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Troubleshooting
This chapter describes the problems that might occur in the CR-L1, and how to
remedy them.
When the Scanner Is Not Recognized
The following causes and remedies describe why your computer may not
recognize the scanner.
Cause
The Scanning Utility is not installed.
Remedy
Install the Scanning Utility before connecting the scanner to the
computer. (See "Setting Up the Scanner," on p. 4.)
Cause
The scanner is not correctly connected to the computer.
Remedy
Connect the scanner to the computer correctly. (See "Connecting
the Scanner to a Computer," on p. 6.)
Cause
The USB interface provided as standard with your computer is
not compatible with the scanner.
Remedy
Not all USB interfaces provided as standard with personal
computers are guaranteed. Contact your local authorized Canon
dealer for more detailed information. (See "Checking Your
Operating Environment," on p. 5.)
Cause
USB cable is not compatible with the scanner.
Remedy
Use the USB cable provided with the scanner. (See "Checking Your
Operating Environment," on p. 5.)
Cause
USB hub is not compatible with the scanner.
Remedy
Remove the USB hub to use the scanner. (See "Checking Your
Operating Environment," on p. 5.)
Clearing Paper Jams
If paper has jammed, open the Maintenance Cover and remove the jammed
paper.
IMPORTANT
Do not attempt to pull the jammed paper upwards or backwards against the feeding
direction. Doing so can damage the internal parts of the scanner.
CAUTION
• Be careful when you clear a paper jam. You may be injured unexpectedly. For
example, the paper edges may cut your fingers, or the document may be
damaged.
• Remove all jammed sheets of paper. Paper scraps left inside the scanner may
cause a paper jam or malfunction.
A
Hook your finger around the open lever and open the Maintenance
Cover.
B
While lowering the down the OPEN lever, open the reading unit.
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