发明授权
US07429442B2 Toner, and two component developer and image forming apparatus using the toner
有权
调色剂和使用调色剂的双组分显影剂和图像形成装置
- 专利标题： Toner, and two component developer and image forming apparatus using the toner
- 专利标题（中）： 调色剂和使用调色剂的双组分显影剂和图像形成装置
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申请号： US11061477申请日： 2005-02-22
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公开(公告)号： US07429442B2公开(公告)日： 2008-09-30
- 发明人: Takahiro Honda , Masami Tomita , Toshiki Nanya , Fumihiro Sasaki , Shigeru Emoto , Hiroto Higuchi , Hiroshi Yamada , Shinichiro Yagi , Tomomi Suzuki , Junichi Awamura , Naohito Shimota
- 申请人： Takahiro Honda , Masami Tomita , Toshiki Nanya , Fumihiro Sasaki , Shigeru Emoto , Hiroto Higuchi , Hiroshi Yamada , Shinichiro Yagi , Tomomi Suzuki , Junichi Awamura , Naohito Shimota
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2004-044257 20040220
- 主分类号： G03G9/08
- IPC分类号： G03G9/08
摘要：
A toner is provided that contains a binder resin; a colorant; a release agent; and an external additive, wherein the toner has an average circularity of from 0.940 to 0.965 and a crater having a depth of from 0.02 to 0.1 μm, and wherein the crater has an amount of the external additive larger than an average amount thereof on the toner, along with a two-component developer containing the toner and an image forming apparatus using the toner.
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