Patent ID: 8116666
Filing Date: 2012-02-14
Classification: G03G

Abstract:
1. A developer material container that holds a developer material therein, the developer material container being attached to an image forming apparatus, the container comprising: a housing that holds the developer material therein, the housing including a first engagement portion and an opening through which the developer material is discharged into the image forming apparatus, wherein the first engagement portion includes a first surface; and a shutter fitted into the housing and slidable relative to the housing, the shutter including a second engagement portion that alternately engages with and disengages from the first engagement portion when the shutter slides relative to the housing, and a shutter wall that either opens or closes the opening when the shutter slides relative to the housing, wherein the second engagement portion includes a second surface and either at least two projections formed on the second surface or at least two first recesses formed in the second surface, the at least two projections being spaced apart by the first surface and the at least two first recesses being spaced apart by the first surface, wherein the first surface of the first engagement portion is in sliding contact with the second surface between adjacent projections when the first surface is between the adjacent projections.