US Patent 7366456 Fixing apparatus and image forming apparatus

An image forming apparatus includes a first heater that heats a heating member, a second heater that heats a support member, and a third heater that heats a facing member. The image forming apparatus further includes a fixing belt wound around between the heating member and the support member, and a facing member arranged so as to face the fixing belt. A paper is passed through a nip portion between the facing member and the fixing belt and a toner image is fixed on the paper by applying heat and pressure to the toner of the toner image. Only the first heater is energized during the fixing operation. All the three heaters are energized at the time of startup operation and during a standby state.