Title:
DEVELOPING MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/203321
Kind Code:
A1
Abstract:
The present invention provides a developing member which can maintain high picture quality and high durability in a high-speed process. As a developing member for electrophotography having a conductive support body and a conducting layer provided on the support body, a developing member is used in which: the conducting layer has a matrix comprising a first rubber and a plurality of domains distributed within the matrix; the domains comprise a second rubber and an electron conducting material; under a specified environment, impedance measured by applying AC voltage having an amplitude of 1V to the conducting layer while varying the frequency thereof between 1.0×10-2 Hz to 1.0×107 Hz, inclusive, has a slope on a high-frequency side of -0.8 to -0.3, inclusive, when plotted on a double logarithmic plot having frequency as a horizontal axis and impedance as a vertical axis; and the impedance on a low-frequency side is 1.0×104 Ω to 1.0×1011 Ω, inclusive.
Inventors:
YAMADA MASAKI (JP)
KIKUCHI YUICHI (JP)
HINO TETSUO (JP)
YAMAUCHI KAZUHIRO (JP)
FURUKAWA TAKUMI (JP)
WATANABE HIROAKI (JP)
TERADA KENYA (JP)
TOMOMIZU YUYA (JP)
NAKAZAWA TOSHIMITSU (JP)
KIKUCHI YUICHI (JP)
HINO TETSUO (JP)
YAMAUCHI KAZUHIRO (JP)
FURUKAWA TAKUMI (JP)
WATANABE HIROAKI (JP)
TERADA KENYA (JP)
TOMOMIZU YUYA (JP)
NAKAZAWA TOSHIMITSU (JP)
Application Number:
PCT/JP2019/016693
Publication Date:
October 24, 2019
Filing Date:
April 18, 2019
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
G03G15/08; B29C48/154; F16C13/00
Foreign References:
| JP2006207807A | 2006-08-10 | |||
| JP2011022410A | 2011-02-03 | |||
| JPH11231637A | 1999-08-27 | |||
| JP2017058639A | 2017-03-23 | |||
| US3640708A | 1972-02-08 |
Attorney, Agent or Firm:
OKABE Yuzuru et al. (JP)
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