Microtek ScanMaker 9800XL Installing And Getting Started page 10

5. Connect the power cord to your scanner.
Plug the power cord into the back of the scanner, and plug the other end into a
power source (power surge protector highly recommended).
6. Turn the scanner's power switch to "On", and wait for the green light on the
scanner's front panel to stop blinking and stay on steady.
7. Turn on your computer; the system will detect the scanner automatically.