Canon Kabushiki Kaisha

Canon Kasei Kabushiki Kaisha

Hiroyuki Osada

Atsushi Tanaka

Hiroshi Inoue

Akira Shimada

Tsunenori Ashibe

Minoru Shimojo

Atsushi Ikeda

Hidekazu Matsuda

Tomohito Taniguchi

Noriaki Kuroda

Takeo Yamamoto

Fumihiro Arahira

Shinji Doi

Tetsuya Kuribayashi

Takao Honda

Seiji Tsuru

Hisao Kato

Toshihiro Otaka

Atsushi c/o Canon Kasei Kabushiki Kaisha Ikeda

Toshihiro c/o Canon Kasei Kabushiki Kaisha Otaka

In a conductive member having a support and provided thereon at least one cover layer, the cover layer has a surface layer, and the surface layer contains fine particles. In the surface layer, fine particles present at the surface-layer lower part corresponding to a range within 30% of the total layer thickness from the lowermost plane have an average particle diameter which is larger than the average particle diameter of fine particles present at the surface-layer upper part corresponding to a range within 30% of the total layer thickness from the uppermost plane. A process cartridge and an electrophotographic apparatus have such a conductive member.

Conductive member, and process cartridge and electrophotographic apparatus which make use of the same

An intermediate transfer member for receiving a toner image formed on a first image-bearing member and transferring the toner image onto a second image-bearing member has a surface coated with at least one of a nitrate ion adsorbent and a compound having a layer structure, whereby a scattering of toner particles during a successive image formation is effectively suppressed for a long period.

Intermediate transfer member and image forming apparatus

An image forming apparatus has a first image bearing member and an intermediate transfer member onto which a toner image formed on the first image bearing member is primarily transferred and through which the toner image thus transferred is secondarily transferred onto a second image bearing member. The intermediate transfer member has a surface layer on a base layer and the surface layer contains a polyurethane resin obtained by the reaction of an olefinpolyol with an isocyanate.

Image forming apparatus and intermediate transfer member

An image forming apparatus has a first image bearing member and an intermediate transfer belt onto which a toner image formed on the first image bearing member is primarily transferred is secondarily tranferred onto a second image bearing member. The intermediate tranfer belt has, in its non-image forming region, a tape having a volume resistivity of 10.sup.10 .OMEGA..multidot.cm or above, a bond strength of 0.5 kg or above and a breaking extension of 5% or more.

Image forming apparatus and intermediate transfer belt

The present invention concerns an image forming apparatus for forming a toner image on a transfer medium by use of an intermediate transfer belt, and also the intermediate transfer belt itself. The intermediate transfer belt has an elastic layer JIS-A hardness of which is 85.degree. or less and at least one covering layer formed on the elastic layer. A relative permittivity .epsilon. and thickness t (.mu.m) of the at least one covering layer satisfy relations of .epsilon..ltoreq.6 and t.gtoreq..epsilon., and the intermediate transfer belt includes a fiber. The effects of this .epsilon. value and the fiber inside enabled to suppress scattering of toner well.

Intermediate transfer belt and image forming apparatus adopting the belt

A charging device includes a movable member to be charged; a charging member contactable to the member to be charged to electrically charge the member to be charged; a discharging device, disposed upstream of a contact portion between the charging member and the member to be charged with respect to a movement direction of the member to be charged, for electrically discharging the member to be charged at a portion adjacent to the contact portion.

Charging member and image forming apparatus having contact charging

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Numazu, Japan

Hiroyuki Osada