Title:
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/138845
Kind Code:
A1
Abstract:
Provided is an image forming apparatus including an image bearer, a developing unit configured to develop with a toner, an intermediate transfer member, and a transferring unit, wherein the intermediate transfer member is a laminate including a base layer and an elastic layer including particles at a surface thereof to form convex-concave shapes at the surface, the particles have volume resistivity of from 1×100 ohm*cm through 1×109 ohm*cm, the toner includes additive, an amount of the additive separated from the toner is from 20 percent by mass through 35 percent by mass relative to a total amount of the additive in the toner when a toner dispersion liquid in which the toner is dispersed in a dispersant is irradiated with ultrasonic wave vibration with an irradiation energy dose of 4 kJ, and the toner has a dielectric constant of 2.6 or greater but 3.9 or less.
Inventors:
TAKEI AKIO (JP)
INOUE DAISUKE (JP)
HISAKUNI DAICHI (JP)
KUBO HIDETAKA (JP)
OHMORI MASAHIRO (JP)
AWAMURA JUNICHI (JP)
INOUE DAISUKE (JP)
HISAKUNI DAICHI (JP)
KUBO HIDETAKA (JP)
OHMORI MASAHIRO (JP)
AWAMURA JUNICHI (JP)
Application Number:
PCT/JP2018/047160
Publication Date:
July 18, 2019
Filing Date:
December 21, 2018
Export Citation:
Assignee:
RICOH CO LTD (JP)
TAKEI AKIO (JP)
INOUE DAISUKE (JP)
HISAKUNI DAICHI (JP)
KUBO HIDETAKA (JP)
OHMORI MASAHIRO (JP)
AWAMURA JUNICHI (JP)
TAKEI AKIO (JP)
INOUE DAISUKE (JP)
HISAKUNI DAICHI (JP)
KUBO HIDETAKA (JP)
OHMORI MASAHIRO (JP)
AWAMURA JUNICHI (JP)
International Classes:
G03G15/16; G03G9/08
Foreign References:
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Attorney, Agent or Firm:
HIROTA, Koichi (JP)
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