Patent ID: 8320801

Claim:
A developer supply container detachably mountable to a developer receiving apparatus including a driving gear, said container comprising: an inner body configured to contain a developer, said inner body having an inner opening formed on a peripheral portion thereof; an outer body configured and positioned to open and close said inner opening by rotation thereof about said inner body, which is non-rotatably fixed to the apparatus, said outer body having an outer opening formed on a peripheral portion thereof, communicable with said inner opening; a developer feeding member provided in said inner body and configured to feed the developer in said inner body toward said inner opening when said outer body takes a developer discharging position where said outer opening is communicable with said inner opening; a drive receiving member provided on an axial end of said outer body and configured to engage with the driving gear and to be rotatable about an axis thereof to receive a rotational force for rotating said developer feeding member relative to said inner body; and a regulating portion configured and positioned to regulate a mounting attitude of said container relative to the apparatus so as to prevent an engagement between said drive receiving member and the driving gear, and thereafter upon mounting said container, said drive receiving member being revolvable, with manual rotation of said outer body relative to said inner body, in a setting direction around an axis of said outer body to a set position where said drive receiving member is engageable with the driving gear, wherein said drive receiving member is loaded to retard the rotation thereof about the axis, so as to rotate said outer body from the set position to the developer discharging position in the setting direction by a rotational force received by said drive receiving member from the driving gear.