| 摘要 |
PROBLEM TO BE SOLVED: To improve image quality by preventing a developer from staying in a developer storage part.SOLUTION: An image forming unit includes an image carrier, a developer carrier, a first developer supply member, and a seal member having a fixed end 40a and a free end 40b. A housing Cs2 includes a first wall part extended obliquely downward from the fixed end 40a of the seal member in a vertical direction and a second wall part extended along the outer peripheral surface 35S of the first developer supply member. A first distance d between the inner peripheral surface of the first wall part and the outer peripheral surface 35S of the first developer supply member is decreased as away from the fixed end 40a. |
