Canon imagePRESS C1+ Reference Manual page 387

4
Follow the instructions that appear on the touch panel display and wait
until the main power is turned OFF, or restart the machine during the
shutdown process.
NOTE
For instructions on shutting down the machine, see "Shutting Down the Machine," on p. 1-24.
5
Press the main power switch to the "I" side. The main power switch is
located on the right side of the machine.
NOTE
For instructions on turning ON the machine, see "How to Turn ON the Main Power," on p. 1-18.
Device Management Settings
6
6-103