Patent ID: 8818247
Filing Date: 2014-08-26
Classification: G03G

Abstract:
1. A developing cartridge comprising: a first frame including: a second frame overlapped and welded with the first frame to cover the developer accommodating part and the roller support part; and a layer thickness regulating member which is provided to extend in an axial direction of the developing roller and is configured to regulate a thickness of developer carried on the developing roller, the layer thickness regulating member including a blade member and a support member, and the support member including a first part contacting the blade member and a second part extending in a direction orthogonal to the first part, wherein each of the first frame and the second frame includes: wherein the first frame is welded with the second frame at the accommodating part side welding surface and the support part side welding surface, wherein the accommodating part side welding surface extends in a direction orthogonal to an overlapping direction of the first frame and the second frame such that the overlapping direction is a direction orthogonal to the accommodating part side welding surface, wherein the support part side welding surface is inclined at a non-zero inclination with respect to the accommodating part side welding surface such that the support part side welding surface extends toward a side of the first frame in the overlapping direction as extending from the accommodating part side welding surface toward the developing roller in a direction orthogonal to the axial direction of the developing roller, and wherein the support part side welding surface is disposed between the supply roller and the second part of the support member in the overlapping direction.