Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Development device of an image forming apparatus and a driven toner bottle for use in the development device
 An opening portion formed in the head of a toner bottle containing a toner is attached to a body of a development device of an image forming apparatus. The toner bottle is then turned so as to supply the development device with the toner. A projection for turning the toner bottle is formed on a circumferential surface on the bottom side of the toner bottle. On the development device side, a driving source is mounted which drives and turns the toner bottle through the projection when the toner bottle is attached to the development device body. 
Ricoh Company, Ltd.
G G Y G
G03G G03G Y10S G03G
inventional additional additional additional
Shigeru Hideo
Yoshiki Yoshizawa