Title:
The process cartridge using the electrostatic latent image development agent which consists of the career for electrostatic latent image development agents, a career, and a toner, and the development agent
Document Type and Number:
Japanese Patent JP5915073
Kind Code:
B2
Abstract:
A carrier for developing an electrostatic latent image, including a particulate core material having a magnetism having developed spontaneous magnetization; and a covering layer comprising an electroconductive material, covering the surface of the particulate core material, wherein the carrier has an electrical resistivity Log R [Ωcm] of from 8.0 to 12.0 when measured by a method, including filling the carrier in a cell containing a pair of facing electrodes, each having a surface area of 2×4 [cm2] with a gap of 2 [mm] therebetween; and applying a DC voltage of 1,000 [V] therebetween to measure a DC resistivity, and a weight-average particle diameter (Dw) of from 25 to 45 μm.
Inventors:
Yamaguchi Public Interest
Shigenori Taniguchi
Toyoshi Sawada
Hiroshi Higashimatsu
Hitoshi Iwatsuki
Toyoaki Tano
Shigenori Taniguchi
Toyoshi Sawada
Hiroshi Higashimatsu
Hitoshi Iwatsuki
Toyoaki Tano
Application Number:
JP2011229821A
Publication Date:
May 11, 2016
Filing Date:
October 19, 2011
Export Citation:
Assignee:
株式会社リコー
International Classes:
G03G9/113; G03G9/107; G03G15/09
Domestic Patent References:
| JP2005300734A | ||||
| JP2007086721A | ||||
| JP2003280287A | ||||
| JP2006154019A | ||||
| JP2011197227A | ||||
| JP2009251483A | ||||
| JP2012103592A |
Attorney, Agent or Firm:
Chieko Tateno
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