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Patent Searching and Data


Title:
TONER, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Document Type and Number:
Japanese Patent JP2004205932
Kind Code:
A
Abstract:

To provide a toner and an image forming apparatus in which a charging member is not contaminated in a direct charging system over a prolonged period of time, in which neither scuffing nor scraping of a photoreceptor is caused even when a toner reduced in particle diameter is used, and which maintains high image quality.

A photoreceptor having a surface layer containing fluororesin particles dispersed in a polymer having an arylate structure in a surface of a photosensitive layer is used in combination with a toner having a specified relation between a weight average diameter and a number-base cumulative value of particles having a degree of circularity of ≥0.950 in particles of ≥3μm.


Inventors:
MICHIGAMI TADASHI
SHIBAYAMA YASUKO
HASEGAWA YUSUKE
YOSHIDA AKIRA
Application Number:
JP2002376814A
Publication Date:
July 22, 2004
Filing Date:
December 26, 2002
Export Citation:
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Assignee:
CANON KK
International Classes:
G03G9/08; G03G5/05; G03G5/147; (IPC1-7): G03G9/08; G03G5/05; G03G5/147
Attorney, Agent or Firm:
Keisuke Watanabe
Yoshihiro Yamaguchi