Canon Kabushiki Kaisha

Mitsubishi Heavy Industries Limited

Yutaka Kano

Susumu Hirosawa

Kentarou Muro

Shigeyasu Nagoshi

Yoshiaki Murayama

Masao Kato

Minoru Teshigawara

Minako Kato

Satoshi Azuma

Takeshi Murase

Norihiro Kawatoko

Yuhei Oikawa

Hitoshi Nishikori

Toshiyuki Chikuma

Akitoshi Yamada

Mitsuhiro Ono

Yuji Konno

Tomokazu Ishikawa

Kohei Sato

Rie Kajihara

Takuya Fukasawa

Susumu Sekine

Toshiyuki Wada

Tomoyuki Yamazaki

Hiroto Akitaya

Hidehiko Kanda

Tetsuya Ishikawa

Takatoshi Nakano

Atsushi Saito

Shinya Asano

Fumiko Suzuki

Masashi Hayashi

Yoshiyuki Honda

Tadashi Ota

Shingo Hase

Hiroshi Tajika

Fumitaka Goto

Yoshiyuki Nakagawa

Takeshi Yazawa

Nobuyuki Hirayama

Atsuhiko Masuyama

Yuji Kanome

Toshimori Miyakoshi

Hikaru Watanabe

Yugo Mochizuki

Eiji Komamiya

Yoshihiro Hamada

Takashi Horiba

Kentaro Muro

Hyota Abe

Ayako Iwasaki

Takahide Takeishi

Ayako Ohta

Taiichi Mure

A member attachment support system is for supporting work of attaching a plurality of members to a device. The member attachment support system includes: an identification information storage unit provided for each of the plurality of members and configured to store identification information associated with an attachment position of each of the plurality of members; a terminal device configured to acquire the identification information from the identification information storage unit; and a display device configured to display a support image that indicates the attachment position corresponding to the identification information acquired by the terminal device.

Member attachment support system and member attachment support method

Although a conventional method of inspecting an ink discharge state in which the temperature change of the heater is detected enables accurate and high-speed inspection, due to the situation in which the inspection was performed, appropriate post-processing depending on the situation cannot be executed based on a result of the inspection. Therefore, it is necessary to determine the ink discharge state in detail. A plurality of modes are provided in accordance with the purpose of performing an inspection of the ink discharge state, and a discharge inspection threshold is provided for each of these modes. By selectively executing or continuously executing these modes, it is possible to determine the ink discharge state in more detail.

Printing apparatus and method of controlling same

A method for inspecting an ink discharge status based on a temperature change of an energy generating element includes calculating a difference value between a value obtained by statistics of information indicating ink discharge statuses obtained for a plurality of nozzles close to a target nozzle and the information obtained for the target nozzle; comparing the calculated difference value with a predetermined threshold; and judging the ink discharge status for the target nozzle based on a result of the comparison. This enables to appropriately detect a nozzle which is in a discharge failure status due to an ink droplet adhered to a discharge surface of a printhead or the like.

Printing apparatus and control method therefor

Display screen with graphical user interface

Display screen with transitional graphical user interface

A printing apparatus, which uses a printhead including a circuit configured to inspect an ink discharge status of a selected nozzle using a temperature detection element, causes the printhead to inspect the ink discharge status by changing a threshold value for judging a detection result of the temperature detection element, in order to judge the ink discharge status in a state in which a heater in the selected nozzle is driven by each of a first pulse and a second pulse whose waveform is different from that of the first pulse, obtains first information about a change point where a judgment result obtained by the first pulse changes, and second information about a change point where a judgment result obtained by the second pulse changes, and sets the threshold value, based on the first and second information.

Printing apparatus and discharge status judgment method

A printing apparatus using a printhead that includes an inspection circuit for inspecting an ink discharge status for each nozzle performs an inspection processing. The apparatus selects a nozzle as a target of inspection of the ink discharge status, sets a threshold value for inspecting a detection result of a temperature detection element corresponding to the selected nozzle, and uses the inspection circuit and the set threshold value. The apparatus receives, from the printhead, an inspection result for the selected nozzle, determines, based on the received inspection result, a threshold value to be used by the inspection circuit for inspecting the discharge status of the selected nozzle in a subsequent inspection, and stores the determined threshold value in a memory.

An image forming apparatuscapable of performing printing with a high image quality, and a control method of the image forming apparatusare provided. For this purpose, a threshold value Dt is preliminarily set that allows printing without occurrence of blur, for each of preliminarily set monitoring areas A. In the case where a print duty for each of the monitoring areas A has exceeded the threshold value Dt, an ejection frequency of ink and conveying speed of a print medium are reduced in association therebetween.

Image forming apparatus and control method of image forming apparatus

An image forming apparatus includes a printhead in which a plurality of element substrates for discharging a print material are arranged; a heating unit that maintains a temperature within the element substrate at a target temperature for each of the plurality of element substrates; a detection unit that detects the temperature within the element substrate for each of the plurality of element substrates; and a control unit that, for each of the plurality of element substrates, compares a highest temperature within the element substrate that is detected by the detection unit with a predetermined threshold, and if the highest temperature exceeds the predetermined threshold, sets the target temperature for the element substrate at a temperature which is higher than a target temperature set when the highest temperature does not exceed the predetermined threshold and lower than the predetermined threshold.

Image forming apparatus and control method therefor

An object of the present disclosure is to acquire an accurate temperature of a print head. The present disclosure is an ink jet printing apparatus comprising a print head, a transmission unit configured to transmit a control signal, and a detection unit configured to detect a temperature by reading an output of a Di sensor after the transmission, and as drive conditions for driving a printing element, there is a plurality of drive conditions whose driving cycle of the printing element is different from one another, within a predetermined period in length in accordance with the driving cycle, transmission of a control signal and temperature detection are performed, a part of a line used for transmission of the control signal and a part of a line connected with the Di sensor are in common.

Ink jet printing apparatus, control method thereof and storage medium

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Yokohama, Japan

Yutaka Kano