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1. CN101223484 - Developer carrier and developing device

Office China
Application Number 200680026308.7
Application Date 21.07.2006
Publication Number 101223484
Publication Date 16.07.2008
Grant Number 100495239
Grant Date 03.06.2009
Publication Kind C
IPC
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
06
for developing
08
using a solid developer, e.g. powder developer
G03G 15/08
Applicants Canon KK
佳能株式会社
Inventors Shimamura Masayoshi
岛村正良
Goseki Yasuhide
后关康秀
Akashi Yasutaka
明石恭尚
Saiki Kazunori
齐木一纪
Otake Satoshi
大竹智
Dojo Nene
道上宁子
Ito Minoru
伊藤稔
Agents yanghong jun
北京林达刘知识产权代理事务所
Priority Data 211658/2005 21.07.2005 JP
211681/2005 21.07.2005 JP
Title
(EN) Developer carrier and developing device
(ZH) 显影剂承载体及显影装置
Abstract
(EN)
A developer carrying member is provided which, even in continuous copying over a long term and also even under different environmental conditions, do not cause any charge-up of toner, and prevent the toner from melt-adherent to the developer carrying member surface and developer layer thickness control member surface to maintain the state of uniform coating of a developer having a toner and to make the toner uniformly and quickly triboelectrically charged, so as to obtain high-grade images free of any image density decrease, image density non-uniformity, sleeve ghosts, fog and vertical streaks during running service. Provided are a developer carrying member having a substrate and a resin coat layer on the surface of the substrate, which resin coat layer contains at least a binder resin and a carbon black, where the graphite (002) plane obtained from X-ray diffraction of the carbon black has a lattice spacing of from 0.3370 nm or more to 0.3450 nm or less; and a developing assembly having such a developer carrying member.

(ZH)

本发明提供一种显影剂承载体及显影装置,即使经长时间连续转印、或在不同环境条件下,也不引起调色剂的充电,并能防止调色剂热粘接在显影剂承载体表面或控制显影剂层厚的构件表面,进而使含有调色剂的显影剂维持均匀的涂布状态,并能使调色剂均匀且迅速地摩擦带电,从而得到耐久使用时无图像浓度降低或浓度不均、套筒重影、灰雾、竖条纹的高品质图像。具体提供具有基体和设置在该基体表面上的树脂被覆层的显影剂承载体及具有该显影剂承载体的显影装置,该树脂被覆层至少含有粘合树脂和炭黑,利用X射线衍射得到的该炭黑的石墨(002)的面间隔为0.3370nm以上0.3450nm以下。