Ricoh Company, Ltd.

Olympus Optical Company, Ltd.

Toshiba Tec Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Konica Corporation

Olympus Medical Systems Corporation

Olympus Corporation

Konica Minolta, Inc.

Konica Minolta Business Technologies, Inc.

Nissan Motor Company Limited

Showa Denko K.k.

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Ebara Corporation

Clarion Co

University of Tsukuba

Hiroshi Ishii

Makoto Kikura

Kazuosa Kuma

Yutaka Fukuchi

Kazuki Suzuki

Yuusuke Noguchi

Yuji Arai

Kohta Takenaka

Hisao Yabe

Ryuta Takeichi

Kiyonori Tsuda

Hiroshi Hosokawa

Minoru Yamazaki

Akira Suzuki

Masanori Kawasumi

Yoshihiro Iida

Yoshio Tashiro

Kazuhiko Umemura

Osamu Tamada

Satoshi Narumi

Hideo Ito

Masumi Sato

Hiroshi Saitoh

Toshihiro Sugiyama

Motokazu Yasui

Joh Ebara

Tomotoshi Nakahara

Toshihiro Shimada

Hiroyasu Shijo

Jun Hasegawa

Hiroki Moriyama

Yoshiyuki Kimura

Keisuke Shimizu

Akira Taniguchi

Yoshihide Ohta

Yasuo Hirata

Yoshinao Oaki

Katsuyoshi Sasagawa

Chieko Aizawa

Masakazu Fukuchi

Kiyoshi Kimura

Takeshi Yokoi

Kazutaka Tsuji

Koji Yamaya

Fumiyuki Onoda

Takeshi Kawabata

Sumihiro Uchimura

Susumu Kurihara

Masaaki Nakazawa

Masahiro Ishida

Hiroyuki Nagashima

Hideo Yoshizawa

Makoto Saito

Naoki Matsuda

Shinichi Murata

Makoto Suzuki

Takayuki Andoh

Atsushi Yoshida

Eiji Kurimoto

Eisaku Murakami

Yasuhito Kura

Toshikane Nishii

Tetsuo Nonami

Osamu Kizaki

Masaharu Furuya

Hideki Zemba

Hideki Hashimoto

Tomohiko Sasaki

Akiyoshi Tanaka

Masahiko Yamada

Keiichi Arai

Kazushige Kawamura

Mitsutaka Nakamura

Kouichi Takaki

Ayumu Hashimoto

Hiroyuki Shibaki

Shinichi Nakamura

Yuji Suzuki

Satoshi Muramatsu

Nobuo Kasahara

Nekka Matsuura

Koji Suzuki

Hideyasu Takato

Takeshi Suga

Toshiyuki Uchida

Susumu Takahashi

Noriaki Funamoto

Takahiro Yagishita

Takao Kurohata

Takashi Hodoshima

Kanae Amemiya

Hiroyuki Maruyama

Noboru Furuyama

Hiroaki Murakami

Yasuhisa Kitahara

Takahiro Kishi

Chie Miyauchi

Hiroki Shirado

Koji Takamura

Yoshiaki Okano

A cylinder head includes an intake-side wall part () that upwardly extends from a cylinder head lower surface (lb) coupled to a cylinder block; a port circumferential wall part () that forms therein an intake port () communicating with a combustion chamber () of an engine; an outer longitudinal rib () that projects from an outer surface of the port circumferential wall part () on a side of the cylinder head lower surface (lb); and a boss part () that is bulged from the intake-side wall part () on one end portion of the outer longitudinal rib (). The port circumferential wall part () includes a resin part disposed along an inner surface thereof. The outer longitudinal rib () extends in a direction away from the intake-side wall part () along a flow direction of intake air flowing inside the intake port (). The boss part () includes a hole part () that discharges gas in the intake port () when injection molding of the resin part is carried out.

Cylinder head

A cylinder head () disclosed herein includes a cylinder head main body () having an intake port () communicating with a combustion chamber () of an engine; and an insulation member () being arranged at an inner side of the intake port (), made of resin, and formed into an annular shape. A step part () is formed at a downstream side of the insulation member () in a flow direction of intake air in the intake port () such that the intake port () has a cross section perpendicular to the flow direction at the downstream side smaller than a cross section perpendicular to the flow direction at an upstream side of the flow direction; and an annular seal member () that seals a space between the insulation member () and the step part () is arranged between the insulation member () and the step part ().

A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.

Sound absorber, electronic device with sound absorbing device, and image forming apparatus with sound absorber

An image forming apparatus includes an image former, a fuser, a first sensor, and a processor. The image former is configured to form an image on a recording medium. The fuser is configured to fix the image on the recording medium. The first sensor is configured to detect a temperature of the fuser. The processor is configured to cause the recording medium to be supplied to the fuser after warming up the fuser to a warm up temperature. The processor is also configured to supply power to the fuser after causing the recording medium to be supplied to the fuser, an amount of the supplied power being based on the temperature detected before starting the warming up.

