发明名称 |
Development roller, development device, image forming apparatus, and method of manufacturing development roller |
摘要 |
A development roller includes a base unit having a base recess and a base projection that are formed in a predetermined area of a circumference surface of the base unit, and a surface layer formed on the circumference surface of the base unit and having on the circumference thereof a recess and a projection formed respectively in accordance with the base recess and the base projection of the base unit. Surface hardness of the projection is higher than surface hardness of the recess.
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申请公布号 |
US7907879(B2) |
申请公布日期 |
2011.03.15 |
申请号 |
US20090388908 |
申请日期 |
2009.02.19 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
YAMADA YOICHI;MAEDA MASAHIRO;SUZUKI JUNICHI;FUKUMOTO TAKATOMO |
分类号 |
G03G15/08 |
主分类号 |
G03G15/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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