HP Deskjet 842c Printer - Manual (Page 6)

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Step 3: Plug in the power
1 Leave the computer and the printer turned off.
2 Lift the cable access door on the back of the printer.
3 Plug the power adapter cord firmly into the connector on the
back of the printer.
4 Plug the appropriate end of the power cord into the power
adapter.
5 Plug the other end of the power cord into an electrical outlet.
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4
5
Note: Always use the Power button on the front of the
printer to turn the printer on and off. Using a power strip,
surge protector or a wall outlet switch to turn the printer on
and off may cause premature failure.