Canon Kabushiki Kaisha

Masayuki Onuma

Takeshi Suzuki

Masaaki Takahashi

Akeshi Asaka

Yusuke Baba

Yutaka Arai

Shigeaki Takada

Kaoru Okamoto

Yukio Sasame

Shuichi Tetsuno

Kazuo Kishino

Haruki Mori

Atsushi Hori

Masahito Omata

Shoji Umehara

Masahiro Takenaga

Shota Inoue

An electrophotographic member comprising: a base material; an elastic layer on the base material; and a surface layer on the elastic layer, wherein the elastic layer comprises silicone rubber, the surface layer comprises fluoro rubber, a thickness of the surface layer is 3 μm or more, an elastic deformation power ηIT calculated from a load displacement curve, obtained with a nanoindentation test according to ISO 14577 by bringing a Vickers indenter into contact with an outer surface of the surface layer and setting a test load at 120 μN, is 30 to 50%, and a Martens hardness determined by the nanoindentation test at the outer surface of the surface layer is 12.0 to 18.0 N/mm.

Electrophotographic member and electrophotographic image forming apparatus

An electrophotographic member includes a base layer, an elastic layer, and a surface layer stacked in this order. The surface layer contains a fluorine resin and a fluorine rubber, the fluorine rubber is contained at a proportion of 0.5 parts by mass or more and 1.0 parts by mass or less with respect to 1 part by mass of the fluorine resin, and the surface layer further contains a compound represented by formula (1):CH(CH)—O—((CH)O)—OH  (1)In formula (1), m, l, and n each independently represent an integer of 1 or more.

Electrophotographic member and electrophotographic image-forming apparatus

One end portion of a resin tube kept in a diameter expanded state by a plurality of diameter expanding claws is disengaged from the diameter expanding claws and is shifted onto an outer peripheral surface of a die by applying a pressing force toward the other end portion of the resin tube to an end surface of the one end portion of the resin tube.

Method for fixing resin tube to die and manufacturing method for resin-tube covered roller

A rotatable fixing member includes an elastic layer, a primer layer provided on the elastic layer, and a parting layer provided on the primer layer. The primer layer contains a crystalline fluorocarbon polymer having a functional group and has a thickness of 850 nm or less. The parting layer is a coating layer of a crystalline fluorocarbon polymer.

Rotatable fixing member, manufacturing method thereof and fixing device

Growing community of inventors

Matsudo, Japan

Masayuki Onuma