Patent ID: 7133637
Filing Date: 2006-11-07
Classification: G03G

Abstract:
1. An electrophotographic image forming apparatus including a fixing unit and a driver rotating the fixing unit, the fixing unit comprising: a heat roller assembly comprising a heat roller, a gear cap coupled to a first end of the heat roller and transmitting rotation to the heat roller, and an elastic member coupling the gear cap with the heat roller; and a pressing roller pressing a recording medium passing between the pressing roller and the heat roller toward the heat roller, the gear cap comprising an insertion portion inserted in the heat roller, and a gear portion integrally provided adjacent to the insertion portion and rotated by the driver, and the elastic member being provided between an outer circumferential surface of the insertion portion of the gear cap and an inner circumferential surface of the heat roller, and coupling the gear cap with the heat roller, wherein the elastic member forms a pair, in the outer circumferential surface of the insertion portion of the gear cap, there is positioned a pair of elastic member accommodating parts, to accommodate the pair of elastic members, and at least one of the pair of the elastic members comprises