INDUCTION HEATING ROLLER APPARATUS AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an induction heating roller apparatus with improved heating function by strengthening the heating in a nip part formed by the heating roller and a pressure roller and an image forming apparatus provided with it. SOLUTION: The induction heating roller apparatus is provided with a coil bobbin CB containing an induction coil ICa and a non-circular part 12 in which the outer periphery is retreated inside a circular part 11 and a circular outline of the circular part and mainly supporting the induction coil ICa in the circular part 11 by being inserted inside the induction coil ICa, an induction coil apparatus IC operating in a static state, a heating roller HR formed as a cylinder and generating heat by induction current by being magnetically connected with the induction coil apparatus IC in a state with the induction coil apparatus IC inserted inside, the pressure roller PR installed to be brought into a pressurized contact with the heating roller HR in a position facing the circular part 11 of the coil bobbin CB in the induction coil apparatus IC and a high frequency power source HFS feeding high frequency power to the induction coil apparatus IC. COPYRIGHT: (C)2006,JPO&NCIPI