Patent ID: 7469113

Claim:
A toner supply container detachably mountable to an image forming apparatus, comprising: a toner discharge opening for permitting discharge of toner toward a toner receiving portion of the image forming apparatus; a rotatable container body for containing the toner, said container body being rotatable in a rotational direction about a rotational axis thereof; a feeding portion for feeding the toner contained in said container body toward said toner discharge opening by rotation of said container body; and a coupling member having a plurality of hooks, at least one of said hooks being in a hooking engagement with at least one of a plurality of engaging holes provided in a rotational driving portion of the image forming apparatus so as to receive a rotational driving force for rotating said container body, by relative movement between the rotational driving portion and said coupling member in a direction in which said feeding portion feeds the toner so as to overlap with the rotational driving portion, before said coupling member receives the rotational driving force, irrespective of a positional relation, with respect to a rotational direction about the rotational axis of said container body, of said coupling member relative to the rotational driving portion.