3. Troubleshooting

This section describes the possible problems that might occur during use of the scanner and how to solve them.

The Scanner Does Not Turn ON ......................................

P. 123

The Scanner Is Not Recognized

 

(Connecting via USB) .......................................................

P. 123

The PC Does Not Recognize the Scanner

 

(Connecting via SCSI) ......................................................

P. 124

Scanning Is Not Performed..............................................

P. 126

Slow Scanning Speed (Connecting via USB).................

P. 126

Documents Do Not Feed Properly...................................

P. 127

Saved Image Files Do Not Open......................................

P. 128

Scanning Results Are Not as Expected..........................

P. 129

If, after consulting this section, you still cannot resolve the problem, contact your local authorized Canon dealer or your service representative.

The Scanner Does Not Turn ON

Check the following if the scanner does not turn on:

Is the power cord connected correctly?

Is the power cord inserted into the power outlet?

For details on connecting the power cord, see “Step 4. Connecting the Scanner to Your PC,” in the Easy Start Guide.

The Scanner Is Not Recognized (Connecting via USB)

The following are possible causes of the PC failing to recognize the scanner. Check each possible cause.

Problem

The scanner is not correctly connected.

Solution

Make sure that the scanner and the computer are correctly

 

connected with the USB cable. (See “Step 4. Connecting the

 

Scanner to Your PC,” in the Easy Start Guide.)

 

 

Problem

The scanner power is switched OFF.

Solution

Make sure that the scanner is switched ON. If the scanner is OFF,

 

turn the scanner ON. (See “Step 4. Connecting the Scanner to

 

Your PC,” in the Easy Start Guide.)

 

 

Chapter 4

Appendices 123