公开(公告)号：US20170153578A1

公开(公告)日：2017-06-01

申请号：US15325883

申请日：2015-07-14

Applicant: S-Printing Solution Co., Ltd.

Inventor： Mitsuru OIKAWA ,  Jin-hong KIM ,  Dae-ho KIM ,  Jun-hee LEE

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/00 ,  G03G15/06 ,  G03G15/0865 ,  G03G15/095 ,  G03G2215/0819 ,  G03G2215/0827

Abstract: A developing apparatus for an image forming apparatus comprises: a developing roller; a developing housing which rotatably supports the developing roller and receives a two-component developer; a first mixing member installed in the developing housing to mix the developer; and a second mixing member installed in the developing housing to be parallel to the first mixing member and adjacent to the developing roller, wherein the second mixing member comprises: a shaft; a spiral wing part formed along the shaft; and a plurality of ribs formed so as to protrude from the surface of the shaft.