Invention Grant
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
- Patent Title: Two-component color developer and image formation device using same
- Patent Title (中): 双组分彩色显影剂和使用它的成像装置
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Application No.: US14346713Application Date: 2012-07-25
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Publication No.: US09274447B2Publication Date: 2016-03-01
- Inventor: Tadayuki Sawai , Yoritaka Tsubaki , Keiichi Kikawa , Keigo Mitamura , Yui Kawano , Shintaro Fukuoka
- Applicant: Tadayuki Sawai , Yoritaka Tsubaki , Keiichi Kikawa , Keigo Mitamura , Yui Kawano , Shintaro Fukuoka
- Applicant Address: JP Osaka-Shi
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Osaka-Shi
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2011-207676 20110922
- International Application: PCT/JP2012/068860 WO 20120725
- International Announcement: WO2013/042453 WO 20130328
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/113 ; G03G9/087 ; G03G9/09 ; G03G9/097 ; G03G13/08 ; G03G15/08
Abstract:
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.
Public/Granted literature
- US20140242510A1 TWO-COMPONENT COLOR DEVELOPER AND IMAGE FORMATION DEVICE USING SAME Public/Granted day:2014-08-28
Information query
