10VISIONEER ONETOUCH 9120 USB SCANNER INSTALLATION GUIDE
3.Plug one end of the USB cable into an available USB 1.1 or USB 2.0 port on the computer.
4.Plug the other end of the USB cable into the scanner’s USB port.
USB
If the plug does not attach easily, make sure that you are plugging it in correctly. Do not force the plug into the connection.
Some computers have keyboards with USB ports. You can plug the cable into the keyboard instead of the USB port on the computer.
5.Plug the power adapter cable into the power jack on the back of the scanner and then plug the power adapter into an AC (wall) outlet.
The following diagram shows the scanner connected to a computer.