Patent ID: 8055173

Claim:
A fixing apparatus comprising: a fixing member that has a base layer and a conductive layer formed therein and fixes a toner onto a recording medium when the conductive layer is heated by electromagnetic induction; a magnetic field generating member that generates an alternating-current magnetic field crossing the conductive layer formed in the fixing member; and a magnetic field inducing member that is arranged so as to face the magnetic field generating member across the fixing member, and that induces the alternating-current magnetic field generated in the magnetic field generating member thereinto or allows the alternating-current magnetic field to go therethrough, the base layer of the fixing member and the magnetic field inducing member each containing a material having a magnetic permeability change onset temperature in the range of not less than 140 degrees and not more than 240 degrees in a temperature range from not less than a heating preset temperature of the fixing member to not more than a heatproof temperature of the fixing member, and a thickness of the base layer being smaller than a skin depth of the base layer at the heating preset temperature of the fixing member.