Fuji Xerox Co., Ltd.

Sony Corporation

Other

Yukio Hara

Hiroshi Takahashi

Masahiro Kikuchi

Yoshiichi Horikoshi

Hiroto Watanabe

Ryouichi Yoshida

Masao Nakamura

Toshihiko Tomita

Shinichi Ishigame

Yasuo Matsumura

Tsuyoshi Miyamoto

Shigeru Fukuda

Jiro Watanabe

Isao Ito

Akiko Kimura

Tetsuya Kawatani

Shoichi Morita

Masuo Kuroda

Provided is a cleaning roll (conductive roll) including a core, a coating layer formed thereon, and a shaft along the axis of the core. The coating layer contains a bismaleimide resin and a conductive agent. Also provided are a cleaning unit, a process cartridge, and an image-forming apparatus employing the conductive roll. The conductive roll may include a core and a coating layer containing a bismaleimide resin and a conductive agent formed on the external peripheral surface of the core.

Conductive roll, cleaning roll, cleaning unit, process cartridge, and image-forming apparatus

It is possible to enhance the luminance of a cold-cathode type discharge lamp and to contribute to a prolongation of service life thereof. A discharge lampis provided with an electrodehaving a cupwith such a shape that a bottom is provided at each of both opposed ends of the glass tube. The cupis connected to a lead-in wirewhich is inserted through the end of the glass tubeand held thereby. The collision-preventing ringcovering an end surface of the cupis provided to the open endof the cup. The porous tungsten diskimpregnated with a ternary metal oxide composed of barium (Ba), aluminum (Al), and calcium (Ca) as an electron emission material is provided at a bottom in an inside of the cup

Discharge lamp and electrode for use in the same

An image forming apparatus uses toner that is given color-generation information and a color-generation state or a non-color-generation state of the toner is controlled, and includes an image carrier, a unit that forms toner image on the image carrier, an intermediate transfer medium that the toner image formed on the image carrier is transferred to, a first transfer unit that transfers the toner image to the intermediate transfer medium surface, a unit that gives color-generation information to the toner image transferred to the intermediate transfer medium, a second transfer unit that transfers the toner image transferred to the intermediate transfer medium surface to a recording medium, a unit that fixes the toner image transferred to the recording medium and a unit that causes color generation in the toner image that the color-generation information is given.

Image forming apparatus and image forming method

It is possible to prolong service life of a discharge lamp of hot-cathode type and to reduce a diameter thereof. A discharge lampis provided with an electrode. The electrodehas a heatermade up a coil portion, and a first lead wire portionand a second lead wire portionthat respectively extend from rear ends of this coil portionand applied by an electron emission material. In the electrode, a first lead-in wiresis connected to the first lead wire portionand a second lead-in wiresis connected to the second lead wire portion, so that the coil portionis arranged vertically along the tube axis of the glass tube. The electrodeis also provided a sleevecovering surrounding of the coil portionand having openings in the faces respectively opposite to the forward end and rear end of the coil portion. An open endof the sleeveexceeds a forward end of the coil portion, thereby protecting the coil portion

Discharge lamp, method for manufacturing the discharge lamp electrode, lighting system

The invention provides a belt including a belt base having elasticity and a projection member having elasticity which is provided along at least one edge of the belt base so as to project from the belt base, and an adhesive layer which bonds the belt base and the projection member, wherein the ten-point average roughness Rz in the region of the belt base to be bonded with the projection member is about 4 &#x3bc;m or more and the ten-point average roughness Rz in the region of the projection member to be bonded with the belt base is about 6 &#x3bc;m or more.

Belt and image forming device using the same

A discharge lamp includes a glass tube having electrodes with an electron emissive material coated thereon, the electrodes being provided on respective ends of the glass tube, wherein the glass tube has a gas containing a luminescent material sealed therein and has a fluorescent material coated on its inner surface, the glass tube has a diameter less than 6.5 mm and the gas sealed into the glass tube is gases of more than one kind selected from an Ar (argon) gas , a Kr (krypton) gas and a Xe (xenon) gas or a mixed gas mainly made of gases of more than one kind selected from the Ar gas, the Kr gas and the Xe gas. Thus, the discharge lamp can reduce a diameter of its tube and it is able to provide high luminous efficiency.

Discharge lamp and illumination apparatus with gas fill

The invention provides an image-forming apparatus equipped with a toner container containing toner particles and an endless belt circulating in contact with image carriers carrying electrostatic latent images. The image-forming apparatus forms a toner image on a recording medium by developing an electrostatic latent image on an image carrier by supplying the toner particles thereto, transferring the toner image onto the surface of the belt and finally onto the recording medium, and fixing the toner image thereon. When the particle count distribution in diameter ranges of the toner particles is expressed by Smaller-side grain size distribution index GSDpS=(D50p/D16p), the toner container contains toner particles having a smaller-side grain size distribution index GSDpS of 1.24 or less; and the belt comprises a base support having a Young's modulus of 3,500 MPa or more and 9,000 MPa or less and a surface microhardness of 10 mN/&#x3bc;mor less.

The present invention provides a semiconductive belt including a substrate and a surface layer, wherein: the substrate contains a resin; the Young's modulus of the substrate is 1000 to 8000 MPa; the surface layer contains a lubricant component, a fibrous filling material, and an elastic material; and the durometer hardness of the surface layer is A30/S to A70/S.

Semiconductive belt and image forming apparatus using the semiconductive belt

The present invention provides an electrically conductive member including a core and a resin layer provided on an outer peripheral surface of the core, wherein the resin layer is made of a resin composition in which an electrically conductive agent is dispersed, and the abrasion amount of the resin composition, measured by JIS K6902, is 20 mg or less. Moreover, the present invention provides a unit for cleaning an image holding member, a process cartridge, and an image forming apparatus each using the electrically conductive member.

Electrically conductive member, unit for cleaning image holding member, process cartridge and image forming apparatus

The present invention relates to an intermediate transfer member having a polyimide resin film containing oxidized carbon black; and an image forming apparatus comprising an intermediate transfer member having a polyimide resin film containing oxidized carbon black.

Intermediate transfer member and image forming apparatus having the same

An electroconductive member contains an electroconductive composition using a thermoplastic elastomer material having advantages such as reduction in energy of production process thereof and capability of being recycled, and which makes it possible to prevent a change in resistance by sending an electric current, improve uniformity of electric resistance, and reduce dependency on an electric field and a resistance-change by environment. The electroconductive resin composition contains an epoxidized diene block copolymer; a thermoplastic elastomer other than the epoxidized diene block copolymer, a conductive agent and one of a thermoplastic resin and a compound having an amino group.

Electroconductive member and image forming apparatus using the same

A semiconductive member such as a semiconductive belt or a semiconductive roll used with an image formation apparatus has a portion formed of a thermoplastic elastomer composition comprising a thermoplastic resin as a matrix and rubber particles at least some of which have conductivity and at least some of which are cross-linked as domain.

Semiconductive member, semiconductive belt, semiconductive roll, and image formation apparatus

An intermediate transfer material which is disposed between a latent image-carrier and a recording medium and is primary-transferred thereon a toner image formed on the latent image-carrier, wherein the intermediate transfer material is formed by a polyimide resin having dispersed therein an electrically conductive agent and having a glass transition temperature of 245&deg; C. or lower, and an image-forming apparatus using the above-described intermediate transfer material. The intermediate transfer material does not give image defects such as white spots, etc., caused by lowering of resistivity by the influence of a transferring electric field.

Growing community of inventors

Minami-ashigara, Japan

Yukio Hara