| 摘要 |
The present invention provides for a developing device comprising a developing roller configured to supply developer to a developing portion, a first conveying path configured to guide a moving of the developer and from which the developer is supplied by the developing roller to the developing portion, a first mixer configured to mix the developer while the developer is moving along the first conveying path, a second conveying path configured to guide the moving of the developer, wherein a residual developer left on the developing roller is recovered to the second conveying path and conveyed to the first conveying path, a second mixer configured to mix the developer while the developer is moving along the second conveying path, and a partition member arranged between the developing roller and the first conveying path to prevent leakage of the developer from between the developing roller and the first conveying path to the second conveying path directly, wherein one end of the partition member is brought in contact with the developing roller.
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