Patent ID: 8786886

Claim:
An image forming apparatus capable of controlling an image forming unit and operating in any one of a plurality of power modes including a first power mode and a second power mode which consumes less power than the first power mode, the image forming apparatus comprising: a power switch; a setting unit configured to set a setting for rebooting and shifting to the second power mode when the power switch is turned off; a control unit configured to, when the power switch is turned off, turn off the image forming apparatus in a case that the setting is not set by the setting unit, and reboot the image forming apparatus in a case that the setting is set by the setting unit; an activation unit configured to, when the power switch is turned on or the image forming apparatus is rebooted, activate the image forming apparatus; an adjustment unit configured to, when the activation unit activates the image forming apparatus, adjust the image forming unit in a case that the setting is not set by the setting unit, and does not adjust the image forming unit in a case that the setting is set by the setting unit; and a shift unit configured to, when the activation unit completes the activation of the image forming apparatus, shift the image forming apparatus to the first power mode in a case that the setting is not set by the setting unit, and shift the image forming apparatus to the second power mode in a case that the setting is set by the setting unit.