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Troubleshooting 59
✘ The PC Does Not Recognize the Scanner
(Connecting via USB 2.0)
The following are possible causes of the PC failing to recognize the scanner.
Check each possible cause.
Cause The scanner is not connected correctly.
Action Check the USB cable connections between the scanner and the
PC. (See “Connecting via USB” on p.21)
Cause The USB 2.0 interface board is not mounted on the PC
correctly.
Action Reseat the USB 2.0 interface board on the PC correctly referring
to the instruction manual for the USB 2.0 interface board. Also,
confirm whether the USB interface board is recognized by the
OS (Windows) you are using.
Cause The scanner is not on.
Action Refer to the previous section, “The Scanner Does Not Turn On,”
and check to see if the scanner is on. If the scanner is not on, shut
down the PC, then turn the scanner on first, and then the PC.
Cause The USB 2.0 interface board does not support the scanner.
Action Use a recommended USB 2.0 interface board. (See “USB 2.0
Interface Board” on p.18)
Cause The USB hub is not on.
Action Turn the USB hub on.