Wenderoth, Lind & Ponack
Developing device with developer sleeve facilitating developer supply adjustment by bristle height regulating member
 A developing device includes a developing sleeve provided rotatably at a side of an electrostatic latent image support member, a supply member for supplying developer to the developing sleeve, a bristle height regulating member which confronts an upper portion of the developing sleeve so as to adjust an amount of the developer transported to a developing region and a plurality of magnets provided in the developing sleeve. The magnetic poles of the magnets not only extend in an axial direction of the developing sleeve but are arranged in a circumferential direction of the developing sleeve. The magnetic poles include a weak magnetic pole disposed adjacent to the upper portion of the developing sleeve and two strong magnetic poles between which the weak magnetic pole is interposed. The strong magnetic poles have a polarity different from that of the weak magnetic pole. 
Minolta Camera Kabushiki Kaisha
G G
G03G G03G
inventional inventional
Hiroshi Akihito Kouichi Hiroshi
Mizuno Ikegawa Etou Murasaki