Canon Kabushiki Kaisha

Other

Yoshie Asakawa

Toshio Kashino

Kiyomitsu Kudo

Aya Yoshihira

Hiroyuki Ishinaga

Takeshi Okazaki

Hiroshi Tajika

Sadayuki Sugama

Osamu Iwasaki

Hidehiko Kanda

Masao Kato

Hiroyuki Sugiyama

Kimiyuki Hayasaki

Yoichi Taneya

Takayuki Ono

Hitoshi Tsuboi

Tsuyoshi Orikasa

Makiko Kimura

Shinya Matsui

Kouichi Omata

Hiroyuki Kigami

Hisashi Fukai

Masayoshi Ohkawa

Yoshiyuki Imanaka

Akira Nagashima

Seiichiro Karita

Shuji Koyama

Masaya Uetsuki

Satoshi Shimazu

Masaya Uetuki

Kiyomi Aono

Tetsushi Kohno

Mikio Shiga

Akira Nagatomo

Kouji Yamakawa

Noribumi Koitabashi

Tsutomu Abe

Masahiko Kubota

Masanori Takenouchi

Yutaka Koizumi

Hiroshi Sugitani

Hiroki Tajima

Hirokazu Tanaka

Masashi Ogasawara

Akira Asai

Hiroaki Mihara

Toshiyuki Yanaka

Koji Yamakawa

Hidehisa Matsumoto

Masashi Shimizu

Toshiaki Sasaki

Shizuko Fukuda

Yasutoshi Saito

A Liquid ejecting method for ejecting liquid using a bubble, includes using a liquid ejecting head having an ejection outlet for ejecting the liquid, a bubble generating region where a bubble is generated in the liquid, a movable member which is disposed faced to the bubble generating region, and which is displaceable between a first position and a second position farther from the bubble generating region than the first position and which has a free end at a downstream side thereof; displacing the movable member from the first position to the second position by pressure based on generation of the bubble in the bubble generating region, wherein the bubble expands more to the downstream side than to the upstream side with respect to a direction toward the ejection outlet by the displacement of the movable member, thus directing the bubble toward the ejection outlet to eject the liquid through the ejection outlet; and imparting an operation to the liquid ejecting head to normalize a state of the liquid in a liquid flow path for the liquid at least before liquid ejection start or at the time of non-ejection of the liquid.

Liquid ejection method and liquid ejection head therefor

A liquid discharging head has a heat generating member in which there is a bubbling region involved in the generation of the bubble. A center of the width of the heat generating member and a center of the width of an effective bubbling region with respect to a flow direction of the liquid are identical. The conditions of the bubble generation region are given as follows: the width of the effective bubbling region&lE;a width of the bubble generation region<the width of the heat generating member.

Liquid discharging head and liquid discharging device

A liquid ejection head includes an ejection outlet for ejecting liquid; a bubble generating region for generating a bubble; a movable member disposed faced to the bubble generating region and movable between a first position and a second position which is farther form the bubble generating region than the first position; a liquid supply passage for supplying the liquid to the bubble generating region from upstream of the bubble generating region; an opening, in fluid communication with the supply passage, for discharging the liquid.

Liquid ejection head, apparatus and recovery method for them

A liquid ejection method including the steps of preparing a head comprising an ejection outlet, a bubble generation region, a movable member faced to the bubble generation region and displaceable from a first position to a second position further from the bubble generation region than the first position; displacing the movable member from the first position to the second position by pressure produced by the generation of the bubble to permit greater expansion of the bubble downstream as compared to upstream; and supplying a driving pulse to generate each bubble, wherein the pulse is divided into a first pulse for pre-heating the liquid and a second pulse for ejecting the liquid.

Liquid ejection method, head and apparatus

Liquid ejecting head and head cartridge capable of adjusting energy supplied thereto, liquid ejecting device provided with the head and head cartridge, and recording system

A liquid discharging method which employs a liquid discharging head consisting of a liquid discharging port, a bubble generating region where the bubble generates in the liquid and a movable member that can move between a first position and a second position which is located at a point farther from the bubble generating region compared with the first position, wherein the movable member moves from the first position to the second position by the pressure of the bubble generated by the bubble generating energy in the bubble generating region, and at the same time the bubble expands farther toward the downstream direction compared with the upstream direction by the displacement of the movable member in order to discharge the liquid out of the liquid discharging port by the liquid discharging energy applied to such liquid. The movable member has its free end in the downstream side with respect to its fulcrum and the liquid is discharged by applying the discharging energy corresponding to a saturation domain where the amount of the liquid to be discharged out of the liquid discharging port is substantially saturated in accordance with the increase of the discharging energy.

