FIXING DEVICE, IMAGE FORMING APPARATUS, RECORDING MEDIUM RECORDING CONTROL PROGRAM FOR REALIZING FIXING DEVICE AND CONTROL METHOD FOR FIXING DEVICE

摘要

A fixing device is provided. A fixing device includes a heating section that has a heat source comprised of a ceramic heat generating element that generates heat by electric power supply and has a positive temperature coefficient property. Then, in the heating section, an applied voltage value by a voltage variable power source to the ceramic heat generating element is variably controlled by a control unit such that an input power value in the ceramic heat generating element is approximately constant.