发明授权
- 专利标题： Toner, two-component developer and image formation device
- 专利标题（中）： 调色剂，双组分显影剂和成像装置
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申请号： US12184680申请日： 2008-08-01
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公开(公告)号： US08043781B2公开(公告)日： 2011-10-25
- 发明人: Tatsuo Imafuku , Takahiro Bito , Takeshi Satoh
- 申请人： Tatsuo Imafuku , Takahiro Bito , Takeshi Satoh
- 申请人地址： JP Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JP Osaka
- 代理机构： Nixon & Vanderhye P.C.
- 优先权： JP2007-201075 20070801
- 主分类号： G03G9/00
- IPC分类号： G03G9/00
摘要：
A toner comprising a small-particle diameter external additive having a number average particle diameter of 7 to 20 nm, a large-particle diameter external additive having a number average particle diameter of 40 to 80 nm and a toner particle having a volume average particle diameter of 4 to 7 μm, wherein the large-particle diameter external additive is stuck to the surface of the toner particles in a semi-embedded state and has a rate of liberation of 0.1% by weight or less from the surface of the toner particle.
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