Xerox DocuMate 3640 User Manual page 23

Installation
5. Plug the square end of the USB cable into the output USB port on the back of the scanner.
If the plug does not attach easily, make sure that you are plugging it in correctly. Do not force the
plug into either connection.
6. Turn on the power switch, located on the back of the scanner to the left of the power port.
The status light comes on and flashes indicating that the scanner is receiving power.
Your computer recognizes that a scanner has been plugged into the USB port and automatically
loads the appropriate software to run the scanner.
If your computer is running Windows XP or Windows Vista, you will see a message similar to the
one below.
10 DocuMate 3640
User's Guide