Canon 0433B002 User Manual - Page 72

The PC Does Not Recognize the Scanner, Scanning Is Slow

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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 Remedy The scanner is not connected correctly. Check the USB cable connections between the scanner and the PC. (See p. 21.) Cause Remedy The USB 2.0 interface card is not inserted in the PC correctly. 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 Remedy The scanner is not ON. Refer to "The Scanner Does Not Turn On," on p. 67 and make sure that the scanner is turned ON. If the scanner is not turned ON, turn it ON. (See p. 22.) Cause The USB 2.0 interface card does not support the scanner. Remedy Use the recommended USB 2.0 interface card. (See p. 19.) Cause The scanner does not support the USB cable. Remedy Use the USB cable provided with the scanner. (See p. 21.) Cause The scanner does not support the USB HUB. Remedy Remove the USB HUB to use the scanner. (See p. 21.) Scanning Is Slow The following problems might cause the scanner to be slow. Try the solutions according to the problem. 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. 19.) 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. 21.) Cause Remedy The USB HUB does not support Hi-Speed 2.0. Remove the HUB or replace it with one that supports HI-Speed 2.0. (See p. 21.) 68 Troubleshooting

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68
Troubleshooting
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. 21.)
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. 67 and make
sure that the scanner is turned ON. If the scanner is not turned
ON, turn it ON. (See p. 22.)
Cause
The USB 2.0 interface card does not support the scanner.
Remedy
Use the recommended USB 2.0 interface card. (See p. 19.)
Cause
The scanner does not support the USB cable.
Remedy
Use the USB cable provided with the scanner. (See p. 21.)
Cause
The scanner does not support the USB HUB.
Remedy
Remove the USB HUB to use the scanner. (See p. 21.)
Scanning Is Slow
The following problems might cause the scanner to be slow. Try the solutions
according to the problem.
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. 19.)
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. 21.)
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. 21.)