Ricoh Company, Ltd.

Panasonic Corporation

Yamanashi Electronics Co., Ltd.

Kohsuke Yamamoto

Takeshi Shintani

Daisuke Tomita

Kenji Honjoh

Norio Kudo

Takehide Mizutani

Hiroshi Nakai

Eiji Kurimoto

Kazuhisa Sudo

Hajime Suzuki

Ryuji Yoshida

Takaaki Ikegami

Keisuke Shimoyama

Hiroyuki Uenishi

Nobuyuki Koinuma

Shinya Karasawa

Kazuhiko Yuki

Shinya Tanaka

Yukiko Iwasaki

Shinichi Kawahara

Kunio Hasegawa

Yukio Fujiwara

Hiroshi Mizusawa

Takashi Sakamaki

Shinji Nohsho

Taichi Urayama

Mikio Ishibashi

Reki Nakamura

Megumi Ohtoshi

Mayumi Yoshihara

Mihoko Matsumoto

Keiichi Toiyama

Hideki Nakamura

Toshihiko Koizumi

Masumi Sato

Hidetoshi Kami

Mitsuteru Kataoka

Takeshi Takada

Kuniyori Takano

Takuya Sekine

Masaki Sukesako

Tokuya Ojimi

Kazuhiro Egawa

Tomohiko Taniguchi

Kenji Komito

Tadayoshi Uchida

Sho Akiyama

Tetsuya Sakuma

Takumi Shinohara

An image bearer protective agent is provided. The image bearer protective agent includes a fatty acid metal salt and an inorganic lubricant. The inorganic lubricant includes a first inorganic lubricant having a tap density of from 0.30 to 0.8 g/cm.

Image bearer protective agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge

A lubricant applicator includes a lubricant, a supply member contactable against the lubricant to supply the lubricant to a target, and a lubricant gauge to detect whether an amount of lubricant remaining is less than a threshold value. The lubricant gauge includes a rotary member rotatable about a shaft, a pressing member to press and rotate the rotary member as the lubricant is consumed, a contact part of the rotary member pressed by the pressing member, and a detection part of the rotary member opposite to the contact part across the shaft of the rotary member.

Lubricant applicator, image forming apparatus, and process cartridge

A lubricant supplying device used with a solid lubricant, includes a supplying member to supply lubricant taken from the solid lubricant to an object to be supplied with the lubricant, and a remaining amount detecting section to detect a remaining amount of the solid lubricant becoming below a predetermined value. A detection of the remaining amount of the solid lubricant is executed when an operation to supply the lubricant to the object to be supplied with the lubricant stops.

Lubricant supplying device, image forming apparatus and process cartridge

A powder conveying device, including: a powder conveying path including a curved portion; and a conveying screw, wherein the conveying screw is disposed in the powder conveying path, and includes: a rotation axis portion having flexibility; and a blade portion, where the blade portion is helically formed on an outer periphery of the rotation axis portion, and is configured to convey a powder, wherein the conveying screw includes a conveying screw curved portion located in the curved portion of the powder conveying path, and wherein at least a surface of the blade portion of the conveying screw curved portion includes a slipping layer containing a silicon-containing compound.

Powder conveying device, process cartridge, and image forming apparatus

An image carrier surface treatment device is disposed opposite an image carrier rotatable in a first rotation direction and carrying a toner image. The image carrier surface treatment device includes a roller rotatable in a second rotation direction while contacting an outer circumferential surface of the image carrier. The roller includes a shaft projecting from each lateral end of the roller in an axial direction thereof. A rolling-element bearing is fitted on the shaft of the roller to support and position the roller inside the image carrier surface treatment device.

Image carrier surface treatment device, process cartridge, and image forming apparatus

A protecting agent-supplying device including: a rotation member configured to rotate in a certain direction; an image bearing member-protecting agent containing a fatty acid metal salt and an inorganic lubricant, and being in the form of a solid, wherein the agent is scraped off by the rotation of the rotation member, supplied to an image bearing member for protection thereof, and disposed to have a surface facing the rotation member, which surface has a width G in a direction along the certain direction, and wherein the position X (a center of the width G) is located upstream in the direction along the certain direction from the position Y (a line of intersection between the surface facing and a line extended from the rotational center of the rotation member perpendicular to the surface facing), and a distance d between these positions satisfies a formula 0&#x3c;d&#x2266;G/2.

