| 摘要 |
PROBLEM TO BE SOLVED: To prevent the loss of sealability at junctions of frame bodies 24 and 29 in a configuration in which the junctions are arranged respectively on end seal seat surfaces 80 arranged on the ends of a developing roller 22.SOLUTION: A first frame body 24 and a second frame body 29 are joined at a first welding part 70 and a second welding part 71, and the first welding part is formed of an inclination surface 60c provided on the first frame body that is brought into contact with the second frame body to be welded thereto and a first welding target surface provided on the second frame body that is brought into contact with the inclination surface to be welded thereto. The first frame body and second frame body are joined so as to include the entire width area of a seal member 39 in the axial direction of a developing roller 22 at the first welding part. |
