Patent ID: 7647012

Claim:
A toner supply container detachably mountable to an image forming apparatus, said container comprising: a container body having an inner space configured and positioned to contain toner; a feeding portion configured and positioned to feed the toner in said container body to discharge the toner out of said container body; and a coupling member configured and positioned to engage with a hollow cylindrical member provided in the image forming apparatus, wherein said coupling member includes: an engaging portion configured and positioned to engage with a hole formed in a peripheral portion of the cylindrical member to receive a rotational force from the cylindrical member; a supporting portion configured and positioned to support said engaging portion, said supporting portion being displaceable substantially radially outwardly to establish engagement of said engaging portion with the hole of the cylindrical member by a relative movement between the cylindrical member and said coupling member in a direction of overlapping therebetween; and a displacing force receiving portion, disposed at a position on said supporting portion closer to said container body than said engaging portion with respect to a direction parallel with the direction of overlapping therebetween, configured to receive, from a slidable hollow member provided in the image forming apparatus outside the cylindrical member, a displacing force for displacing said engaging portion substantially radially inwardly to permit a relative movement for disengagement between the cylindrical member and said coupling member in a direction opposite to the direction of overlapping.