| 摘要 |
A developing device including: plural developing units each for developing an electrostatic image formed on an image bearing member with developer that contains toner and carriers in a developing portion; a rotary member for mounting the plurality of developing units thereon and rotating along a path that includes the developing portion; and a containing pipe provided in the rotary member to contain excess developer discharged from the developing units in association with a replenishment of developer, in which the containing pipe is substantially non-rotatably provided, and the developer in the containing pipe is fed utilizing the rotation of the rotary member.
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