| 摘要 |
PROBLEM TO BE SOLVED: To simplify the process of attaching a sealing member.SOLUTION: A developing device comprises: a developer storage chamber that stores developer; a frame with a development opening that supplies developer from the inside of the developer storage chamber to the outside thereof; a first sealing member that seals the development opening and can be detached from the development opening by being pulled from a pull opening provided in the frame; and a second sealing member that slides against the first sealing member when the first sealing member is pulled from the pull opening and prevents the developer from leaking out of the frame through the pull opening. The second sealing member is integrally formed with the frame by injecting thermoplastic elastomer into an empty space between the first sealing member and the pull opening. |
