Patent ID: 8170438

Claim:
An image forming apparatus comprising: an image forming unit configured to form an image on recording paper, wherein the image forming unit is capable of becoming a first power state and a second power state which uses less power than the first power state, and wherein the image forming unit operates in a first mode or a second mode in the first power state; a power control unit configured to control power supply to the image forming unit; and a signal output unit configured to output an activation control signal to the image forming unit, wherein in a case where the power control unit controls power supply to the image forming unit in order to change a power state of the image forming unit from the second power state to the first power state, if the signal output unit outputs the activation control signal to the image forming unit, the image forming unit operates in the first mode, and if the signal output unit does not output the activation control signal to the image forming unit, the image forming unit operates in the second mode.