Heating apparatus and image heating apparatus

Details Heating apparatus and image heating apparatus Heating apparatus and image heating apparatus

2005-11-29

2005-11-29

Leung, Philip H. (Department: 3742)

Electric heating

Inductive heating

With heat exchange

C219S670000, C219S663000, C399S328000, C399S330000

Reexamination Certificate

active

06969833

ABSTRACT:
A heating apparatus includes a magnetic field generator for generating an AC magnetic field; a heat generation member for generating heat by the magnetic field generated by the magnetic field generator, the heat generation member being effective to heat a material to be heated; a magnetic field suppressing member for suppressing the magnetic field from the magnetic field generator; a moving unit for moving the magnetic field suppressing member into a gap between the magnetic field generator and a heat generating portion where the magnetic field generated by the magnetic field generator substantially acts on the heat generation member; a magnetic field controller for controlling an effective magnetic field generated by the magnetic field generator, wherein the magnetic field controller changes the magnetic field generated by the magnetic field generator in accordance with a moving operation of the magnetic field suppressing member, and wherein the effective magnetic field in a heating operation for the material to be heated is less intensive during movement of the magnetic field suppressing member than when the magnetic field suppressing member is at rest.

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