US Patent 7366442 Fixing device

A fixing device is provided with a fixing roller and a pressure roller that presses against the fixing roller, and is configured such that an endless belt that is wound around a plurality of belt support rollers presses against the fixing roller and the fixing roller is heated via the endless belt by heat from a heating means mounted inside at least one of the plurality of belt support rollers, wherein the pressure roller is configured to be capable of relatively pressing against and moving apart from the fixing roller and the endless belt is configured to be capable of relatively pressing against and moving apart from the fixing roller.