Ricoh Pro Series Operating Instructions Manual page 21

Before You Begin
The main power indicator goes on.

After you switch the main power on, a screen may appear to indicate that the
machine is initializing. Do not switch the power off during this process. Initialization
takes about 13 minutes.

If the machine does not turn on even if you press the main power switch, open the
front left covers and make sure that the AC power switch is turned on. For details
about the AC power switch, see "Dos and Don'ts", About This Machine.
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