Patent ID: 7460816
Filing Date: 2008-12-02
Classification: G03G

Abstract:
1. A developer cartridge, comprising: a cartridge case having a first side wall, a second side wall, a top wall and a bottom wall, the cartridge case including a front portion and a back portion; a supply roller rotatably supported by the first side wall and the second side wall; a developing roller rotatably supported by the first side wall and the second side wall; and a gear holder provided on the first side wall; wherein: the gear holder includes support members corresponding to at least an input gear for receiving a driving force from an image forming device and a developer roller shaft on which a developing roller gear is mounted for conveying the driving force to the developing roller; the cartridge case includes an opening in the front portion, the developing roller being located adjacent to the opening; the back portion of the cartridge case forms a toner hopper; and the gear holder includes a receiving portion that extends away from a remainder of the gear holder to a position in the opening opposed to the developing roller.