Patent ID: 6969833
Filing Date: 2005-11-29
Classification: G03G,H05B

Abstract:
1. A heating apparatus comprising: magnetic field generating means for generating a magnetic field having an intensity which changes with time; a heat generation member for generating heat by the magnetic field generated by said magnetic field generating means, said heat generation member being effective to heat an image on a recording material; a magnetic field suppressing member for suppressing the magnetic field from said magnetic field generating means to the heat generation member; moving means for moving said magnetic field suppressing member into a gap between said magnetic field generating means and a heat generating portion where the magnetic field generated by said magnetic field generating means substantially acts on said heat generation member; and magnetic field control means for controlling an effective magnetic field generated by said magnetic field generating means, wherein said magnetic field control means controls the effective magnetic field generated by said magnetic field generating means in accordance with a moving operation, during a heating operation for the recording material, of said magnetic field suppressing member.