| 摘要 |
A developing apparatus is provided to stabilize contact pressure between a developer amount regulation member and a developer bearing member, reduce variation of the contact pressure between the two members and suppress image concentration unevenness. A developer bearing member is configured to bear and carry a developer and to develop an electrostatic image formed on an image bearing member with the developer. A developer amount regulating apparatus(4) is configured to regulate the amount of the developer carried by the developer bearing member. The developer amount regulating apparatus comprises the following parts. A flexible developer amount regulation member has a contact portion configured to contact with the developer bearing member. First and second holding portions are configured to maintain the developer amount regulation member and to contact with the developer amount regulation member at upstream and downstream in a direction where the developer bearing member is rotationally moved.
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