Canon CanoScan N650U Getting Started page 16

• The scanner is powered directly by the USB port. The USB port
must provide a power supply of 500 mA. If you plug the
scanner into the USB port on a keyboard or other USB device,
the scanner may not be properly detected by the computer.
Attach the scanner directly to a USB port on the computer or
to a 500 mA self-powered USB hub.
• The scanner does not have a power switch. The power is activated
as soon as the computer is turned on.
This concludes the connection procedure. Do not turn on your computer yet.
Before you turn it on, you must perform the steps outlined in 2. Installing
the Driver Software, starting on the next page.
16
N650U/N656U/N1220U Getting Started