Fuji Xerox Co., Ltd.

Fujifilm Business Innovation Corp.

Yukiko Kamijo

Taketoshi Hoshizaki

Hidemi Nukada

Masahiko Miyamoto

Kazuya Hongo

Kenji Omori

Wataru Yamada

Kenji Inoue

Hirofumi Nakamura

Masahiro Iwasaki

Tomoko Suzuki

Takashi Yamada

Yusuke Watanabe

Yuka Ishihara

Hideaki Ohara

Kenta Shingu

Ichiro Takegawa

Koji Bando

Hitoshi Komuro

Kozo Ota

Junko Yamasaki

Tetsuya Ezumi

Michiko Aida

Daisuke Nakashima

Keiko Matsuki

A unit includes: a developing device configured to develop an electrostatic charge image that is formed on a surface of an image carrier, as a toner image with a developer including a brilliant toner containing a flat brilliant pigment, the developer being accommodated in the developing device; and a fixing device configured to fix the toner image onto a surface of a recording medium at a fixing temperature of 130&#xb0; C. or higher and 230&#xb0; C. or lower that includes a fixing belt, a first roller and a second roller that are disposed inside the fixing belt and support the fixing belt while applying tension to the fixing belt, and a pressure roller, the first roller and the pressure roller sandwiching the fixing belt to form a nip portion.

Unit and image forming apparatus for fixing a toner image with a developer including a brilliant toner containing a flat brilliant pigment

An electrophotographic photoreceptor includes: a conductive base body and a photosensitive layer, in which an outermost surface layer of the electrophotographic photoreceptor contains fluorine-containing resin particles, and in which a fluorine atom concentration at a surface of the outermost surface layer is 1.5 to 5.0 times a fluorine atom concentration at a depth of 1 &#x3bc;m from the surface of the outermost surface layer, or in which a number density ratio of aggregates of the fluorine-containing resin particles in a second region defined in this specification, to aggregates of he fluorine-containing resin particles in a first region defined in this specification is less than 0.95, and a ratio of an area ratio of the fluorine-containing resin particles in the second region, to an area ratio of the flourine-containing resin particles in the first region is within a range of 1&#xb1;0.1.

Electrophotographic photoreceptor, process cartridge, and image forming apparatus

A conductive member includes a substrate, an elastic layer on the substrate, and a surface layer on the elastic layer. The surface layer contains a resin and insulating particles. The insulating particles account for 50% or more and 70% or less of an area of a cross-section of the surface layer taken in a thickness direction.

Conductive member, process cartridge, and image forming apparatus

A conductive member includes a substrate, an elastic layer formed on the substrate, and a surface layer formed on the elastic layer, wherein the surface layer has a sea-island structure that includes a sea portion at least containing a first resin and a conductive agent and island portions at least containing a second resin, the island portions have an average diameter of approximately at least 100 nm and not greater than 1/10 of the thickness of the surface layer, and the conductive agent contained in the sea portion is unevenly distributed in the vicinity of the interface of the sea portion with the island portions.

Conductive member, charging device, process cartridge, and image forming apparatus

A tubular member includes a resin layer containing a thermoplastic resin and a conductive material, and the resin layer forming a sea part in which the thermoplastic resin becomes a matrix phase, wherein an area ratio of the sea part to a portion in a range of 5 &#x3bc;m respectively to a front surface portion side and a rear surface portion side with a central portion of the resin layer in a thickness direction as a center is greater by 3% to 15% than a greater area ratio between an area ratio of the sea part to a portion in a range of 10 &#x3bc;m from a front surface portion of the resin layer in the thickness direction and an area ratio of the sea part to a portion in a range of 10 &#x3bc;m from a rear surface portion in the thickness direction.

Tubular member, tubular member unit, intermediate transfer member, and image forming apparatus

An electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer that includes a phthalocyanine pigment, a charge-transporting substance and at least one kind of lignophenol derivative.

Electrophotographic photoreceptor, process cartridge and image-forming apparatus

A hydroxygallium phthalocyanine pigment is characterized by having a maximum peak wavelength within a range of from 810 nm to 839 nm in optical absorption spectrum in a wavelength range of from 600 nm to 900 nm.

Hydroxygallium phthalocyanine pigment and process for the production thereof, electrophotographic photoreceptor, process cartridge, electrophotographic device and image formation method

An electrophotographic photoreceptor having, between an electroconductive substrate and a photosensitive layer, an interlayer which contains fine metal oxide particles and a binder resin and which, when an electric field of 10 V/m is applied thereto at 28&deg; C. and 85% RH, has a volume resistivity of from 10 to 10 &OHgr;&middot;cm and, when an electric field of 10 V/m is applied thereto at 15&deg; C. and 15% RH, has a volume resistivity which is up to 500 times the volume resistivity thereof as measured when an electric field of 10 V/m is applied thereto at 28&deg; C. and 85% RH.

Electrophotographic photoreceptor, processes for producing the same, process cartridge, and electrophotographic apparatus

Growing community of inventors

Kanagawa, Japan

Yukiko Kamijo