Patent ID: 7742724
Filing Date: 2010-06-22
Classification: G03G

Abstract:
1. A developer supply container for supplying developer to a developer receiving portion of a main assembly of an electrophotographic image forming apparatus, said developer supply container being mountable to a main assembly of the image forming apparatus, said developer supply container comprising: a developer accommodating portion that accommodates a developer; a discharge opening that permits the discharge of the developer; a stirring member that stirs the developer in said developer accommodating portion; a stirring drive receiving portion, provided in one of opposing sides of said developer supply container, that receives a stirring driving force for driving said stirring member from a stirring drive transmitting portion provided in the main assembly of the image forming apparatus and that transmits the stirring driving force to said stirring member; an openable member movable to open and close said discharge opening; an opening and closing drive receiving portion, provided in said openable member, that receives an opening and closing driving force for moving said openable member; an opening and closing drive transmitting portion, provided in the other of the opposing sides, that transmits the opening and closing driving force to said opening and closing drive receiving portion through an opening and closing driving relay portion provided in the main assembly of the image forming apparatus; wherein by mounting said developer supply container to the main assembly of the image forming apparatus, drive force transmittable engagements are established between the stirring drive transmitting portion and said stirring drive receiving portion, between said opening and closing drive transmitting portion and the opening and closing driving relay portion, and between the opening and closing driving relay portion and said opening and closing drive receiving portion, respectively, so that the stirring driving force is transmittable from the stirring drive transmitting portion to said stirring drive receiving portion, and the opening and closing driving force is transmittable from said opening and closing drive transmitting portion to said opening and closing drive receiving portion, and wherein a mounting direction in which said developer supply container is mounted to the main assembly of the image forming apparatus opposes the direction of a force received by said developer supply container from the main assembly of the image forming apparatus; and an engaging portion, provided adjacent each of said opposing sides, that limits movement of said developer supply container in a dismounting direction in which said developer supply container is dismounted from the main assembly of the image forming apparatus by engagement with a locking portion provided in the main assembly of the image forming apparatus when said developer supply container is mounted to the main assembly of the image forming apparatus.