| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing cartridge capable of achieving miniaturization of an image forming apparatus and also achieving reduction of the number of components. <P>SOLUTION: The developing cartridge 16 includes: a first frame 32 including a toner storage part 38 and a roller supporting part (supply roller supporting part 39 and developing roller supporting part 40); a second frame 33 welded to the first frame 32 so as to cover over the toner storage part 38 and the roller supporting part; and a layer thickness regulating blade 24. The first frame 32 and the second frame 33 are provided with: a storage part side welding surface (first storage part side welding surface 42 and second storage part side welding surface 82) extending from front to back and from right to left corresponding to the toner storage part 38; and a supporting part side welding surface (first supporting part side welding surface 43 and second supporting part side welding surface 83) inclined back and downward corresponding to the roller supporting part; wherein the layer thickness regulating blade 24 is provided to cover over the supporting part side welding surface from above. <P>COPYRIGHT: (C)2011,JPO&INPIT |
