IMPORTANT

•If the scanner does not operate because of a system error, turn the scanner OFF and wait at least 10 seconds before turning it back ON. If errors continue to occur, reboot the scanner and computer.

•When scanning with configurations that use a large amount of the computer’s memory, scanning will be performed properly for the first scan. However, if a second scan is performed with the same configurations, an error may occur due to insufficient memory and scanning may not be possible. In such cases, restart the application you are using and change the configurations before scanning again.

■Slow Scanning Speed

If the scanning speed is slow, first confirm the following: Scanning may be slow if the USB interface does not support Hi-Speed USB 2.0.

✔ Does the PC’s USB interface support only Full-Speed USB 1.1?

✔ Is the USB cable you are using the one that was supplied with the scanner (Hi-Speed USB 2.0 compliant)?

✔ Is a USB 1.1-compliant device connected to the USB hub at the same time?

If this does not solve the problem, consider the following possible causes:

Cause

Other applications are running in the

 

background on your PC.

Solution

Quit all other applications that are running.

 

 

Cause

Resident applications, such as anti-virus

 

software, are draining memory resources.

Solution

Quit all resident applications.

 

 

Cause

Temporary files cannot be created in the

 

TEMP folder, as there is not enough free

 

space on the hard disk.

Solution

Delete unnecessary files on the hard disk to

 

increase free space.

 

 

Chapter 6 Practical Examples

■Documents Do Not Feed Properly

If a document does not feed properly, first confirm the following:

✔Are pages sticking together because of static electricity or another cause?

✔Are you attempting to scan a document with size, paper thickness or quality that is not supported by the scanner? (See “Documents” on p. 3-2.)

✔Are the feed rollers dirty?

✔Are the feed rollers worn out?

IMPORTANT

•Double feeding occurs when document pages stick together, and incompatible paper thickness or quality can cause paper jams. Check your documents carefully before loading.

•Replacement rollers can be purchased as consumables. If performance is not improved after cleaning the rollers, contact your local Canon dealer or service representative to purchase a Roller Replacement Kit, and replace the rollers (pickup, feed and retard rollers). (See “Replacing the Transport Rollers” on p. 5-7.)

If this does not solve the problem, consider the following possible problems and causes:

Problem

Documents do not feed.

Cause

The Continuous Manual Feed Mode is

 

enabled.

Solution

Set the Continuous Manual Feed Mode to

 

[OFF] from the User Mode. (See “Continuous

 

Manual Feeding Mode Setting” on p. 3-11.)

 

 

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