Sony Corporation

Ricoh Company, Ltd.

Sony Deutschland Gmbh

Sony International (europe) Gmbh

Dai Nippon Printing Co., Ltd.

Shunichi Hashimoto

Hideki Zemba

Tomoko Takahashi

Masahiko Satoh

Masanori Kawasumi

Takeshi Matsui

Mugijirou Uno

Tadaaki Isozaki

Mikio Ishibashi

Naoyuki Ozaki

Yoshinori Nakagawa

Takeshi Uchitani

Eisaku Murakami

Yoshinori Tanaka

Shin Kayahara

Ryuji Yoshida

Nobuyuki Koinuma

Yoshiyuki Kimura

Eiji Shimojo

Akira Masutani

Akira Kawamura

Yoshitaka Ochiai

Hideaki Kanaya

Minako Sugiura

Akio Yasuda

Akira Shinshi

Hiroaki Maeda

Kazuhisa Sudo

Koji Ashizaki

Hidetoshi Watanabe

Masaharu Furuya

Hirokatsu Suzuki

Takuji Yoshida

Osamu Akimoto

Hirotsugu Suzuki

Hirohmi Tamura

Takuya Suganuma

Anthony Roberts

Kazuya Saitoh

Tomotaka Ito

Takeshiro Nakatsue

Hiroyuki Sugiyama

Kayoko Tanaka

Eriko Matsui

Katsutoshi Ohno

Kohta Fujimori

Yoshiaki Kumagai

Yutaka Narita

Koichi Aso

Kenichi Taguma

Hideki Matsuda

Tadashi Kiyomiya

Hideki Zenba

Yuji Nakatsugawa

Takehiro Nagaki

Daisuke Yokoyama

Bettina Schueller

Akihisa Noda

Tetsuya Senoh

Saki Izumi

Hidenori Ishikawa

Akihiko Tsurishima

Bettina Schüller

Shoko Miyamoto

Kensuke Fijimoto

Makoto Susukida

An image forming apparatus includes a latent image bearer to rotate, an image forming unit including a charger and a developing device, a charge power supply to output a charging bias applied to a charger, a transfer device, a toner adhesion amount, and a controller. The controller causes the image forming unit to form a background fog pattern in a background area of the latent image bearer while changing a background potential, acquires toner adhesion amount values detected at different positions of the background fog pattern, having different potentials, sorts the toner adhesion amount values in an order of the background potential, determines a relation between the background potential and background fog amount based the toner adhesion amount values except any toner adhesion amount value out of monotonicity, and adjust the charging bias to an optimum value computed based on the determined relation.

Image forming apparatus and charging bias adjusting method therefor

An image forming apparatus including a conveyance unit to convey a transfer medium, a first image forming unit to form a monochrome image transferred at a first transfer position onto the transfer medium, and a second image forming unit disposed downstream from the first image forming unit in a direction of conveyance of the transfer medium, including an intermediate transfer body to form a multi-colored toner image on the intermediate transfer body. The multi-colored toner image is transferred onto the transfer medium at a second transfer position. The conveyance unit is separated from the intermediate transfer body at the second transfer position in a monochrome mode to form the monochrome image using only the first image forming unit, and contacts the intermediate transfer body at the second transfer position in a full-color mode to form a full-color image using both the first and second image forming units.

Image forming apparatus having support members with predetermined electric potentials

An image forming apparatus including a fixing liquid applicator to apply a fixing liquid to a recording medium, a transfer device to transfer a toner image from a toner image bearing member onto the recording medium to which the fixing liquid is applied while the toner image is in contact with the fixing liquid, and a fixing device to fix the toner image on the recording medium by heating the toner image and the fixing liquid. The fixing liquid comprises a plasticizer having a function to swell and soften a toner.

Image forming apparatus with fixing liquid applicator

An image forming apparatus includes a fixing liquid applicator to apply a fixing liquid to a recording medium before a toner image is transferred on the recording medium, a transfer device to transfer a toner image from a toner image bearing member onto the recording medium applied with the fixing liquid, and a fixing device to fix the toner image on the recording medium by heating. The fixing liquid applicator includes an application member disposed opposing a face of the recording medium on which the toner image is transferred to apply to the recording medium the fixing liquid borne on a surface of the application member, a supply unit to supply the fixing liquid to the application member, and a sealing device to form along with the application member a sealed space in which the supply unit and the fixing liquid to be supplied to the application member are sealed.

Image forming apparatus including sealed fixing liquid applying section

An image forming apparatus, including a fixing liquid applicator applying a fixing liquid including a plasticizer swelling and softening a toner forming a toner image to fix on a recording medium thereto before bearing the toner image; a transferer transferring the toner image on a toner image bearer onto the recording medium while contacting the toner image to the fixing liquid thereon; and a fixing device heating the toner image and the fixing liquid to fix the toner image thereon, wherein the fixing liquid applicator comprises an application member bearing the fixing liquid on its surface and apply the liquid on a surface of the recording medium the toner image is transferred onto; a feeder feeding the fixing liquid to the application member; and an inducement mechanism inducing the fixing liquid pooling at a delivery point where the feeder feeds the fixing liquid to the application member out of the point.

