is properly connected to your
computer before you turn on the computer and start
Windows. If not, connect the scanner. Then restart your
computer.
Cause2: You may have chosen the wrong scanner source in your
software application.
Solution: Make sure you selected the correct scanner in the parent
software application. For details, see your software
application documentation for instructions.
Cause3: The scanner configuration file may have been changed.
Solution: Uninstall ScanGear CS-U ( p.19) then reinstall ScanGear
CS-U ( p.12).
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