Patent ID: 7634218

Claim:
A toner cartridge comprising: a casing that is configured to accommodate toner therein, the casing being formed with a first casing opening, the casing having one edge and another edge opposite to the one edge along a predetermined direction, the one edge being located at an upstream side relative to the another edge in the predetermined direction, the first casing opening being located at the another edge; a partitioning wall that is configured to be rotatable relative to the casing around a predetermined rotational axis, the partitioning wall having a side surface that extends substantially parallel to the rotational axis, a first partitioning-wall opening being formed through the side surface of the partitioning wall, the first partitioning-wall opening being selectively aligned with the first casing opening when the partitioning wall is rotated relative to the casing, the first partitioning-wall opening providing communication between the interior and exterior of the casing to discharge toner from the casing when aligned with the first casing opening; an operation member rotating the partitioning wall relative to the casing; a first motive force generating unit provided inside the casing between the one edge and the another edge and generating a motive force to convey toner in the predetermined direction toward the first casing opening; and a second motive force generating unit provided inside the casing between the one edge and the another edge, the second motive force generating unit being located on the upstream side of the first motive force generating unit in the predetermined direction and generating another motive force to convey toner in the predetermined direction toward the first motive force generating unit.