发明授权
US09274447B2 Two-component color developer and image formation device using same
有权
双组分彩色显影剂和使用它的成像装置
- 专利标题: Two-component color developer and image formation device using same
- 专利标题(中): 双组分彩色显影剂和使用它的成像装置
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申请号: US14346713申请日: 2012-07-25
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公开(公告)号: US09274447B2公开(公告)日: 2016-03-01
- 发明人: Tadayuki Sawai , Yoritaka Tsubaki , Keiichi Kikawa , Keigo Mitamura , Yui Kawano , Shintaro Fukuoka
- 申请人: Tadayuki Sawai , Yoritaka Tsubaki , Keiichi Kikawa , Keigo Mitamura , Yui Kawano , Shintaro Fukuoka
- 申请人地址: JP Osaka-Shi
- 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-Shi
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2011-207676 20110922
- 国际申请: PCT/JP2012/068860 WO 20120725
- 国际公布: WO2013/042453 WO 20130328
- 主分类号: G03G9/08
- IPC分类号: G03G9/08 ; G03G9/113 ; G03G9/087 ; G03G9/09 ; G03G9/097 ; G03G13/08 ; G03G15/08
摘要:
A two-component color developer containing a toner and a resin-coated carrier, the toner containing at least a polyester resin as a binding resin, an organic pigment as a colorant and inorganic fine particles as an external additive, wherein the inorganic fine particles have a negative polarity, the toner has a volume resistivity of 40×109 to 220×109 Ωcm and a negative polarity, and the carrier has a coat durability of 90% or greater.
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