Developing roller and image forming method employing the same

Details Developing roller and image forming method employing the same Developing roller and image forming method employing the same

2008-01-11

2011-10-04

Chapman, Mark (Department: 1721)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

C399S286000, C428S423100, C428S447000, C428S474400

Reexamination Certificate

active

08029965

ABSTRACT:
An objective is to provide a developing roller possessing a surface layer capable of suppressing the residual potential during repetitive use with no damage of interlayer adhesiveness, preventing toner leakage and contaminations caused by adhesion matter on the surface, and preventing developing unevenness because of even toner electrification; and also to provide an image forming method employing the developing roller. Also disclose is a developing roller possessing a conductive shaft, and a resin layer provided around an outer circumferential surface of the conductive shaft, wherein the resin layer possesses a surface layer containing a silicone copolymer resin as a principal component and a layer containing a polyamide resin as a principal component, that is provided immediately below the surface layer.

REFERENCES:
patent: 6376087 (2002-04-01), Ozeki et al.
patent: 6714754 (2004-03-01), Ozeki et al.
patent: 6815134 (2004-11-01), Kyung
patent: 2006/0257175 (2006-11-01), Endo et al.
patent: 2001-027843 (2001-01-01), None
patent: 2006/109563 (2006-10-01), None
Chinese Office Action dated May 24, 2011(4 pages) with English language translation thereof (5 pages).

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