Patent ID: 6336022
Filing Date: 2002-01-01
Classification: G03G

Abstract:
A developing unit, comprising:a case for accommodating toner which contains pigment by 5 wt % or more contained within said case; a developing roller rotatably supported by said case through a shaft; a supply roller rotatably supported by said case through a shaft and formed by an elastic member arranged to be pressed against said developing roller in such a manner as to supply toner to the surface of said developing roller; and at least two conveying fins each rotatably supported by said case through a shaft so as to convey toner to the surface of said supply roller wherein said developing roller, said supply roller and said conveying fins are sequentially disposed so that the phases of rotation of said at least two conveying fins are different from one another, such that loads generated by said at least two conveying fins during rotation are uniform.