US 7,483,659 B2
Toner cartridge and image forming apparatus for mounting the same
Noriyuki Takuwa, Kanagawa-ken (Japan)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan); and Toshiba Tec Kabushiki Kaisha, Tokyo (Japan)
Filed on Aug. 08, 2006, as Appl. No. 11/500,636.
Claims priority of application No. 2005-252177 (JP), filed on Aug. 31, 2005; and application No. 2005-252178 (JP), filed on Aug. 31, 2005.
Prior Publication US 2007/0048029 A1, Mar. 01, 2007
Int. Cl. G03G 15/08 (2006.01)
U.S. Cl. 399—262 15 Claims
OG exemplary drawing
 
1. A toner cartridge in a bottle shape for storing toner, comprising:
a cylindrical developer storage portion having a blocked bottom wall at one end and an opening for ejecting toner at the other end;
a circular groove portion formed at the opening side from the center of the developer storage portion in a longitudinal direction;
a bottle cap to close the opening, the bottle cap including a bowl-shaped flange portion having an external dimension almost equal to an external dimension of the developer storage portion on the opening side from the circular groove portion; and
a projection portion formed on a outer peripheral surface of the flange portion, the projection portion is a different formation according to the type of toner cartridge.