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Title:
DEVELOPING ROLLER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS
Document Type and Number:
Japanese Patent JP2012181370
Kind Code:
A
Abstract:

To provide a developing roller that has stable electrical characteristics for a long period and suppresses blade bias leak.

The elastic layer of a developing roller contains a copolymer comprising quaternary pyridinium salt and tertiary amine.


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Inventors:
ANAMI ITSUYA
SAKURAI YUJI
URUSHIBARA KIYOHIRA
ISHII TORU
Application Number:
JP2011044352A
Publication Date:
September 20, 2012
Filing Date:
March 01, 2011
Export Citation:
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Assignee:
CANON KK
International Classes:
G03G15/08; C08F226/06; F16C13/00
Domestic Patent References:
JP2005189723A2005-07-14
JP2003270926A2003-09-25
JPS61258267A1986-11-15
JPH04204677A1992-07-27
JP2009074052A2009-04-09
JP2003345095A2003-12-03
Attorney, Agent or Firm:
桂田 健志



 
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