Patent ID: 8643860

Claim:
An image forming apparatus including a normal mode and an energy saving mode, comprising: a main controller configured to perform image processing in the normal mode and to stop operating in the energy saving mode; an energy saving controller configured to control the image forming apparatus in the energy saving mode; a nonvolatile storage unit configured to be connected to the main controller; a volatile storage unit configured to be connected to the main controller and the energy saving controller; and a network communication unit configured to be connected to the energy saving controller and to perform network communication, wherein the nonvolatile storage unit stores a MAC address with which the energy saving controller controls the network communication unit, the main controller writes the MAC address stored in the nonvolatile storage unit into the volatile storage unit at a time of startup of the image forming apparatus, and the energy saving controller controls the network communication unit in accordance with the MAC address that is written into the volatile storage unit by the main controller.