Patent ID: 8126384
Filing Date: 2012-02-28
Classification: G03G

Abstract:
1. A fixing device comprising: a fixing member that has a conductive layer, and that fixes toner onto a recording medium by heat generation of the conductive layer through electromagnetic induction; a magnetic field generating member that generates an alternate-current magnetic field crossing the conductive layer of the fixing member; a magnetic path forming member that is arranged so as to face the magnetic field generating member through the fixing member, that forms a magnetic path of the alternate-current magnetic field generated by the magnetic field generating member within a temperature range not greater than a permeability change start temperature at which permeability starts to decrease, and that causes the alternate-current magnetic field generated by the magnetic field generating member to go through the magnetic path forming member within a temperature range exceeding the permeability change start temperature; and a heat radiation member that is arranged to be in contact with the magnetic path forming member in order to radiate heat generated in the magnetic path forming member toward a direction opposite to the fixing member with reference to the magnetic path forming member.