Patent ID: 7369798

Claim:
A developer supply container capable of supplying a developer to a portion, to be supplied with the developer, of a main assembly of an image forming apparatus by being mounted into the image forming apparatus main assembly to permit transmission of a driving force between said developer supply container and the image forming apparatus main assembly, said developer supply container comprising: a developer discharge opening to be disposed opposite to a developer receiving opening provided to the image forming apparatus main assembly when said developer supply container is mounted into the image forming apparatus main assembly; an operation member capable of performing a moving operation in a mounted state of said developer supply container; a first transmitting portion, provided to said operation member, for transmitting a driving force for opening and closing said developer discharge opening; a second transmitting portion for transmitting a driving force to a main assembly shutter member, provided to the image forming apparatus main assembly, for opening and closing the developer receiving opening; the driving force having been transmitted from said first transmitting portion when said developer supply container is mounted into the image forming apparatus main assembly through a relay gear train, for opening and closing the developer receiving opening, provided to the image forming apparatus main assembly and provided with at least a plurality of gears which have a common rotational axis and are different in number of tooth; and a container-side abutting portion for abutting against a gear-side abutting portion provided to at least one gear of the relay gear train; wherein said container-side abutting portion abuts against the gear-side abutting portion to rotate the relay gear train when said developer supply container is mounted into the image forming apparatus main assembly.