Patent ID: 8903295
Filing Date: 2014-12-02
Classification: G03G

Abstract:
1. A fixing device comprising: a fixing member including a conductive layer and that fixes toner on a recording material while the conductive layer is induction-heated; a magnetic-field-producing unit including a temperature measuring device provided in contact with an inner circumferential surface of the fixing member and that measures the temperature of the fixing member; and a second magnetic-circuit-producing member having a cut portion in which the temperature measuring device is provided, the second magnetic-circuit-producing member being in contact with the inner circumferential surface of the fixing member and producing a magnetic circuit of the alternating-current magnetic field produced by the magnetic-field-producing unit, the second magnetic-circuit-producing member conducting heat to the fixing member by being induction-heated, wherein the first magnetic-circuit-producing members at the second interval are provided on both sides of a position corresponding to the cut portion of the second magnetic-circuit-producing member in a direction in which the magnetic circuit is produced, and the first magnetic-circuit-producing members at the first interval are provided at other positions.