| 发明名称 | Development device and image forming apparatus and process unit incorporating same | ||
| 摘要 | A development device includes a developer bearer to carry developer thereon and receive a development bias and a developer regulator to adjust an amount of developer carried on the developer bearer. Multiple recesses recessed from a reference surface area are formed in a surface of the developer bearer, the developer bearer includes a conductive base in which the recesses are formed, and the conductive base in the reference surface area is coated with an insulative surface layer. | ||
| 申请公布号 | US9008556(B2) | 申请公布日期 | 2015.04.14 |
| 申请号 | US201313799085 | 申请日期 | 2013.03.13 |
| 申请人 | Ricoh Company, Ltd. | 发明人 | Ishikura Yuuji;Aoki Katsuhiro;Yamada Masaaki;Yamane Masayuki;Kurokawa Atsushi;Satoh Yuuki |
| 分类号 | G03G15/08 | 主分类号 | G03G15/08 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A development device comprising: a developer bearer to carry developer thereon and receive a development bias, the developer bearer having a surface in which multiple recesses recessed from a reference surface area are formed; a developer regulator to adjust an amount of developer carried on the developer bearer, and a rotary developer supply member including a conductive surface, wherein the developer bearer includes a conductive base in which the recesses are formed, and the conductive base in the reference surface area is coated with an insulative surface layer, and wherein the developer supply member supplies developer carried on the conductive surface thereof to the developer bearer in a contact area between the developer supply member and the developer bearer. | ||
| 地址 | Tokyo JP | ||