Canon Kabushiki Kaisha

Hideo Saikawa

Yoshifumi Hattori

Masami Ikeda

Asao Saito

Seiichiro Karita

Akio Saito

Hiroshi Sugitani

Kazuaki Masuda

Tsuyoshi Orikasa

Teruo Arashima

Kenji Kawano

Koichi Tanno

Masashi Kitani

Kenji Aono

Masami Kojima

Toshio Kashino

Makiko Kimura

Hiroshi Nakagomi

Etsurou Suzuki

Yasuo Kotaki

Masanori Takenouchi

Yuji Hamasaki

Osamu Sato

Hisashi Yamamoto

Masashi Miyagawa

Jun Hinami

Tsutomu Abe

Toshihiko Ujita

Nobuyuki Kuwabara

Minoru Nozawa

Masaaki Izumida

Jun Kawai

Shigeaki Tanaka

Kunihiko Maeoka

Takashi Ohba

Ryoichiro Kurobe

Hiromitsu Hirabayashi

Hiroyuki Ishinaga

Teruo Ozaki

Hiroyuki Tokuda

Yoshio Uchikata

Tetsuyo Ohashi

Tadashi Hanabusa

Toshihiko Bekki

Toshihide Wada

Shosaku Kawashima

Yoji Ara

Masaharu Ikado

Masahiko Kubota

Shuichi Murakami

Ryoji Inoue

Toshiaki Nagashima

Keiichiro Tsukuda

Masahiko Ogawa

Kimiyuki Hayasaki

Kyosuke Toda

Takayuki Ono

Akihiro Yamanaka

Shogo Kawamura

Hiroto Matsuda

Kazuhiko Miyahara

Toshiaki Sasaki

Norio Hikake

Noribumi Koitabashi

Yoshiyuki Imanaka

Takashi Watanabe

Takeshi Yazawa

Akira Goto

Shinjiro Hori

Yoichi Takada

Tsuyoshi Santo

Naohito Asai

Koichi Sato

Kenji Maeda

Tsutomu Shimada

Hajime Kaneko

Masaaki Okada

Tsuguhiro Fukuda

Ken Hosaka

Junji Tatsumi

Haruo Uehara

Etsuro Suzuki

Yoshifumi Fujita

Notification is made to a user when mechanical engagement of an ink tank has been ensured such that the user does not stop a mounting operation before completion of mounting of the ink tank. A substrate includes a light emitting unit and a control unit configured to control the light emitting unit in accordance with a conduction state between an electrode and a corresponding electrode. A liquid tank is moved by force, a second engagement unit is locked to a second lock unit, and the liquid tank is mounted into a holder at a mounting completion position. In the movement, after the liquid tank has gone past the mounting completion position and a second engagement unit has shifted to a state of being partially engaged with the second lock unit, the electrodes shift from a non-conductive state to a conductive state.

Liquid tank and ink ejection device

A liquid ejecting apparatus informs a user when an ink tank is substantially mechanically attached so as to prevent an attaching operation from being stopped by a user before completion of attachment of the ink tank. A board is provided with a light emitter, and a control unit for controlling the light emitter according to a conductive state between an electrode and a counterpart electrode. The liquid tank is moved by force P, a second engaging portion is locked to a second locking portion, and then, the liquid tank is attached to a holder at an attachment completion position. The non-conductive state between the electrodes is changed to a conductive state before the second engaging portion engages with the second locking portion, and then, the liquid tank is fixed at the attachment completion position during movement in a reverse direction after the liquid tank passes the attachment completion position.

Liquid tank and liquid ejecting apparatus

Liquid discharge head

An inkjet recording head includes: plural element substrates from which ink is ejected; and a flexible wiring substrate which includes a first wiring area, a second wiring area and a bending portion, the first wiring area including plural openings in which the element substrates are placed and which includes, in the periphery thereof, electrode terminals electrically connected to the element substrates, and the bending portion being bent between the first wiring area and the second wiring area. The flexible wiring substrate includes a slit which extends between the plural openings and reaches the bending portion or a position further than the bending portion from an end portion of the flexible wiring substrate on the side on which the first wiring area is provided, at a position opposite to the bending portion.

