Title:
CHARGING MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/119245
Kind Code:
A1
Abstract:
The provision of a charging member that exhibits excellent performance in terms of charging an electrophotographic photoreceptor and is resistant to changes over time in said performance. Said charging member is provided with a conductive substrate, a conductive elastic layer, and a conductive surface layer. The elastic layer contains the following: a polymer that has an ethylene-oxide-derived unit; and particles, namely graphite particles and/or graphitized particles. The surface of the elastic layer has parts where said particles are exposed. The aforementioned surface layer covers the surface of the elastic layer, including the parts where the particles are exposed, and contains a binder resin and resin particles dispersed within said binder resin. The surface of the surface layer has a plurality of bumps due to said resin particles. If the resin particles in the surface layer are orthographically projected onto the surface of the elastic layer, the parts of the surface of the elastic layer onto which no projections of resin particles fall overlap the parts thereof where the abovementioned particles are exposed.
Inventors:
TANIGUCHI TOMOHITO (JP)
SATO TAICHI (JP)
UEMATSU ATSUSHI (JP)
SATO TAICHI (JP)
UEMATSU ATSUSHI (JP)
Application Number:
PCT/JP2014/000248
Publication Date:
August 07, 2014
Filing Date:
January 20, 2014
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
G03G15/02; B32B27/18; B32B27/20; F16C13/00
Foreign References:
| JP2010134452A | 2010-06-17 | |||
| JP2010134431A | 2010-06-17 | |||
| JP2012118322A | 2012-06-21 | |||
| JP2012168259A | 2012-09-06 | |||
| JP2008276024A | 2008-11-13 |
Attorney, Agent or Firm:
OKABE, Yuzuru et al. (JP)
Okabe 讓 (JP)
Okabe 讓 (JP)
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