发明名称 |
Developing apparatus, apparatus unit, and image forming method |
摘要 |
<p>A developing apparatus has a developer container for holding a developer, a developer carrying member for carrying a positively chargeable developer held in the developer container and transporting the developer to a developing zone and a developer layer-thickness regulating member for regulating the thickness of a positively chargeable developer layer to be formed on the developer carrying member. The developer carrying member has at least a substrate and a resin coat layer formed of a resin composition on the surface of the substrate. The resin composition contains at least (I) a binder resin, (II) a conductive fine powder, (III) spherical particles having a number-average particle diameter of from 0.3 mu m to 30 mu m and (IV) a quaternary ammonium salt compound which is positively chargeable to iron powder. <IMAGE></p> |
申请公布号 |
EP0950928(A1) |
申请公布日期 |
1999.10.20 |
申请号 |
EP19990107664 |
申请日期 |
1999.04.16 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
OKAMOTO, NAOKI;GOSEKI, YASUHIDE;SHIMAMURA, MASAYOSHI;FUJISHIMA, KENJI;SAIKI, KAZUNORI;OTAKE, SATOSHI |
分类号 |
G03G15/09;G03G15/095;G03G15/30;(IPC1-7):G03G15/08 |
主分类号 |
G03G15/09 |
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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