Title:
CORONA CHARGING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP2010122584
Kind Code:
A
Abstract:
To provide a corona charging device preventing a photoreceptor from being deteriorated, and suppressing density unevenness just under the charging device, when used in an electrophotographic type image forming device, and to provide a process cartridge equipped therewith, and the image forming device.
The corona charging device has a shield case having an opening part, a corona discharge electrode arranged in the shield case, and a charged grid arranged between the corona discharge electrode and the opening part, and has a composition containing at least a zeolite, a B-type silica gel, a conductive agent and a binding resin, on a surface of the charged grid.
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Inventors:
TODA NAOHIRO
INABA YOSHINORI
TADA HIROMI
NAGAYAMA TOMOO
IWAMOTO TAKAFUMI
NOSHO SHINJI
YANAGAWA YOSHITERU
INABA YOSHINORI
TADA HIROMI
NAGAYAMA TOMOO
IWAMOTO TAKAFUMI
NOSHO SHINJI
YANAGAWA YOSHITERU
Application Number:
JP2008297884A
Publication Date:
June 03, 2010
Filing Date:
November 21, 2008
Export Citation:
Assignee:
RICOH KK
International Classes:
G03G15/02; G03G5/147; H01T19/00
Domestic Patent References:
| JP2003043894A | 2003-02-14 | |||
| JPS6289660A | 1987-04-24 | |||
| JP2006350020A | 2006-12-28 | |||
| JPH01319062A | 1989-12-25 |
Attorney, Agent or Firm:
Hidehiko Takei
Yasuo Yoshimura
Yasuo Yoshimura
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