发明授权
US5288579A Developer for developing electrostatic image, image forming apparatus,
apparatus unit and facsimile apparatus
失效
用于显影静电图像，图像形成装置，装置单元和传真装置的显影剂
- 专利标题： Developer for developing electrostatic image, image forming apparatus, apparatus unit and facsimile apparatus
- 专利标题（中）： 用于显影静电图像，图像形成装置，装置单元和传真装置的显影剂
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申请号： US801486申请日： 1991-12-02
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公开(公告)号： US5288579A公开(公告)日： 1994-02-22
- 发明人: Katsuhiko Tanaka , Kazuyoshi Hagiwara , Tsuyoshi Takiguchi , Rika Doi
- 申请人： Katsuhiko Tanaka , Kazuyoshi Hagiwara , Tsuyoshi Takiguchi , Rika Doi
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-33095 19901130; JPX3-142763 19910520
- 主分类号： G03G9/097
- IPC分类号： G03G9/097 ; H04N1/29 ; G03G9/00 ; G03G9/083 ; G03G9/107
摘要：
A developer for developing electrostatic images is constituted by toner containing a binder resin and a charge controller. The charge controller comprises an arylurea compound which is an arylurea having at least one electron-attracting group or electron-donating group, or a polyarylurea including such an arylurea as a recurring unit. The arylurea compound is substantially colorless and can have stable but different levels of triboelectric chargeability depending on the substituents.
公开/授权文献
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