| 摘要 |
An object of the present invention is to provide a developing apparatus that has a developer carrying body, a first frame having an opening and forming a part of a containing portion for containing the developer, a second frame joined to the first frame to cover the opening, the second frame forming a part of the containing portion, and a sealing member for preventing leakage of the developer from a longitudinal end part of the developer carrying body, the sealing member being supported over the first and second frames, wherein the first and second frames are coupled together in a manner that adjacent surfaces of the first and second frames for supporting the sealing member form substantially identical planes.
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