Canon Kabushiki Kaisha

Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Toshiba Mitsubishi-electric Industrial Systems Corporation

Kyocera Corporation

Calsonic Kansei Corporation

Satoshi Azuma

Yoshiaki Murayama

Minoru Teshigawara

Shigeyasu Nagoshi

Masao Kato

Minako Kato

Yutaka Kano

Susumu Hirosawa

Takeshi Murase

Kentarou Muro

Mitsutoshi Nagamura

Hiroshi Taira

Taku Yokozawa

Kazuhiko Sato

Yuhei Oikawa

Hiroaki Komatsu

Hiroaki Shirakawa

Yosuke Ishii

Shingo Nishioka

Kazuo Suzuki

Takushi Jimichi

Kei Kosaka

Masataka Kato

Makoto Torigoe

Yoshinori Nakajima

Shin Genta

Sae Mogi

Takuya Fukasawa

Kimiyuki Koyanagi

Takuya Sakai

Shinzo Tamai

Noboru Kunimine

Yasuhiko Hosokawa

Hiroshi Kawafuji

Akiko Aichi

Kotaro Higashi

Sadao Funahashi

Kazunori Sanada

Akitoshi Yamada

Noribumi Koitabashi

Fumitaka Goto

Mitsuhiro Ono

Yuji Konno

Junichi Saito

Akihiko Iwata

Satoshi Wada

Tomokazu Ishikawa

Koichiro Kawaguchi

Toshiki Takeuchi

Yosuke Shinomoto

Isao Kezobo

Koichiro Nakazawa

Tetsuya Kojima

Tomoki Yamamuro

Naoko Baba

Kengo Nieda

Yasushi Nakayama

Kazunori Sakanobe

Yugo Mochizuki

Yasuhiro Shiraki

Takeshi Oi

Toshiyuki Kaitani

Ryuichi Takiguchi

Hajime Nagai

Kei Yoshizawa

Shigeru Toriihara

Kengo Sugahara

Takafumi Maruyama

Shuta Ishikawa

Ryo Yokozutsumi

Serena Yoshikawa

Kosuke Nakano

Akihiro Murahashi

Daisuke Itoh

Hiroto Kango

Hideki Takahara

Akinori Nishihiro

Masataka Yabuuchi

Kazuya Koizumi

Shigemi Kuriyama

Taro Ando

Ritaka Nakamura

Isao Kawasaki

Katsumi Amada

Teruaki Tanaka

Shoichiro Oda

Daisuke Sugaya

Masakatu Daijyo

Yasuhito Shimomura

Yoshihito Kato

Sae Tabuchi

To provide a technology capable of appropriately suppressing deterioration in cutting accuracy of a slitter although the rigidity of a print medium changes, a printing apparatus is equipped with: a first conveyance unit configured to convey a print medium; a printing unit configured to print an image by applying ink to the print medium conveyed by the first conveyance unit; a cutting unit disposed on a downstream side in a conveyance direction in which the print medium is conveyed by the first conveyance unit and configured to cut the print medium, which is conveyed by the first conveyance unit, along the conveyance direction; and a second conveyance unit disposed on the cutting unit, and the printing apparatus includes a correction unit configured to correct a parameter related to conveyance of at least one of the first conveyance unit and the second conveyance unit, based on information about the print medium.

Printing apparatus, control method, and conveyance apparatus

An object is to provide a full-line inkjet printing apparatus and a printing method that can suppress occurrence of image degradation in the case where a conveyance roller conveys a print medium and multipass printing is performed. The maximum conveyance amount in a return route is set to be smaller than a distance between the conveyance roller and a print head.

Inkjet printing apparatus and printing method with conveying print medium in first direction and second direction and with control of nip of conveyance rollers

Provided is an inkjet printing apparatus that can reduce smears on a back surface of a print result medium by reducing accumulation of ink in a platen while reducing generation of mist. To achieve this, an ink receiving portion of a platen is provided away from a support surface by a predetermined distance, is formed in a mesh shape by laying multiple linear members, and is formed as a guide member that guides the ink received in the ink receiving portion to an ink guide holes.

