Patent ID: 8121524

Claim:
A developer supply container comprising: a container body that includes an outlet port and contains developer therein; a developer conveyance member that includes: a rotational shaft, and a conveyance-member body that is supported by the rotational shaft and has flexibility, the developer conveyance member that is disposed in the container body and conveys the developer to the outlet port for discharge; and a clog prevention member formed in the conveyance-member body in a position corresponding to the outlet port, the clog prevention member that goes into the outlet port to protrude to outside of the container body in response to a rotation of the rotational shaft, wherein a length, in a radial direction from the rotational shaft, of the clog prevention member is shorter than a length, in the radial direction from the rotational shaft, of portions of the conveyance-member body in regions axially adjacent to the clog prevention member.