Patent ID: 7039336
Filing Date: 2006-05-02
Classification: G03G

Abstract:
1. An image heating device comprising: magnetic field generating means for generating a magnetic field; a heat generation member for generating heat by said magnetic field to heat an image on a recording material; electric power supply means for supplying electric power to said magnetic field generating means; electric power changing means for changing the electric power to said magnetic field generating means; a temperature detecting member for detecting a temperature of said heat generation member; electric power supply stopping means for discriminating whether or not the electric power supply to said magnetic field generating means is to be stopped on the basis of a temperature detected by said temperature detecting member during a period from start of heating by said heat generation member to reaching of the temperature to a predetermined temperature, and for stopping the electric power supply on the basis of a comparison between the detected temperature and temperature information based on a predetermined temperature rising curve; and correcting means for correcting, when said electric power changing means changes the electric power, the temperature rising curve on the basis of the electric power changed by said electric power changing means.