| US 7,496,321 B2 | ||
| Developer supplying cartridge, developer receiving cartridge, process cartridge, and image forming apparatus | ||
| Takashi Yahagi, Toride (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Feb. 29, 2008, as Appl. No. 12/40,116. | ||
| Application 12/040116 is a division of application No. 11/947993, filed on Nov. 30, 2007, granted, now 7,400,847. | ||
| Application 11/947993 is a division of application No. 11/281394, filed on Nov. 18, 2005, granted, now 7,409,181. | ||
| Application 11/281394 is a division of application No. 09/718416, filed on Nov. 24, 2000, granted, now 7,010,250. | ||
| Claims priority of application No. 11-337265 (JP), filed on Nov. 29, 1999; and application No. 2000-350621 (JP), filed on Nov. 17, 2000. | ||
| Prior Publication US 2008/0159782 A1, Jul. 03, 2008 | ||
| Int. Cl. G03G 15/08 (2006.01) | ||
| U.S. Cl. 399—260 [399/262] | 1 Claim |
| 1. A developer supply cartridge, detachably insertable into an image forming apparatus in a direction, for supplying a developer
to a developer receiving cartridge including first and second engaging members arranged in the direction, said developer supply
cartridge comprising:
a developer container configured to contain the developer, said developer container having a discharge opening for permitting
discharge of the developer from said developer container; and
a shutter member configured and positioned to open and close said discharge opening by rotation about a rotation center thereof,
wherein said shutter member includes a plurality of sets of an opening portion for opening said discharge opening and a closing
portion for closing said discharge opening which are alternately disposed in a rotational direction of said shutter member
and a plurality of recesses which are disposed between adjacent ones of said opening portion and said closing portion respectively,
and said recesses each having respective surfaces which are effective to rotate said shutter member in two rotational directions,
and
wherein when said developer supply cartridge and the developer receiving cartridge are set into the image forming apparatus,
two of said recesses are in such a position or relationship as are engageable with the first and second engaging members,
respectively, and one of said two recesses is capable of being used in an opening movement and a closing movement of said
shutter member, and the other one is capable of being used in the closing movement of said shutter member.
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