Patent ID: 7859693

Claim:
An image forming apparatus having a power save mode and a normal mode, the image forming apparatus comprising: an image forming portion that outputs an image corresponding to data received from an external device being located outside of the image forming apparatus; a controller that controls the image forming portion to output the received data after a period of transition from the power save mode to the normal mode, the controller including a processor, the processor being in an off-state in the power save mode and being in an on-state in the normal mode to control the image forming portion; and a communication interface that receives the data from the external device and that controls a speed for receiving the data during the period of transition, wherein, in the power save mode, the processor is in the off state and the communication interface is active, the communication interface receives the data and controls the speed for receiving the data during the period of transition, and a period when the processor is in the off-state, the controller further, before going into an off-state, sets information in the communication interface for controlling the speed for receiving the data, and the communication interface further controls the speed for receiving the data based on the information set by the controller.