Kyocera Document Solutions Inc.

Mita Industrial Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Kyocera Mita Corporation

Sakae Saito

Yasuhiro Oishi

Yasufumi Mizuta

Toshiyuki Fukami

Tamotsu Shimizu

Masashi Fujishima

Yukimasa Watanabe

Yuji Kamiyama

Hideo Nakamori

Shizuka Okada

Hirofumi Kawaguchi

Chikara Ishihara

Yuji Tanaka

Akihiro Watanabe

Keisuke Sumida

Fumio Sugai

Yasuhiro Tauchi

Yoshinobu Yoneima

Ichiro Yamazato

Hiroshi Takemoto

Eiichi Miyamoto

Kazunari Hamasaki

Mikio Kakui

Keizo Kimoto

Maki Uchida

Nariaki Muto

Atsushi Fujii

Tomoya Shimura

Mitsuo Ihara

Hiroaki Sakai

Akiyoshi Urano

Hisakazu Uegaito

Hiroshi Shiomi

Syoji Itsumi

Satoru Inoue

Hiroshi Ito

Hiroaki Iwasaki

Masashi Tanaka

Yu Sasaki

Yasuyuki Hanatani

Yoshimi Shimizu

Nobuko Akiba

Shinichi Arita

Syunichi Matsumoto

Shunichi Sato

Makoto Kitagawa

Hirokazu Katakame

In a data input device according to one aspect of the present invention, a position detection unit detects a first position based on a position of one part of a body of a user represented in a video captured by an image capturing device and a second position based on a position of another part of the body. A drawing input detection unit establishes, based on the first position, an input detection region in which a drawing input is detected, and detects, based on whether or not the second position is included in the input detection region, the drawing input. A position-of-interest detection unit detects a position-of-interest corresponding to the second position on an image display plane. An image forming unit forms an image indicating a position-of-interest in a case that the drawing input detection unit detects the drawing input.

Data input device, data input method, and non-transitory computer readable recording medium storing data input program

A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. The roller main body includes an aluminum oxide thin film and a resin coat layer, the aluminum oxide thin film being formed on an outer circumferential surface of a base body that is made of a metal including aluminum, the resin coat layer being formed on a surface of the aluminum oxide thin film that has been subjected to a predetermined heating process, the resin coat layer being made of a resin material and having electric conductivity.

Developing roller, developing device, image forming apparatus, and manufacturing method of developing roller

A method of manufacturing a positively-charged single-layer electrophotographic photoreceptor including the steps of: producing a photosensitive layer application liquid containing a good solvent with respect to a binding resin and at least one organic solvent having a boiling point of 70&#xb0; C. or higher; and forming a photosensitive layer by coating a photosensitive layer support base having a wall thickness of 0.7 mm or less, with the photosensitive layer application liquid and then drying the photosensitive layer application liquid.

Method of manufacturing positively-charged single-layer electrophotographic photoreceptor, positively-charged single-layer electrophotographic photoreceptor, and image forming apparatus

A developing device supplies a developer to a photosensitive drum, which has a cylindrical shape, and is rotatable around an axis thereof for forming an electrostatic latent image on the circumferential surface thereof. The developing device is provided with a developing roller. The developing roller is disposed to face the photosensitive drum, and has a cylindrical shape. The developing roller is rotatable around an axis thereof for carrying a developer on the circumferential surface thereof. The developing roller is provided with a small diameter portion. The small diameter portion is a part of the circumferential surface of the developing roller. The small diameter portion extends from an axial end of the developing roller axially inward by a predetermined length, and has an outer diameter smaller than an axially middle portion of the developing roller.

Developing device, and image forming apparatus provided with the same

A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. In the roller main body, a boehmite layer has been formed on an outer circumferential surface of a base body that is made of a metal including aluminum, by a surface treatment by a boehmite method, and a resin coat layer has been formed on a surface of the boehmite layer, the resin coat layer being made of a resin material having electric conductivity.

