How should I do when my computer or QuickScan Plus can not detect scanner?

Plustek Original FAQ Link

If the scanner is not detected by QuickScan Plus, it will ask you to connect scanner when you press software “Scan” button:

Check the USB cable connection between the PC and scanner (please connect directly to the PC and avoid using USB hub).

– Make sure the scanner is power on.

– Please try manually installing the software if the device driver was not installed properly. (For Windows OS)

1. Right-click Windows Start icon and go to Device Manager
2. In the Device Manager, right-click on this scanner under “Other devices” and select “Update Driver Software”
3. Click “Browse my computer”
4. Select the folder or CD/DVD-ROM drive that contains the scanner’s driver and manually run the “install.exe” file.