Image forming apparatus with power-saving mode and image forming method

摘要

An image forming apparatus includes an engine (301) configured to perform image formation; an engine control unit (302) configured to control the engine (301); an apparatus control unit (101) configured to control the whole of the apparatus (1); a storage unit (110); and a state management unit (102) configured to set the apparatus (1) to a power-saving mode in which the apparatus control unit (101) and the storage unit (110) are supplied with power while the engine (301), and the engine control unit (302) are not supplied with power when a main power supply (400) is turned on. When the apparatus (1) is set to the power-saving mode, the apparatus control unit (101) reads out second engine information that represents a configuration of the engine (301) from the storage unit (110) and performs a start-up process on the apparatus control unit (101) based on the second engine information.