发明名称 |
Electrophotographic developer. |
摘要 |
<p>The present invention provides an electrophotographic developer comprising (i) a toner containing, as a fixing resin, a styrene-acrylic copolymer presenting a gel permeation chromatogram showing a molecular-weight distribution in which the detection-starting molecular weight and the detection-ending molecular weight are respectively located in specific ranges, and (ii) a carrier coated with a coating resin which is a styrene-acrylic copolymer containing at least 2-hydroxyethyl acrylate. Even though repeatedly agitated in the developing device, the electrophotographic developer of the present invention is not deteriorated and assures good durability and long life-time. <IMAGE></p> |
申请公布号 |
EP0468495(A2) |
申请公布日期 |
1992.01.29 |
申请号 |
EP19910112500 |
申请日期 |
1991.07.24 |
申请人 |
MITA INDUSTRIAL CO. LTD. |
发明人 |
NAKANO, TETSUYA;YABE, NARUO;INOUE, MASAHIDE;TERATANI, TERUAKI;TSUYAMA, KOICHI;SHIMIZU, YOSHITAKE;ISHIMARU, SEIJIRO |
分类号 |
G03G9/087;G03G9/113 |
主分类号 |
G03G9/087 |
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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