Patent ID: 6865365
Filing Date: 2005-03-08
Classification: G03G

Abstract:
1. A heating roller adapted for use with a fixing apparatus, comprising: an OFO pipe; a heating coil disposed to cover at least a portion of an outer circumference of the OFC pipe; an aluminum pipe covering at least a portion of an outer circumference of the heating coil; an insulator, adapted to cover at least a portion of a surface of the heating coil, and to separate the heating coil from contact with the OFC pipe and the aluminum pipe; at least one electrode having a terminal adapted to be in electrical contact with the heating coil and to melt when the temperature of said electrode rises over a predetermined temperature, and, wherein the terminal is further adapted to be removed from the heating coil in the event the terminal melts; and at least one brush, adapted to contact the electrode and provide AC power to the electrode, such that when the temperature of the heating coil rises over the predetermined temperature, the terminal of the electrode is melted and supply of the AC power from the brush to the heating coil is discontinued.