Image forming apparatus with image former and fuser

A mobile image forming apparatus includes a body, a recording device supported by the body and configured to form an image on a recording medium, a roller provided to the body and configured to rotate on the recording medium while the body is moved in a scanning direction for image formation. The mobile image forming apparatus further includes a switching device configured to switch a state of the mobile image forming apparatus during image formation between a roller contact state in which the roller is in contact with the recording medium and a roller contactless state in which the roller is contactless with the recording medium.

Image forming apparatus and image forming apparatus body

An image forming apparatus includes an image forming unit, a fixing device, and a control circuit. The control circuit acquires a selection signal indicating which mode is selected from among options. The options include at least two modes, including a first mode in which an image is formed using a non-decolorable first toner, a second mode in which the image is formed using a decolorable second toner, and a third mode in which the image is erased by heating a sheet on which the image is formed by the second toner using the fixing device at a decolorizing temperature. The control circuit sets a different standby temperature in accordance with the mode indicated by the selection signal, and controls a temperature of the fixing device to be the standby temperature, in a standby state before an operation start reception.

Image forming apparatus and control method of image forming apparatus with mode selection

A fixing device for fixing a toner image formed on an image receiving medium to the image receiving medium includes a heating rotation member, a heating element that heats the heating rotation member, a pressure rotation member pressed to the heating rotation member and forming a nip therebetween through which the image receiving medium passes, a pressure control device that controls a pressure at which the pressure rotation member abuts against the heating rotation member. A control device controls the heating element and the pressure control device to alternately perform a process for heating the heating rotation member while the pressure rotation member abuts against the heating rotation member and a process for heating the heating rotation member while the pressure rotation member is separated from the heating rotation member.

Fixing device and image forming apparatus

A mobile image forming apparatus includes a body; a recording device supported by the body and configured to form an image on a recording medium, and at least one roller provided to the body and configured to rotate on the recording medium while the body is moved in a scanning direction for image formation. The mobile image forming apparatus further includes at least one pressing member disposed in contact with the at least one roller and configured to press the at least one roller in a roller axial direction.

Image forming apparatus body and image forming apparatus

According to one embodiment, an image forming apparatus includes a fixing member, a pressurizing member, a movable member, and a controller. The fixing member heats a sheet. The pressurizing member has first heat capacity and faces the fixing member. The movable member is provided to be movable between a contact position to contact with the pressurizing member and a separation position to be separated from the pressurizing member, and has second heat capacity smaller than the first heat capacity. The controller is configured to move the movable member to one of the contact position and the separation position based on a change of a control temperature of the fixing member or the pressurizing member.

Image forming apparatus and image forming method

An image forming apparatus which includes a plurality of parts including a rotating unit and which uses the plurality of parts to form an image on a sheet is shown. The apparatus includes the following, a sheet conveyor, an image former, and an image reader. A hardware processor controls a conveying interval of the sheet by the sheet conveyor, controls the image former to form an image on the sheet and to output the sheet, detects a defect from the read image data, and diagnoses a failed part in which the defect is detected periodically based on information of the detected defect and a cycle of the part. When the failed part is diagnosed, the hardware processor controls the image former to form an image for failure diagnosis and sets a conveying interval of the sheet by the sheet conveyor larger than the conveying interval in normal image forming.

Image forming apparatus and recording medium

A sheet heating device includes a heater, a power supply for the heater, and a control unit configured to set an initial power supply level of the power supply at a start of a sheet heating job by the heater based on the sheet heating job and according to whether or not maximum and minimum power supply levels from a last sheet heating job are stored, and control the power supply level of the power supply during the sheet heating job based on a temperature detected by the temperature sensor.

Temperature control for sheet heating device

An image reading device includes an imaging device to capture an image of a document placed below the imaging device to generate a document image and output an image signal based on the document image, circuitry to determine a size of a fed-sheet based on information on the fed-sheet, the fed-sheet being a sheet to be formed with the document image, generate a frame image for the document image, the frame image having a size equal to the size of the fed-sheet, and synthesize the frame image with the image signal output from the imaging device to generate a synthesized image, and a display to display the synthesized image.

Image reading device, image forming apparatus, method of displaying document image, and non-transitory recording medium

An image reading apparatus includes: a plurality of light sources to emit light to a target to be read from a plurality of different irradiation positions; an illumination controller to sequentially and alternately turn on or off the plurality of light sources with a blinking cycle not perceptible to the human eye; an image capturing device to photoelectrically convert, pixel by pixel, reflected light of the light emitted to the target from the plurality of light sources to capture a plurality of read images; a memory to store one or more read images of the plurality of read images being captured; and a synthesizer to synthesize preset regions of the plurality of read images using the one or more read images stored in the memory to generate a synthesized read image representing the target, the preset region of each of the plurality of read images having an image level change caused by reflected light that is smaller than a threshold.

Image reading apparatus, image forming apparatus, image reading method, and recording medium

An image forming apparatus includes an apparatus body accommodating an image forming device, a foreign object detector that detects a foreign object beside the apparatus body, and a detector holding unit that holds the foreign object detector. The foreign object detector and the detector holding unit are movable together into the apparatus body.

Image forming apparatus, foreign object detecting system, and method for producing foreign object detecting system

Growing community of inventors

Kanagawa, Japan

Hiroshi Ishii