Patent ID: 7894752
Filing Date: 2011-02-22
Classification: G03G

Abstract:
1. A developer supply cartridge, detachably mountable to an image forming apparatus in a direction, for supplying a developer to a developer receiving cartridge including two pins arranged in the direction, said developer supply cartridge comprising: a container body having a developer containable inner space and a discharge opening for permitting discharge of the developer from said container body; and a rotatable disk including a plurality of recesses each of which extends radially and a plurality of leaf-like portions which are disposed between adjacent ones of said recesses, said leaf-like portions having respective surfaces which are effective to rotate said rotatable disk in two rotational directions, wherein by a relative movement between the developer receiving cartridge and said developer supply cartridge, two of said recesses are engaged with the two pins respectively, and one of said two recesses is capable of opening and closing said discharge opening, and the other one is capable of closing said discharge opening.