| 摘要 |
A developing device includes a developer tank that contains a developer including a toner and a carrier, a developing agent supplier that develops a latent image by using the toner contained in the developer tank, a discharge port that is provided in a side surface of the developer tank and discharges the developer, and a discharge assisting member that protrudes from a downstream side of the discharge port in a direction of flow of the developer in the developer tank and in a direction crossing the direction of the flow of the developer.
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