Patent ID: 7801457
Filing Date: 2010-09-21
Classification: G03G,H05B

Abstract:
1. A fixing device, comprising: an excitation coil to generate a magnetic flux; a heat-generating layer to generate heat using the magnetic flux generated by the excitation coil; a magnetic shunt layer to transmit heat generated by the heat-generating layer; and a degaussing member to sandwich the magnetic shunt layer together with the excitation coil, the degaussing member configured to operate selectively to degauss by generating a repelling magnetic flux for canceling the magnetic flux generated by the excitation coil to activate a self-temperature-control function and to refrain from degaussing to deactivate the self-temperature-control function, wherein the degaussing member includes a switch element to open and close an electrical circuit including a supplemental coil and selectively supply power to the electrical circuit.