| 摘要 |
A image forming unit includes an image forming unit including an image bearing body that bears a latent image, a developer bearing body that develops the latent image, a developer supplying portion that supplies the developer to the developer bearing body, an agitating portion provided in the vicinity of the developer supplying portion and including a plate member for agitating the developer in the vicinity of the developer supplying portion and a rotation shaft that holds the plate member, and a driving mechanism that causes the plate member of the agitating portion to reciprocatingly swing about the rotation shaft.
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