FIXING DEVICE WITH MECHANISM CAPABLE OF HEATING FIXING ROTARY BODY BY ELECTROMAGNETIC INDUCTION EFFECTIVELY AND IMAGE FORMING APPARATUS INCORPORATING SAME

摘要

A fixing device includes a heat generator including a first non-conductive portion having a first width in an axial direction of the heat generator and a second non-conductive portion spaced apart from the first non-conductive portion in a circumferential direction of the heat generator and having a second width in the axial direction of the heat generator that is smaller than the first width of the first non-conductive portion. The heat generator is movable between a first heating position where the first non-conductive portion is disposed opposite an exciting coil unit and a second heating position where the second non-conductive portion is disposed opposite the exciting coil unit.