Developing Cartridge and Method for Manufacturing the Same

摘要

A developing cartridge is provided. The developing cartridge includes a first frame and a second frame and a layer thickness regulating member. The first frame and the second frame include a first welding surface formed at a periphery of the developer accommodating part correspondingly to a developer accommodating part; and a second welding surface extending continuously from the first welding surface correspondingly to a roller support part. The first welding surface extends in a direction orthogonal to an overlapping direction of the first frame and the second frame. The second welding surface extends to be inclined toward a side of the first frame in the overlapping direction as extending toward the developing roller. The layer thickness regulating member is provided to cover the second welding surface from a side of the second frame in the overlapping direction.

主权项

1. A developing cartridge comprising:
a developing roller having a shaft; a supply roller that is positioned relative to the developing roller so as to create a nip between the supply roller and the developing roller; a first sidewall; a second sidewall; a developing roller layer thickness regulating member having a blade member and a support member supporting the blade member, the support member including a first support portion and a second support portion, where the second support portion is orthogonal to the first support portion; a first frame including:
a first welding surface; anda second welding surface extending from the first welding surface and inclined downwardly with respect to the first welding surface; and a second frame including:
a third welding surface welded with the first welding surface,a fourth welding surface welded with the second welding surface and inclined downwardly with respect to the third welding surface, andan outer external surface on an opposite side of the second frame from the third welding surface, the outer external surface forming a plane, wherein the first support portion is parallel to and below the plane, wherein a portion of the first side wall and a portion of the second side wall are located above the plane and extend above the shaft.