DEVELOPER SUPPLY CONTAINER

A developer supply container includes a developer accommodating portion (2) having one end (52a) provided with an opening, and drive receiving portion (2d), a discharging portion including a receiving portion (42) into which the one end of the accommodating portion is inserted, and a developer discharge opening (4c), the accommodating portion being mounted to the discharging portion rotatably relative to the discharging portion; a sealing member (60) sealing between the one end and the receiving portion; a projection (51) radially projecting from an outer peripheral surface of the accommodating portion; and a first restricting portion (41) and a second restricting portion provided (43) on the receiving portion of the discharging portion at positions upstream and downstream of the projection, respectively in the inserting direction (R) and contactable to the projection to restrict an inclination of the rotational axis (R') of the accommodating portion relative to the inserting direction within a predetermined range.