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Slow scanning speed, P.5-3, Documents do not feed properly – Canon DR-4010C User Manual

Page 81

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Chapter 5

Troubleshooting

5-3

IMPORTANT

• If documents are not scanned normally even if the scanner setup is OK, a probable cause is

that the scanner driver or application software is not running correctly. Re-install the

scanner driver or application software.

• When system errors result in the scanner not functioning at all, turn OFF the scanner and

wait at least ten seconds before turning it ON again. If the error continues to occur, restart

the computer.

• When scanning continues, make sure that the last document scanned was scanned

correctly.

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. Use a computer that is equipped with USB that is

compatible with Hi-Speed USB 2.0 as standard.

(See “2-2 Installation Requirements,”

on p. 2-2.)

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.

Documents Do Not Feed Properly

The following are possible causes of a document failing to feed properly. Check each possible

cause.

Problem

Static electricity, etc., is causing the pages of the document to stick together,

and they cannot be separated correctly by the scanner.

Solution

Before you place your document, thoroughly fan the stack of papers.

(See “3-3

Placing Documents,” on p. 3-5.)