Liquid discharging method and liquid discharging head

A method for manufacturing a component provided with a number of liquid paths having movable members for use of liquid discharging comprises the steps of displacing the movable members provided for thin film material by use of such thin film material having the movable members on it, and a component provided with a plurality of recessed portions, and of placing the movable members, which are in the state of being displaced with respect to the recessed portions of the component correspondingly, hence making it possible to fabricate a liquid jet head without damaging or deforming such thin film material constituting the movable members. With the provision of the movable members, the discharging power and efficiency of the liquid jet head are significantly enhanced to obtain recorded images of high quality at higher speeds.

Method of manufacturing a liquid jet head having a plurality of movable members

A liquid discharging head includes a discharge port for discharging liquid, a liquid passage communicated with the discharge port, a bubble generating area for generating a bubble in the liquid in the liquid passage, the bubble generating area including a heater for heating the liquid in the liquid passage, and a movable member disposed in a confronting relation to the bubble generating area in the liquid passage and adapted to be shifted by pressure caused by generating the bubble at the bubble generating area to direct the pressure toward the discharge port and to be returned to its initial position by negative pressure due to contraction of the bubble, and wherein resistance of the movable member against the liquid in the liquid passage when it is shifted is smaller than that when it is returned.

Liquid discharging head

There is disclosed a liquid discharging method and apparatus in which a bubble is formed and grown in the liquid communicated with atmosphere at an area of a discharge opening, and in which a movable member having a free end which guides the bubble toward the discharge opening while regulating growth of the bubble.

Method and apparatus for discharging liquid by a gas bubble controlled by a movable member to communicate with the atmosphere

A liquid discharge head comprises discharge ports for discharging the liquid, a bubble producing area for producing an air bubble in the liquid of liquid flow channels, and a movable member, which is disposed toward the bubble producing area, and displaceable between a first position and a second position farther away from the bubble producing area than the first position, the liquid discharge head discharging the liquid in such a manner that the movable member is displaced from the first position to the second position by a pressure due to a bubble produced in the bubble producing area, and the bubble is more greatly expanded downstream than upstream in a direction toward the discharge port, due to the displacement of the movable member. The head has a check valve disposed in a liquid supply passage leading to the liquid flow channels.

Liquid discharge head having a plurality of liquid flow channels with check valves

A liquid discharge method for discharging a liquid through a discharge port for discharging the liquid utilizing a bubble by displacing a movable separation film for always substantially separating a first liquid flow path in communication with said discharge port for discharging the liquid from a second liquid flow path comprising a bubble-generating region for generating the bubble in said liquid, on the upstream side of said discharge port with respect to flow of the liquid in said first liquid flow path, comprises a step of displacing a downstream portion of said movable separation film toward said discharge port relatively more than an upstream portion of said movable separation film with respect to a direction of the flow of the liquid.

Liquid discharge method and apparatus employing a movable inelastic separation film

A liquid jet head is provided with discharge ports for discharging liquid, liquid flow paths conductively connected with the discharge ports, air bubble generating areas for creating air bubbles in the liquid, and movable members arranged to face the air bubble generating areas, each having a free end in a position relatively near to the discharge port with respect to a fulcrum thereof. This movable member is inclined to position the free end of the movable member to release the air bubble generating area partly to the discharge port so as to enable the tangential line of the free end of the movable member on the side of the air bubble generating area or the extended line thereof to reach directly the discharge port formation area having the discharge port on the liquid flow path side before the creation of air bubble on the air bubble generating area, and with this position as reference, the movable member is displaced following the creation of air bubble on the air bubble generating area. With this arrangement, the liquid discharging efficiency and speed are significantly enhanced as compared with the conventional liquid jet head, and due to more stabilized discharge of droplets from the discharge ports, the quality of recorded images is improved.

Liquid jet head with a movable member, head cartridge using the liquid jet head, liquid jet apparatus and liquid discharging method

The present invention provides an ink-jet textile printing method and an ink-jet textile printing apparatus, which can reduce number of ink-jet head than that in the prior art, and can stably perform ink ejection and printing when an ink-jet textile printing is performed for a cloth of blended yarn fabric of two or more fibers. The ink-jet textile printing method according to the present invention, includes employing a liquid ejection head having a first liquid passage communicated with an ejection port, a second liquid passage having a bubble generating region for generating bubble in a liquid by applying a heat for the liquid, and a movable member disposed between the first liquid passage and the bubble generating region, having a free end on the ejection port side, and displacing the free end toward the first liquid passage side in response to a pressure generated by bubble within the bubble generating region for orienting the pressure toward the ejection port side of the first liquid passage, step of supplying a first textile ink in the first liquid passage; step of supplying a second textile ink in the second liquid passage, and step of heating and bubbling the second textile ink supplied to the second liquid passage for ejected through the ejection port together with the first textile ink supplied to the first liquid passage.

Ink-jet textile printing method and apparatus therefor

Growing community of inventors

Hotaka-machi, Japan

Yoshie Asakawa