Protecting agent-supplying device, process cartridge, image forming apparatus

Disclosed is a digital broadcast receiver which includes a TS processing unit. The TS processing unit comprises reference packet detection units (), that detect timing information of two sets of received TS packet data, a delay adjustment unit () that aligns the processing timings of both sets of TS packet data by delaying one of the two sets of TS packet data based on the detected timing information, and a selection unit () that selects by packet one of the two sets of TS packet data for output.

Digital broadcast receiving apparatus and digital broadcast receiving method

To provide a protecting agent supplying member, containing a core, and a foam layer formed on a periphery of the core, wherein the protecting agent supplying member is in the shape of a roller, and wherein the foam layer has concavities regularly arranged in a surface thereof.

Protecting agent supplying member, protective layer forming device, and image forming apparatus

The text information presentation device calculates an optimum readout speed on the basis of the content of text information being input, its arriving time, and its previous arriving time; speech-synthesizes text information being input, at the readout speed calculated; and outputs it as an audio signal, or alternatively controls the speed at which a video signal is output according to an output state of the speech synthesizing unit.

Character information presentation device

An electrophotographic photoconductor including a conductive substrate and a photoconductive layer thereover, wherein the photoconductive layer contains a charge generation agent and a charge transport agent represented by General Formula (A-I), (B-I) or (C-I), and an amine compound represented by General Formula (II):    

Electrophotographic photoconductor, and electrophotographic method, electrophotographic apparatus and process cartridge containing the electrophotographic photoconductor

An image forming apparatus including an image bearing member having a photosensitive layer and the surface including concave portions having a concave diameter of from 5 to 200 &#x3bc;m, an irradiation device that irradiates the surface of the image bearing member with light to form a latent electrostatic image thereon, a development device that develops the latent electrostatic image with a development agent containing toner to obtain a visualized image, a transfer device that transfers the visualized image to a transfer medium, a first cleaning brush to which a bias is applied with a polarity reverse to that of the toner remaining on the surface of the image bearing member after the visualized image is transferred, and a second cleaning brush to which a bias is applied with the same polarity as that of the toner remaining on the surface of the image bearing member.

Image forming apparatus, image bearing member, and method of manufacturing image bearing member

An electrophotographic photoreceptor including a conductive substrate, a photosensitive layer, and a surface layer, which satisfies the following inequations:0.005&#x3c;()&#x3c;0.03&#x2003;&#x2003;(i)0.010&#x3c;()&#x3c;0.03&#x2003;&#x2003;(ii)0.005&#x3c;()&#x3c;0.20&#x2003;&#x2003;(iii)()&#x3e;()&#x2003;&#x2003;(iv)()&#x3e;()&#x2003;&#x2003;(v)wherein WRa (&#x3bc;m) represents a center-line average roughness of frequency components LHH, LHL, LMH, LML, LLH, and LLL that are obtained by subjecting a one-dimensional data array of a surface profile of the electrophotographic photoreceptor to wavelet transformation multiresolution analysis so as to be separated into 6 frequency components; thinning a one-dimensional data array of the lowest frequency component so that the number of data array is reduced to 1/40; and subjecting the thinned one-dimensional data array to wavelet transformation multiresolution analysis so as to be separated into the 6 frequency components LHH, LHL, LMH, LML, LLH, and LLL.

Electrophotographic photorecptor, method of manufacturing electrophotographic photorecptor, image forming apparatus, and process cartridge

An electrophotographic photoconductor including an electroconductive support and a photoconductive layer provided thereon, wherein the photoconductive layer includes a charge generating material, an electron transporting material and a hole transporting material, the electron transporting material being a diphenoquinone compound represented by formula (1) described herein, the hole transporting material being a compound represented by formula (2) described herein.

Electrophotographic photoconductor

Growing community of inventors

Kanagawa, Japan

Kohsuke Yamamoto