Title:
CHARGING MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2010/050615
Kind Code:
A1
Abstract:
Disclosed is a charging member enabling prevention of an image from being stained because of charging failure or adhering matter even after the charging member is repetitively used for a long period and prevention of a C-set image produced because of deformation and variation of the rotational speed due to the deformation even after a long-term operation stop. Further disclosed is a charging member preferable to an elecrophotgraphic apparatus so designed as to produce an image of higher quality, to produce a color image and to have a longer service life, preferable for a DC voltage application type and for charging a photosensitive body by contact changing, and excellent in durability. The charging member includes a conductive support and a surface layer. The surface layer contains a binder and resin particles dispersed in the binder and having a recess in the surface thereof. The surface layer has thereon projections attributed to the resin particles. Each projection has a recess attributed to the recess of the resin particle. The resin particles are covered with the binder.
Inventors:
MAYUZUMI HIROSHI (JP)
TANIGUCHI TOMOHITO (JP)
TANIGUCHI TOMOHITO (JP)
Application Number:
PCT/JP2009/068936
Publication Date:
May 06, 2010
Filing Date:
October 29, 2009
Export Citation:
Assignee:
CANON KK (JP)
MAYUZUMI HIROSHI (JP)
TANIGUCHI TOMOHITO (JP)
MAYUZUMI HIROSHI (JP)
TANIGUCHI TOMOHITO (JP)
International Classes:
G03G15/02
Foreign References:
| JP2001092221A | 2001-04-06 | |||
| JP2006065059A | 2006-03-09 |
Attorney, Agent or Firm:
OKABE, Masao et al. (JP)
Masao Okabe (JP)
Masao Okabe (JP)
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