| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device that can improve a sealing function with a magnetic brush to suppress a developer from flowing into a bearing member, a process cartridge, and an image forming apparatus.SOLUTION: There is provided a developing device including: a developer storage container; a developer carrier; a developer conveyance member 11 that is rotatably provided on a rotation axis 11a and has a developer conveyance part 11b over the rotation axis direction; a bearing member 70 that has a bearing case 71 having a bearing part rotatably and pivotally supporting a rotary shaft end part provided inside a hollow space; a sealing member that is present between the inner peripheral surface of the bearing case and the outer peripheral surface of the rotation axis and is in contact with the outer peripheral surface of the rotation axis to seal a space between the bearing case and rotation axis; a first magnet member 75 that is provided opposite to the bearing case on the center side in the rotation axis direction of the rotation axis with respect to the sealing member; and a second magnet member 76 that is provided on an opposing surface of the bearing case opposite to the first magnet member, where the first magnet member and second magnet member have magnetic poles different from each other on surfaces opposite to each other.SELECTED DRAWING: Figure 1 |
