Patent ID: 6987245
Filing Date: 2006-01-17
Classification: G03G,H05B

Abstract:
1. A temperature controlling type heat plate for fixation comprising: a metallic base plate; and a heating resistor arranged on a reverse face of the metallic base plate, the heating resistor being formed by laminating, at least, a heat transmission strengthening layer, a first heating resistor layer for controlling temperature, a first heat transmission strenghtening layer a second heating resistor layer, a second heat insulation strengthening layer, a heat reflecting layer and a protective layer in this order on the metallic base plate, wherein the first heating resistor layer for controlling temperature is made of a resistor material having a positive temperature coefficient, and when the heating resistor is energized and heated, the temperature of the heating resistor is automatically set and controlled so that the temperature is not increased to 300° C. or more.