The PC Does Not Recognize the Scanner

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

Cause

The scanner is not connected correctly.

Remedy

Check the USB cable connections between the scanner and the

 

PC. (See p. 22.)

 

 

Cause

The USB 2.0 interface card is not inserted in the PC

 

correctly.

Remedy

Reseat the USB 2.0 interface card in the PC correctly, referring to

 

the instruction manual for the USB 2.0 interface card. Also,

 

confirm whether the USB interface card is recognized by the

 

operating system you are using.

 

 

Cause

The scanner is not ON.

Remedy

Refer to “The Scanner Does Not Turn On,” on p. 57 and make

 

sure that the scanner is turned ON. If the scanner is not turned

 

ON, turn it ON. (See p. 23.)

 

 

Cause

The USB 2.0 interface card does not support the scanner.

Remedy

Use the recommended USB 2.0 interface card. (See p. 15.)

 

 

Cause

The scanner does not support the USB cable.

Remedy

Use the USB cable provided with the scanner. (See p. 22.)

 

 

Cause

The scanner does not support the USB hub.

Remedy

Remove the USB hub to use the scanner. (See p. 22.)

 

 

Scanning Is Slow

The following problems may affect the scanning speed.

Cause

The USB 2.0 interface card does not support Hi-Speed 2.0.

Remedy

Use the recommended USB 2.0 interface card. (See p. 15.)

 

 

Cause

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

Remedy

Use the USB cable provided with the scanner. (See p. 22.)

 

 

Cause

The USB hub does not support Hi-Speed 2.0.

Remedy

Remove the hub or replace it with one that supports

 

Hi-Speed 2.0. (See p. 22.)

 

 

58Troubleshooting