Patent ID: 8761626
Filing Date: 2014-06-24
Classification: G03G

Abstract:
1. A fixing apparatus, comprising: a heat generating layer; an exciting coil which generates a magnetic flux and which inductively heats the heat generating layer with the magnetic flux; a magnetic shunt layer which is responsive to temperature due to heat generated in the heat generating layer; a degaussing member which cancels the induction magnetic flux from the exciting coil with a repulsive magnetic flux, and the degaussing member is a coil; and a magnetic flux adjusting unit which acts on the degaussing member to adjust the repulsive magnetic flux, wherein a heat generating rotor is configured with at least the heat generating layer, the exciting coil is arranged outside the heat generating rotor and the degaussing member is arranged inside the heat generating rotor, and the fixing apparatus is configured to control a temperature of the heat generating layer with a self temperature control function using a Curie temperature of the magnetic shunt layer which is disposed in an opposing location of the exciting coil, wherein a magnetic path forming member which forms a magnetic path of the exciting coil is arranged on a back face side of the degaussing member that is a reverse side of the magnetic shunt layer with the degaussing member therebetween.