An image forming apparatus, includes: a fixation device comprising a plurality of heaters; and a control unit which performs energization control for the plurality of heaters, wherein any one of at least three priorities which are first, second and third priorities for energizing the plurality of heaters so that power consumptions of the heaters does not exceed a predetermined total power consumption is given to each of the plurality of heaters in response to an operation state of the image forming apparatus, and the control unit performs the energization control for the heaters to which the first priority and the second priority are given when the image forming apparatus is in the operation state, does not energize the heater to which the third priority is given while the heater to which the second priority is given is energized, and performs the energization control for the heater to which the third priority is given while the heater to which the second priority is given is not energized.