Apple LaserWriter 12/640 PS - Manual (Page 49)

Connecting the power and turning on the printer
Once you’ve connected the printer to your networks, you’re ready to start up
the printer. Follow these steps to make sure everything is working correctly.
1 Make sure the printer is turned off.
2 Plug in the printer.
Insert the socket end of the power cord into the recessed receptacle on the
back of the printer. Plug the other end into a grounded (three-hole) AC outlet.
Off position
On position
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