Patent ID: 7738817

Claim:
A developer supply container detachably mountable to an electrophotographic image forming apparatus, the apparatus including an apparatus shutter configured to open and close a developer receiving opening and a gear, said container comprising: a container body including an inner space configured to contain developer and a developer discharging opening configured to permit discharge of the developer in said container body toward the developer receiving opening; and a manual operating member configured and positioned to rotate with respect to said container body in two rotational directions to open and close the apparatus shutter, said manual operating member including: a gear portion engageable with the gear during a mounting operation of said container to the apparatus, to transmit a drive force in one rotational direction to the apparatus shutter through the gear so as to open the apparatus shutter, and to transmit a drive force in the other rotational direction to the apparatus shutter through the gear so as to close the apparatus shutter; and a locking portion configured and positioned to be locked with the apparatus during the mounting operation of said container to prevent a demounting of said container from the apparatus, wherein said manual operating member is rotatable between a first angular position in which said locking portion is locked with the apparatus during the mounting operation of said container, a second angular position offset from the first angular position in the one rotational direction in which the apparatus shutter is opened, and a third angular position offset from the first angular position in the other rotational direction in which said locking portion is released from the apparatus with a closing operation of the apparatus shutter.