Inkjet printing apparatus

Images with high image quality having less time-difference unevenness are outputted in an inkjet printing apparatus that performs multi-pass printing using full-line inkjet print heads. For this purpose, a CPU is capable of setting a first printing method in which an image for a unit area is printed by a specified number of printing conveyance operations and a second printing method in which an image for a unit area is printed by a smaller number than the specified number of printing conveyance operations. The CPU sets conveyance conditions such that a taken time for one printing conveyance operation of the printing conveyance operations for a unit area in the second printing method is smaller than a taken time for one successive printing conveyance operation of the printing conveyance operations for a unit area in the first printing method.

Inkjet printing apparatus and inkjet printing method

An ink jet recording apparatus of a line-recording-head type includes one or more recording heads using the same ink and performs recording of an image by conveying a recording medium using multiple passes through a recording region of the recording head while the recording medium is repeatedly conveyed backward and forward to speed up recording and improve image quality. A recording head is controlled to provide that an amount of ink applied to a recording medium in a case where the recording medium is conveyed at a first speed is smaller than an amount of ink applied to the recording medium in a case where the recording medium is conveyed at a second speed higher than the first speed in both of a case where the recording medium is accelerated and a case where the recording medium is decelerated.

Ink jet recording apparatus

An object of the present invention is to quickly correct a temperature sensor for an ejection head by, both efficiently and in a brief time, estimating a detected temperature of the temperature sensor for the ejection head in a case where the temperature of the ejection head of liquid becomes sufficiently close to an environment temperature. The temperature of a print headis detected by a diode sensorand the environment temperature is detected by a thermistor. Based on a change in the detected temperature of the diode sensorat the time of filling of ink for the print head, the detected temperature of the diode sensorin a case where the temperature of the print headbecomes close to the environment temperature is estimated as an estimated detected temperature. Based on a difference between the estimated detected temperature and the environment temperature, a correction value of the detected temperature of the diode sensoris set.

Liquid ejection apparatus, correction method, and storage medium

A recording apparatus is capable of executing multiple types of different temperature control. A recording head of the recording apparatus has multiple temperature sensors disposed at different positions from each other in the recording head. Each of the multiple types of different temperature control is performed based on representative temperatures acquired using different combinations of the temperature sensors.

Ink jet printing apparatus and ink jet printing method

After printing is performed by driving only some printing elements, the other printing elements are driven so that kogation is deposited on the surface of the other printing elements.

A driving pulse to be applied is changed when an overlapped level of invert timing of driving pulse is large.

Recording elements are driven by changing a driving pulse applied thereto in accordance with information regarding a total number of times the recording elements have been driven.

Inkjet recording apparatus and inkjet recording method

An electrical power converter includes: AC voltage terminals U, V, and W; DC voltage terminals P and N; a converter cell series unit composed of one or more converter cells connected in series between the AC voltage terminals U, V, and W and the DC voltage terminals P and N, each converter cell including a semiconductor element and a capacitor; and a first inductance connected in series to the converter cell series unit, between, of the DC voltage terminals P and N, a DC voltage terminal at the lowest potential with respect to the ground, and the AC voltage terminals U, V, and W.

Electrical power converter with a converter cell series unit

A power module including: a power conversion unit including N switching-element pairs; and a control circuit. The control circuit receives N command signals, which correspond respectively to the N switching-element pairs, and a shared enable signal. The control circuit is configured to, when the enable signal is negated, execute all-off control of turning off all of the switching elements constituting the power conversion unit, and when the enable signal is asserted, execute normal control, dead-time addition control, and dead-time compensation control for each of the switching-element pairs per period of a corresponding command signal.

Power module

A driving pulse to be applied to a plurality of print elements in a print element array is decided based on the deviation of the discharge amount from the print elements.

A power conversion device includes transformers provided with primary windings connected to input terminals and secondary windings including pluralities of single-phase open windings that are insulated to each other; a plurality of converter cells connected to the secondary windings of the transformers; and a control circuit for controlling ON/OFF of switching elements. The converter cells are each include a converter and the inverter that are provided with the switching elements, in which their input ends are connected to the respective single-phase open windings, so that the input ends are connected in mutually parallel fashion, through the transformers, to the input terminal of each phase, and in which their output ends are connected in mutually serial fashion to an output terminal of each phase, to thereby perform three or more-level power conversion.

Power conversion device

Growing community of inventors

Kawasaki, Japan

Satoshi Azuma