Inkjet recording head and method of manufacturing inkjet recording head

The present invention provides an ink tank in which ink is unlikely to leak from an air communication hole even with variation in the internal pressure of the ink tank or an external impact on the ink tank. Specifically, ink attached to a rib or trapped in a groove may disperse to the vicinity of a projecting portion. In this case, first, a first groove is provided at a predetermined distance from the projecting portion, enabling a reduction in the possibility that the ink disperses from the groove or a remoter area to the projecting portion. Second, even if the dispersing ink enters an area surrounded by the groove, a second groove formed in the area allows the dispersing ink to be trapped therein.

Ink tank having grooves to prevent leakage from the air communication hole

Ink tank having grooves to prevent leakage from air communication hole

A printing head includes a printing element substrate that is hard to be deformed even if the printing head falls by mistake. The printing head comprises element substrate in which an energy generating element for generating energy used for ejecting ink is provided, a first sheet-shaped portion to which the element substrate is provided, a second sheet-shaped portion provided away from the first sheet-shaped portion at an opposite side to a direction of ejecting the ink in relation to the first sheet-shaped portion, and a sheet-shaped wall member connecting the first sheet-shaped portion to the second sheet-shaped portion, wherein the wall member has a thickness of a portion connected to the second sheet-shaped portion, which is larger than a thickness of a portion connected to the first sheet-shaped portion.

Printing head

A printing head, which can suppress the occurrence of cracks in a printing element substrate, even if accidentally dropped, includes the printing element substrate, an ink flow passage and a sheet-shaped portion comprising a rectangular major surface. A rear surface side of the major surface of the sheet-shaped portion is provided with a space formed separately from the ink flow passage. A surface adjacent to the major surface is provided with an opening of the space formed therein, and the sheet-shaped portion is provided with a concave portion formed on the rear surface side of two regions between the printing element substrate and two corner portions arranged proximate to the opening.

An ink jet recording head includes a recording element substrate including an ejection outlet array consisting of a plurality of arranged ejection outlets for ejecting ink, a plurality of heat generating elements, provided correspondingly to the ejection outlets, for generating thermal energy for ejecting the ink, and a supply port, formed along the ejection outlet array in an elongated hole-like shape, for supplying the ink to the ejection outlets; and a supporting member, having a supply flow passage communicating with the supply port, for supporting the recording element substrate. The supporting member is provided with at least two beams each extending over an opening of the supply flow passage in a widthwise direction of the supply flow passage and having a width W with respect to a longitudinal direction of the supply flow passage. At least two beams described above are disposed within a range from a center of the supply flow passage with respect to the longitudinal direction toward both longitudinal end sides of the supply flow passage by 2.5 W for each of the end sides and are spaced 2 mm or more apart.

Ink jet recording head and recording apparatus

Ink cartridge for printer

Disclosed is a portable, hand-held printing apparatus capable of maintaining high printing quality even when the movement of the apparatus becomes unstable due to looseness or wrinkles of a printing medium or even when the moving velocity of the apparatus changes. When a user moves the housing of this apparatus on a printing medium to print on the printing medium by using a printhead, the apparatus itself detects the moving velocity of the housing. On the basis of this detection result, the apparatus adjusts the supply timing of a driving signal for driving the printhead.

Printing apparatus

A substrate having plural recording elements and electrical leads for supplying electric signals to the recording elements includes electrical contacts for external electrical connection for reception of image signals used for driving the recording elements; and a processing circuit for converting signals which are serially supplied to the connecting contact to parallel signals to be applied to the recording elements.

Recording apparatus, recording head and substrate therefor

An ink container includes a casing, an air vent which is located in the casing, an ink supply opening for supplying ink out of the casing, and an ink absorbing material that is contained in the casing. The ink absorbing material retains ink therein, and has a generally rectangular parallelopipedal shape defined by sides of the ink absorbing material, and also has an ink supply portion for supplying ink to the ink supply opening. The ink absorbing material includes corner portions which are located between adjacent sides of the ink absorbing material. A preventing means prevents complete surface contact between the casing and said ink absorbing material by providing spaces between the casing and ink absorbing material which are in fluid communication with each other with a given space that is adjacent to a particular one of the corner portions that is most remote from the ink supply portion. The air vent is in fluid communication with the spaces.

Vented ink container with internal ink absorber, and ink cartridge having such an ink container

Growing community of inventors

Kawasaki, Japan

Hideo Saikawa