Roll or roller – Concentric layered annulus – Specific composition
Patent
1997-02-26
1999-04-27
Chapman, Mark
Roll or roller
Concentric layered annulus
Specific composition
399265, 399279, 399286, G03G 1508
Patent
active
058974776
ABSTRACT:
A developer carrier comprising a cylindrical support having provided on the outer surface thereof a coating layer for retaining a developer, wherein the coating layer comprises electrically conductive fine particles and a binder resin comprising a phenolic resin having a weight-average molecular weight of from 3,000 to 5,000 as determined before being crosslinked. Also disclosed is a developing apparatus which comprises a developer carrier for retaining a developer on the surface thereof and for conveying the developer onto the position at which an electrostatic latent image formed on a latent image carrier is developed, wherein the developer carrier comprises a cylindrical support having provided on the outer surface thereof a coating layer for retaining a developer, wherein the coating layer comprises electrically conductive fine particles and a binder resin comprising a phenolic resin having a weight-average molecular weight of from 3,000 to 5,000 as determined before being crosslinked.
REFERENCES:
patent: 5697027 (1997-12-01), Takagi et al.
Chemical Abstract 117:113629 (corresponds to JP 4-89876) Mar. 1992..
Nakatogawa Kenji
Ohta Shigeo
Takayama Hiroshi
Chapman Mark
Fuji 'Xerox Co., Ltd.
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