Image forming apparatus

A reflection type liquid crystal display device comprises a glass substrate provided with a transparent electrode, and an Si driving circuit substrate provided with a light reflecting electrode, the glass substrate and the Si driving circuit substrate being disposed opposite to each other so that the transparent electrode and the light reflecting electrode are opposed to each other, with a liquid crystal layer composed of vertically aligned liquid crystals being interposed therebetween, wherein at least the condition of d&#xb7;&#x394;n&#xb7;|&#x394;&#x2208;|&#x2267;5 is satisfied, where d (&#x3bc;m) is the thickness of the liquid crystal layer, &#x394;n is the refractive index anisotropy of the vertically aligned liquid crystals, and |&#x394;&#x2208;| is the magnitude of the dielectric constant anisotropy of the vertically aligned liquid crystals.

Reflection type liquid crystal display device, display apparatus, and projection system

By using a black-image forming device, an abrasive pattern is formed on a sheet conveying belt so that toner is input to a contact section where a cleaning blade is in contact with the sheet conveying belt. After the toner is input to the contact section where the cleaning blade is in contact with the sheet conveying belt and then the sheet conveying belt makes one or more revolutions, a process control is performed in which Y, M, and C toner patterns and B toner pattern are transferred onto the sheet conveying belt.

An image forming apparatus includes a first image carrier, a second image carrier, an intermediate transfer member disposed facing the second image carrier, a conveyance belt to transport a transfer sheet, disposed facing both the first image carrier and the intermediate transfer member, a first transfer member to transfer a first toner image formed on the first image carrier onto the transfer sheet, a second transfer member to transfer a second toner image formed on the second image carrier onto the intermediate transfer member, and a third transfer member disposed downstream from the second image carrier in a rotation direction of the intermediate transfer member, to transfer the second toner image from the intermediate transfer member onto the transfer sheet transported by the conveyance belt. The first image carrier and the intermediate transfer member inflect the conveyance belt at a first inflection angle and a second inflection angle, respectively.

Image forming apparatus preventing gaps between a conveyor belt and transfer sheet

There is provided a liquid crystal display element () including a transparent substrate () having formed on a surface of a glass substrate () thereof a transparent electrode () and an alignment layer () covering the transparent electrode (),

Liquid crystal display element, and liquid crystal display device

An image forming apparatus includes a first image formation unit that forms a black toner image, and a detachable second image formation unit that forms a color toner image. A first toner supply unit is provided to supply the black toner to the first image formation unit. A second toner supply unit is provided to supply one of a black and component color toner to the first and second image formation units in accordance with a color mode. A first conveyance path is provided to convey the black toner to the first image formation unit. A second conveyance path is also provided to convey the component color toner stored in the second toner container section to the second image formation unit. The second toner supply unit is selectively connected to one of the first and second conveyance paths in accordance with the color mode.

Recycling image forming apparatus

A novel development device includes a developer roller, a developer reservoir, a rotatable conveyor, and a replenisher unit. The developer roller is configured to supply toner particles to the electrostatic latent image. The developer reservoir is configured to hold the developer therewithin for application to the developer roller. The rotatable conveyor is configured to rotate within the developer reservoir to convey the developer toward the developer roller. The replenisher unit has a tubular member terminating at a port opening in the developer reservoir. The replenisher unit is configured to direct a particulate material through the tubular member into the developer reservoir via the port. The particulate material is toner particles, carrier particles, or a mixture of toner particles and a given amount of carrier particles. The port is submerged in the developer within the developer reservoir as the rotatable conveyor rotates.

Development device, process cartridge, and image forming apparatus using the development device

A superior reflex type vertically-aligned liquid crystal display device wherein the refractive index anisotropy &#x394;n of its liquid crystal material is controlled to be more than 0.1, and the transmissivity of the liquid crystal is saturated with facility at a low voltage below 6V despite a reduction of the thickness of the vertically-aligned liquid crystal layer to less than 2 &#x3bc;m, hence achieving satisfactory driving at a practically low voltage while attaining another advantage of remarkable improvement in the transmissivity itself. Therefore, the display device indicates a sufficient transmissivity, an excellent low-voltage driving characteristic and a fast response. Further improvements are realizable in a display apparatus, a projection optical system and a projection display system by the use of such display device.

Reflex liquid crystal display device, display apparatus, projection optical system, and projection display system

The invention refers to a composition comprising a liquid crystal material and an additive, preferably a dopant capable of forming a complex with said LC material, to a liquid crystal cell comprising this composition, uses thereof and to a method of improving the response time of a liquid crystal.

Composition comprising a liquid crystal material and an additive

A transfer device is provided for an image forming apparatus designed such that toner images formed on a plurality of image bearing members are transferred one over another on a transfer body disposed in contact with each of the image bearing members with predetermined pressure and thus a toner image in two or more colors is formed on the transfer body. The transfer device includes a pressure varying mechanism which is capable of separating the transfer body from at least some of the image bearing members, and capable of varying transfer pressure between the image bearing members and the transfer body in contact with said image bearing members.

Transfer device and image forming apparatus

A method and an apparatus of controlling a charge voltage including the steps of applying, charging, detecting, and determining. The applying step applies an application voltage having a direct-current voltage and an alternating-current voltage superimposed onto the direct-current voltage to a charge-applying member to charge a charge carrier. The changing step charges the alternating-current voltage of the application voltage. The detecting step detects an alternating current flowing through the charge carrier when the charge-applying member applies the application voltage to the charge carrier. The determining step determines a value of the alternating-current voltage of the application voltage based on at least two alternating currents detected by the alternating-current detector.

Method and apparatus for image forming capable of effectively performing a charging process

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Kanagawa, Japan

Shunichi Hashimoto