IMAGE HEATING DEVICE AND IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To eliminate the problem caused by the temperature rising of a paper non-passing part by preventing or mitigating the temperature rising of the paper non-passing part of an image heating device in the image heating device of an electromagnetic induction heating system and an image forming device provided with the image heating device. SOLUTION: In this image heating device 100 which has a magnetic flux generating means having an exciting coil 3 and a magnetic material core 4 and an induction heating element 1 executing electromagnetic induction heat generation by the action of the generated magnetic flux of the magnetic flux generating means and which heats an image on a recording material by the heat of the induction heating element 1 by introducing and carrying the recording material to a heating part N, the characteristic (Curie temperature) of the magnetic material cores 4 (4C, 4B and 4C) arranged in a direction orthogonal with the carrying direction of the recording material is set to be different according to the position of the direction orthogonal with the carrying direction of the recording material.