Patent ID: 7890027

Claim:
A toner supply container detachably mountable to an assembly of an electrophotographic imaging forming apparatus having a hollow cylindrical driving member that has a slot formed therein, which slot extends in a circumferential direction and defines a plurality of interior surfaces of the hollow cylindrical driving member, and a hollow cylinder that is substantially concentric with the hollow cylindrical driving member, said toner supply container comprising: i) a container body configured to contain toner and rotatable about an axis thereof; and ii) a coupling member provided at one axial end portion of said container body, said coupling member including: ii-i) a coupling portion provided at a side remote from said container body and configured and positioned to receive a rotational drive force, said coupling portion including: ii-i-i) a supporting portion, said supporting portion being elastically displaceable in an inward direction toward the axis of said container body and elastically restorable in an outward direction away from the axis of said container body; ii-i-ii) an engaging portion provided at a free end of said supporting portion, said engaging portion configured and positioned to (a) displace in an inward direction with said supporting portion as said engaging portion enters the hollow cylindrical driving member and (b) engage with the slot of the hollow cylindrical driving member when said supporting portion elastically restores in an outward direction, said engaging portion including a rotational force receiving portion capable of being abutted in a circumferential direction of the hollow cylindrical driving member by at least a portion of a first interior surface of the hollow cylindrical driving member defined by the slot to receive a rotational drive force from the hollow cylindrical driving member to rotate said container body; and ii-i-iii) a displacing force receiving portion provided at a position closer to said container body than said engaging portion, said displacing force receiving portion configured and positioned to receive a force from the hollow cylinder and cause said supporting portion to elastically displace in an inward direction.