Abstract
An original e-Coil roller fusing system whose warm up time could be reduced below in a half compared with a conventional halogen lamp fusing system. The name of e-Coil roller is taken from which the heating coil is expanded by hydrostatic pressure onto the inner section of a heat roller. The e-coil roller fusing system was designed to have the direct heat-conductive structure without any air gap between insulation layers and the heating coil for increasing heat transfer efficiency. Also the e-Coil fusing system has excellent heat conservative capability so that on continuous printing electric power supply to fusing system is unnecessary. Since the heat source, that is the heating coil, rotates with the fusing roller, the rotating electric power supply should be maintained without any problem like spark or the increase of harmful contact resistance. For safety the robust insulation layers are prepared to sustain high withstanding voltage and surge induced by a bolt of lightning. Ni-Cr ribbon type resistive heater used as a heat source of the e-Coil roller have advantages that current is always maintained to be constant unlike the tungsten wire of halogen lamp whose in-rush current drastically increased during early time right after power-on. Major elements of SMPS are damaged that their lives are shortened. In this paper, the e-Coil roller fusing system for 22PPM MFP (Multi Functional Peripheral) is designed to satisfy the main design factors. The important performances like warm up time, power consumption on print, Flicker and additional power saving effect by slow cooling of e-Coil roller are presented and compared with results of halogen lamp fusing system.
Published Version
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