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Common Problems and Solutions
This section provides recommended solutions to common problems.
If you have a problem that is not solved by the following, contact your local authorized Canon dealer.
Problem 1
The scanner does not turn ON.
Solutions
(1) The scanner remains OFF while the feed tray is closed. When you open the feed tray, the scanner turns ON automatically.
(2) If the scanner is connected to the computer via a USB hub, try removing the hub and connecting directly to the computer.
Problem 2
The scanner is not recognized.
Solutions
(1) Confirm that the scanner is properly connected to the computer with a USB cable.
(2) Confirm that the scanner is turned ON. See the previous problem (1) if the scanner does not turn ON.
(3) The computer’s USB interface may not support the scanner. The scanner cannot be guaranteed to work with all USB interfaces.
(4) Confirm that the supplied USB cable is used to connect the scanner to the computer. The scanner cannot be guaranteed to work
with all available USB cables.
(5) When the Auto Start switch on the scanner is set to ON, you can only scan with the built-in application, CaptureOnTouch Lite. In
this case, scanning from applications on the computer is disabled.
(6) If “?”, “!”, or “x” icons appear for the scanner in Windows Device Manager, delete the scanner in Device Manager and reinstall
the scanner driver.
Problem 3
CaptureOnTouch Lite does not start.
Solutions
(1) If the Auto Start switch on the scanner is set to OFF, the built-in application, CaptureOnTouch Lite, does not start. Close the feed
tray to turn OFF the scanner, and set the Auto Start switch to ON.
(2) CaptureOnTouch Lite does not start automatically in Windows 2000. Open the [ONTOUCHLITE] drive under [My Computer] in
Windows Explorer, and double-click
(ONTOUCH.exe). Depending on settings for your operating system, CaptureOnTouch
Lite may not start automatically in Windows Vista and Windows XP. Perform the same procedure as above to start
CaptureOnTouch Lite in this case.
(3) If access to USB devices is blocked by security software, you may not be able to use CaptureOnTouch Lite.
Problem 4
The auto play screen appears when the scanner is connected, but you cannot scan with CaptureOnTouch.
Solutions
When the Auto Start switch on the scanner is set to ON, you can only scan with the built-in application, CaptureOnTouch Lite. Close
the feed tray to turn OFF the scanner, and set the Auto Start switch to OFF.
