Patent ID: 8045878
Filing Date: 2011-10-25
Classification: G03G

Abstract:
1. A unit for fusing a toner image, the unit comprising: an insulation unit for generating a first induced current, the insulation unit comprising a primary and a secondary coil, wherein the primary coil is separated from a heater of the unit and is switchably controlled by an alternating current generator electrically coupled to the primary coil; the heater which is resistance-heated by a second induced current generated in the heater by the first induced current received from the secondary coil of the insulation unit, and wherein the insulation unit is physically outside the heater; a toner fusing unit comprised of a roller which fuses the toner image using the heat received from the heater; and an end cap installed to at least one of opposite ends of the unit, and in which an air vent is formed, wherein an internal space of the unit is ventilated via the air vent.