| 发明名称 | Electrophotographic image forming apparatus | ||
| 摘要 | An electrophotographic image forming apparatus includes an electrophotographic photosensitive member configured to bear an electrostatic latent image, and a developer carrying member configured to develop the electrostatic latent image. The electrophotographic photosensitive member and the developer carrying member are separated from each other during non-image formation and brought into contact with each other after the electrophotographic photosensitive member and the developer carrying member start to be rotated. During a time period between a time when the electrophotographic photosensitive member and the developer carrying member start to be rotated and a time when the electrophotographic photosensitive member and the developer carrying member are brought into contact with each other, a number of revolutions of the developer feed member is larger than a number of revolutions of the developer carrying member. | ||
| 申请公布号 | US9116459(B2) | 申请公布日期 | 2015.08.25 |
| 申请号 | US201313863546 | 申请日期 | 2013.04.16 |
| 申请人 | CANON KABUSHIKI KAISHA | 发明人 | Yamamoto Shinya;Hayashi Kodai;Taniguchi Hisashi;Hirata Yuichiro |
| 分类号 | G03G21/18;G03G15/08;G03G15/00 | 主分类号 | G03G21/18 |
| 代理机构 | Fitzpatrick, Cella, Harper & Scinto | 代理人 | Fitzpatrick, Cella, Harper & Scinto |
| 主权项 | 1. An electrophotographic image forming apparatus, comprising: an electrophotographic photosensitive member configured to bear an electrostatic latent image; a developer carrying member configured to carry developer and develop the electrostatic latent image in a state in which the developer carrying member is in contact with the electrophotographic photosensitive member; and a developer feed member configured to feed the developer to the developer carrying member in a state in which the developer feed member is in contact with the developer carrying member, wherein the electrophotographic photosensitive member and the developer carrying member are separated from each other during non-image formation and brought into contact with each other after the electrophotographic photosensitive member and the developer carrying member start to be rotated, and wherein, during a time period between a time when the electrophotographic photosensitive member and the developer carrying member start to be rotated and a time when the electrophotographic photosensitive member and the developer carrying member are brought into contact with each other, a number of revolutions of the developer feed member is larger than a number of revolutions of the developer carrying member. | ||
| 地址 | Tokyo JP | ||