Fuji Xerox Co., Ltd.

Fujifilm Business Innovation Corp.

Fuji Xerox Corporation

Takuro Hoshio

Minoru Rokutan

Shogo Hayashi

Hiroyuki Miura

Taketoshi Hoshizaki

Kosuke Narita

Michiaki Yasuno

Hitoshi Okazaki

Masayuki Okoshi

Jiro Korenaga

Naoki Ohta

Nagahito Ichijo

Noboru Wada

Takuya Morishige

Kenji Inoue

Jun Kimura

Masato Furukawa

Satoya Sugiura

Makoto Ochiai

Taichi Yamada

Fumio Ojima

Makoto Takemoto

Yasuhiko Kinuta

Shogo Tomari

Kenji Omori

Ryosuke Fujii

Yoshiteru Yamada

Hiroyuki Fukuda

Yoshihiro Maekawa

Yoshiyuki Hayashi

Shoichi Masuda

Yasuhiro Niida

Takahiko Hattori

Yoshinori Kubo

Keiko Ono

Masayuki Ohkoshi

Eiichi Iida

A conductive roller includes a support member, an elastic layer disposed on an outer peripheral surface of the support member, and a surface layer disposed on an outer peripheral surface of the elastic layer. The elastic layer includes a cylindrical elastic foam and a conductive covering layer covering an exposed surface of the elastic foam, and the elastic layer has a hysteresis loss of 44% or less.

Conductive roller, transfer device, process cartridge, and image forming apparatus

A transfer device includes an intermediate transfer belt that has an outer peripheral surface to which a toner image is to be transferred, a primary transfer device that has a primary transfer member performing primary transfer of a toner image formed on a surface of an image holder to the outer peripheral surface of the intermediate transfer belt, and a secondary transfer device that has a secondary transfer belt arranged in contact with the outer peripheral surface of the intermediate transfer belt and performing secondary transfer of the toner image transferred to the outer peripheral surface of the intermediate transfer belt to a surface of a recording medium, in which the intermediate transfer belt has an indentation modulus A of 5,000 MPa or more, and the secondary transfer belt has an indentation modulus B of 300 MPa or less and a tensile modulus C of 250 MPa or more.

Transfer device and image forming apparatus

A conductive roller includes a support member, an elastic layer disposed on an outer peripheral surface of the support member, and a surface layer disposed on an outer peripheral surface of the elastic layer. The elastic layer includes a cylindrical elastic foam and a conductive covering layer covering an exposed surface of the elastic foam and has a volume resistance value of 10&#x3a9; or less at an applied voltage of 10 V. The elastic foam has a conductive particle content of 1% by mass or less based on the total mass of the elastic foam.

A conductive roll includes a support member, an elastic layer disposed on an outer peripheral surface of the support member, a surface layer disposed on an outer peripheral surface of the elastic layer, and an intermediate layer disposed between the elastic layer and the surface layer, the intermediate layer having a Poisson ratio of 0.40 or less.

Conductive roll, transfer device, process cartridge, and image forming apparatus for image transfer

A conductive roller includes a support member, an elastic layer disposed on an outer peripheral surface of the support member, and an outer layer disposed on an outer peripheral surface of the elastic layer. The elastic layer includes a cylindrical elastic foam and has a Young&#x25a1;s modulus of 150 kPa or less.

A conductive roll includes a support member, an elastic layer disposed on an outer peripheral surface of the support member, and a top layer disposed on an outer peripheral surface of the elastic layer. In a case where a pushing amount of a metal roll into the conductive roll is 1.7%, the metal roll having an outer diameter identical to an outer diameter of the conductive roll, a shrinkage rate of a surface of the conductive roll with respect to the outer diameter of the conductive roll is equal to or more than 5%.

Conductive roll, transfer device, process cartridge, and image forming apparatus

A fixing member includes a substrate, an elastic layer on the substrate, and a surface layer on the elastic layer. The surface layer has transverse microhardness values within the range of 85 to 89, inclusive, and a transverse filtered maximum waviness (Wcm) of 0.1 &#x3bc;m or more and 4 &#x3bc;m or less.

Fixing member, method for producing fixing member, fixing device, and image forming apparatus

A charging member includes a conductive substrate and a surface layer disposed on the conductive substrate. The surface layer includes an inorganic conductant agent including a metal and an organic conductant agent that includes a coordinating atom capable of coordinating to the metal and that has a molecular weight of 400 or less.

Charging member, process cartridge, and image forming apparatus

A charging member includes a conductive support and an outermost layer disposed on the conductive support. The outermost layer includes porous silica and an N-alkoxymethylated polyamide and has a gel fraction of 50% or more and a surface roughness Rz of 2 &#x3bc;m or more and 20 &#x3bc;m or less.

An elastic member includes a support and an elastic layer on the support. The elastic layer contains a rubber material and a softener having a number average molecular weight Mn of about 600 to about 1,000 and a ratio (Mw/Mn) of weight average molecular weight Mw to number average molecular weight Mn of about 2.5 or less.

Elastic member, process cartridge, and image-forming apparatus

A charging member includes a conductive support and a surface layer provided on the conductive support, wherein electron emitting energy on a surface of the charging member is equal to or less than 10 cps/eV.

A charging roller includes a conductive base material, a conductive adhesive layer that has a gel fraction equal to or greater than 50% on an outer circumferential surface of the base material, and a conductive elastic layer on the adhesive layer.

Charging roller, process cartridge, and manufacturing method of charging roller

A charging member includes a conductive base material and a conductive outermost layer provided on the conductive base material, wherein the conductive outermost layer has a ten-point average surface roughness Rz of 2 &#x3bc;m to 20 &#x3bc;m and contains a resin and particles in which particles having a particle diameter of 5.0 &#x3bc;m or more and a circularity of 0.8 or less are 30% by number or less with respect to the total number of particles having a particle diameter of 5.0 &#x3bc;m or more and particles having a particle diameter of less than 5.0 &#x3bc;m and a circularity of 0.8 or less are from 20% by number to 80% by number with respect to the total number of particles having a particle diameter of less than 5.0 &#x3bc;m.

A charging roll includes a cylindrical base member that has a metal-containing surface, a conductive adhesive layer that includes a halogen atom-containing resin and has surface roughness Rz in a range of 0.5 &#x3bc;m to 8 &#x3bc;m on an outer peripheral surface side on the base member, and a conductive elastic layer that is disposed to be brought into contact with the outer peripheral surface of the conductive adhesive layer and includes a halogen atom-containing rubber.

Charging roll, charging unit, process cartridge, image forming apparatus, and method of manufacturing charging roll

A charging member includes a substrate and an outermost layer that is on the substrate, is in contact with a member to be charged, and contains a cross-linking fluorocarbon siloxane rubber composition, wherein the charging member charges the member to be charged by being brought into contact with the member to be charged while a voltage is applied.

Growing community of inventors

Kanagawa, Japan

Takuro Hoshio