Seal part and developing device having the same

摘要

A bushing used in a developer container to seal a developer, has an aperture portion through which a rotary member extends. The aperture portion is provided with a seal portion contacting with the peripheral surface of the rotary member and preventing the developer from leaking out. A fitting portion fits in a recess formed in a frame of the developer container. The fitting portion is formed integrally with the seal portion.