Developing roller, developing device, and image forming apparatus including developing device

Disclosed is a positively-charged electrophotographic photoreceptor which uses a tubular photosensitive layer support base with a wall thickness of (t), wherein (t) is 0.7 mm or less, a chamfer angle (a) of an end surface of the photosensitive layer support base is 30&#xb0; or more and 60&#xb0; or less with respect to a longitudinal tangent of a surface of a tubular photosensitive layer support base, and an outer end surface-tail edge surface width (b) of the tubular photosensitive layer support base is 0.05 mm or more.

Positively-charged single-layer electrophotographic photoreceptor and image forming apparatus

Developing device includes developing roller and magnetic roller. Developing roller includes aluminum oxide thin film and resin coat layer. Magnetic roller is disposed to face, without contact, outer circumferential surface of developing roller, and includes aluminum oxide thin film formed on outer circumferential surface of base body that is made of metal including aluminum. Magnetic roller forms toner layer on surface of developing roller via magnetic brush composed of toner and magnetic carrier. AC impedance Z1 is in range from 1.0&#xd7;10&#x3a9; to 1.0&#xd7;10&#x3a9; and surface roughness Ra of resin coat layer is in range from 0.057 &#x3bc;m to 0.280 &#x3bc;m, AC impedance Z1 being obtained when AC voltage at predetermined frequency is applied to between base body of magnetic roller and base body of developing roller in a state where the magnetic brush is formed on magnetic roller.

Developing device, image forming apparatus

The present disclosure relates to a developing roller having a conductive support base, a surface of which is covered with a resin layer, wherein the resin layer contains conductive fine particles and soluble nylon serving as a binder resin, and the resin layer surface has a surface roughness Ra of at least 0.4 &#x3bc;m, a waviness curve cycle of 50 to 400 &#x3bc;m, and a waviness curve height of 2 to 10 &#x3bc;m.

Developing roller and developing apparatus and image forming apparatus using the same

A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. A resin coat layer has been formed on an outer circumferential surface of the roller main body, the resin coat layer being made of a resin material having electric conductivity. A product of resistance component Rs [&#x3a9;] and electrostatic capacitance component Cs [F] in AC impedance Z of the roller main body is in a range from 2.79&#xd7;10to 6.77&#xd7;10, the AC impedance Z being obtained when an AC voltage of a predetermined frequency f is applied.

A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. The roller main body includes a resin coat layer that is formed on an outer circumferential surface of a base body that is made of a metal including aluminum, the resin coat layer being made of a resin material and having electric conductivity. An AC impedance Z obtained from an application of an AC voltage at a frequency in a range from 0.05 Hz to 100 Hz is equal to or higher than 100&#x3a9;, and a phase angle &#x3b8; satisfies a relationship of 0 rad&#x3c;&#x3b8;&#x3c;0.1 rad when a power factor is cos &#x3b8;=Za/Z.

In order to perform adjustment of relative positions between an optical system and imaging devices, a plurality of the imaging devices, a plurality of solid lenses that form images of the imaging devices, and a plurality of optical-axis control units that control the direction of optical axes of light incident to the imaging devices are included.

Image pickup apparatus and optical-axis control method

A base tube for an electrophotographic photoconductive member, is provided with a cylindrical body on which a photoconductive layer is formed; and a first slanting portion formed on a peripheral surface of an end portion of the cylindrical body, and slanting inward toward an end face of the end portion with respect to an axis of the cylindrical body. An axial length of the first slanting portion of the cylindrical body is within a range of 0.3 to 5 mm.

Base tube for electrophotographic photoconductive member, electrophotographic photoconductive member using the same, method for producing the same

The present invention provides a naphthoquinone derivative represented by the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as defined in the specification. An electrophotosensitive material containing this naphthoquinone derivative as an electron transferring material has high sensitivity.

Naphthoquinone derivative and electrophotosensitive material using same

Naphthoquinone derivative

The present invention provides a tryptoanthrinimine derivative represented by the general formula (Y): ##STR1## wherein R.sup.A to R.sup.M are as defined. Such a derivative of the general formula (Y) is superior in electron transferring capability. Accordingly, an electrophotosensitive material comprising a photosensitive layer containing this derivative (Y) is superior in sensitivity.

Tryptoanthrinimine derivative and electrophotosensitive material using

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Osaka, Japan

Sakae Saito