Epson Pro Mac ES-1200C - Manual (Page 6)

6. Connect the power cable to the power inlet on the rear of
the scanner and the other end into an appropriately
grounded outlet as shown below.
If the scanner comes on when you plug it in, turn it off by
pressing the OPERATE button.
Warning:
Whenever you turn off the scanner, wait at least 20 seconds
before turning it back on. Rapidly turning it on and off can
damage it.
3