Patent ID: 8649711

Claim:
A developer supply system comprising: a developer receiving device; and a developer supply container detachably mountable to said developer receiving device, said developer receiving device including: a driving gear rotatable in a first direction to transmit a driving force, and a portion configured to position said developer supply container at a developer discharging position after said developer supply container is rotated in a second direction relative to said developer receiving device, the second direction being opposite to the first direction, and said developer supply container including: an accommodating portion configured to accommodate the developer; a discharge opening provided on said accommodating portion and configured to permit discharge of the developer; a first gear, engaged with said driving gear, to transmit a driving force supplied from said driving gear; a second gear to transmit a driving force received from sais first gear; and a feeding member, supported by said second gear and rotatable in the first direction, configured to feed the developer toward said discharge opening.