Sharp AM-400 Online Manual page 19

Releasing the scanner
Before plugging in the power cord, pull the scanner release toward you to
release the scanner lock.
♦
Caution: Plugging in the power cord without releasing the scanner lock
may damage the machine.
If you need to move the machine:
♦
In the event that you need to move the machine to a new location,
disconnect the telephone line cord before unplugging the power cord. After
you have unplugged the power cord, push the scanner release back in to
lock the scanner.
♦
After moving, release the scanner lock first and then plug in the power cord.
Connect the telephone line last.
Installation
13