Canon Kabushiki Kaisha

Kazuhiko Okito

Keiichiro Tsukuda

Yasushi Nakano

Kyosuke Toda

Yukuo Yamaguchi

Takayuki Ishii

Yasuaki Kitayama

Shuichi Murakami

Sadayuki Sugama

Mitsuhiro Ono

Ryo Sato

Ken Tsuchii

Shuzo Iwanaga

Toshiaki Hirosawa

Toshiharu Inui

Kenta Udagawa

Hiroshi Yamada

Minoru Nozawa

Shogo Kawamura

Masayoshi Tachihara

Kyota Miyazaki

Kenji Yabe

Shimpei Yoshikawa

Sayaka Seki

Atsushi Omura

A liquid ejection head includes an element substrate having an energy-generating element configured to generate an energy for ejecting a liquid from an ejection orifice, a support member for supporting the element substrate, the support member including a liquid chamber formed therein to supply the liquid to the ejection orifice, and a damper portion for absorbing vibration of the liquid inside the liquid chamber, the damper portion being flexible. The support member has a through-hole for communicating with the liquid chamber at a position located above the liquid chamber in a vertical direction when the liquid ejection head is in a use orientation. The damper portion has a taper portion that tapers downwardly in the vertical direction and is positioned in such a manner that the tapering portion closes the through-hole, and the damper portion and the support member are attached to each other by a fixing member.

Liquid ejection head and manufacturing method of liquid ejection head

A manufacturing method of a liquid supply component in which a liquid supply path is formed between a first constituent component and a second constituent component that are joined with molten resin. The method includes a first step of preparing these constituent components, a second step of causing the constituent components to face each other and forming an orifice portion and a reservoir portion between a mold and a surface of either of the constituent components, and a third step of pouring the molten resin between the constituent components so that it flows into the reservoir portion through the orifice portion.

Manufacturing method of liquid supply component

Peripheral portion of filters includes short-side portions and long-side portions. A first component and a second component each include a first holding section and a second holding section, the long-side portion of the filter being compressively held between the first holding sections, and the short-side portion of the filter being compressively held between the second holding sections. At least one of the first component and the second component includes a wall portion configured to isolate the long-side portion and the resin from each other. The short-side portion and the resin are in contact with each other.

Liquid supply part, liquid ejection head, and method of manufacturing liquid supply part

A liquid loading method, a liquid container and a head cartridge are provided, which allow the liquid container to be appropriately loaded with liquid such that a stirring member provided in the liquid container fully fulfills its function. For this end, an infusion needle is inserted from the outside of the ink cartridge into the ink storage chamber comprising a swinging member for stirring ink, so that the ink is loaded into the ink storage chamber through the infusion needle.

Method for loading liquid, liquid container and head cartridge

A swing member that is provided in an ink containing chamber is swung according to movement of a carriage of a printing apparatus. Accordingly, an ink flow occurs in a hollow portion of the swing member from one of openings to the other opening, such that ink in an ink tank is stirred.

Liquid container, head cartridge, ink jet printing apparatus, and stirring method for liquid container

An ink jet recording head having a recording element substrate including three or more discharge port arrays comprising a plurality of discharge ports and recording elements for discharging ink from the discharge ports and supplying heat to areas around the discharge ports; wherein each of the discharge port arrays matches one or another of a plurality of types of ink whose viscosity decreases with a rise in temperature, and the discharge port arrays matching the most viscous of the inks to be discharged being arranged between other discharge port arrays to enable ink drips to be discharged stably, and an ink jet recording apparatus using the same are to be provided.

Ink jet recording head and ink jet recording apparatus

An ink container detachably mountable to a recording head, the recording head including an ink jet recording chip which is driven by a driving voltage supplied through a driving voltage wiring lead and an electric signal supplied through an electric signal wiring lead to eject ink, an electrical opening portion provided in at least one of the driving voltage wiring lead and the electric signal wiring lead, the ink container includes a connection element for establishing electrical connection by electrically closing the electrical opening portion when the ink container is mounted to the recording head.

Ink jet recording head, and ink container

A liquid discharge head cartridge includes a recording element unit having a plate member with liquid supply paths for supplying liquid to a recording element base plate for recording by discharging the liquid; a liquid supply unit portion having a communication passage for conducting liquid from a liquid supply source; and an elastic sealing member that forms a seal between one end portion of the liquid supply paths of the plate member and an end portion of the communication passage facing the one end portion of the liquid supply paths. The elastic sealing member is provided with liquid flow paths communicating with the liquid supply paths and the communication passage. The liquid supply unit portion and the recording element unit are adhesively bonded with each other at locations other than those having the elastic sealing member arranged thereon.

Liquid discharge recording head cartridge and liquid discharge recording apparatus

A recording control method and a recording apparatus in which high accuracy in the position of a discharged liquid droplet is obtained irrespective of changes in the temperature of a recording head are provided. In a liquid discharging method in which a bubble is generated by supplying ink (a liquid) with thermal energy, and the generated bubble is caused to communicate with the atmospheric air, by controlling a driving signal so that a discharging state in which a part of the ink to be discharged falls even if the temperature of the recording head changes, the direction of ink discharge can be stabilized.

Growing community of inventors

Hiratsuka, Japan

Kazuhiko Okito