Title:
TWO-COMPONENT COLOR DEVELOPER AND IMAGE FORMATION DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/042453
Kind Code:
A1
Abstract:
A two-component color developer which contains a toner, said toner comprising at least a polyester resin as a binder resin, an organic pigment as a coloring agent and inorganic microparticles as an external additive, and a resin-coated carrier, wherein the inorganic microparticles have a negative polarity, the toner has a volume resistivity of 40×109-220×109 Ωcm and has a negative polarity, and the carrier has a coat durability of 90% or greater.
Inventors:
SAWAI TADAYUKI
TSUBAKI YORITAKA
KIKAWA KEIICHI
MITAMURA KEIGO
KAWANO YUI
FUKUOKA SHINTARO
TSUBAKI YORITAKA
KIKAWA KEIICHI
MITAMURA KEIGO
KAWANO YUI
FUKUOKA SHINTARO
Application Number:
PCT/JP2012/068860
Publication Date:
March 28, 2013
Filing Date:
July 25, 2012
Export Citation:
Assignee:
SHARP KK (JP)
SAWAI TADAYUKI
TSUBAKI YORITAKA
KIKAWA KEIICHI
MITAMURA KEIGO
KAWANO YUI
FUKUOKA SHINTARO
SAWAI TADAYUKI
TSUBAKI YORITAKA
KIKAWA KEIICHI
MITAMURA KEIGO
KAWANO YUI
FUKUOKA SHINTARO
International Classes:
G03G9/087; G03G9/08; G03G9/09; G03G9/113; G03G15/01
Foreign References:
| JP2009192675A | 2009-08-27 | |||
| JP2005316306A | 2005-11-10 | |||
| JP2008090028A | 2008-04-17 | |||
| JP2004045925A | 2004-02-12 | |||
| JP2000284523A | 2000-10-13 |
Attorney, Agent or Firm:
NOGAWA, Shintaro et al. (JP)
Shintaro Nogawa (JP)
Shintaro Nogawa (JP)
Download PDF:
Claims:
Previous Patent: TONER FOR ELECTROPHOTOGRAPHY AND IMAGE FORMATION DEVICE USING SAME
Next Patent: WIRELESS COMMUNICATION SYSTEM
Next Patent: WIRELESS COMMUNICATION SYSTEM