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Canon imageFORMULA DR-2050C メンテナンス・マニュアル

Problem

The scanner does not support your USB interface.

Solution

This product is not guaranteed to operate with all types of USB

interfaces. Contact your local authorized Canon dealer or service

representative for more information. (See p. 15.)

Problem

The scanner does not support the USB cable.

Solution

Use the USB cable provided with the scanner.

Problem

The USB hub is not compatible with the scanner.

Solution

Remove the USB hub.

Slow Scanning Speed

The following problems might cause the scanning speed to be slow.

Problem

Other applications are running in the background on your

PC.

Solution

Quit all other applications that are running.

Problem

Resident applications, such as anti-virus software, are

draining memory resources.

Solution

Quit all resident applications.

Problem

Temporary files cannot be created in the TEMP folder, as

there is not enough free space on the hard disk.

Solution

Delete unwanted files on the hard disk to increase free space on

the hard disk.

Problem

The USB port you are using does not support Hi-Speed

USB 2.0.

Solution

Scanning speeds are lower if your computer's standard USB

interface is not compatible with Hi-Speed USB 2.0. (See p. 15.)

Use a computer that is equipped with USB that is compatible with

Hi-Speed USB 2.0 as standard.

Problem

The USB cable does not support Hi-Speed USB 2.0.

Solution

Use the USB cable provided with the scanner.

Problem

The USB hub does not support Hi-Speed USB 2.0.

Solution

Remove the USB hub.

Appendices