| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device equipped with the composition capable of preventing defective rotation and increase of rotation load by securely preventing invasion of a developer into a rotating part. SOLUTION: The developing device is equipped with the composition for preventing invasion of a toner and the developer stored in the developing device into a bearing 62 in a bearing member between the bearing member supporting a rotation shaft edge part of a rotation member 5 disposed in the device body and the rotation member 56. As an invasion preventing composition, a developer shielding member 64 wrapping the bearing 62 of the bearing member is disposed in the rotation member 56. |
