Canon Kabushiki Kaisha

Other

Aya Yoshihira

Kiyomitsu Kudo

Toshio Kashino

Takeshi Okazaki

Yoshie Asakawa

Hiroyuki Ishinaga

Makiko Kimura

Yoshie Nakata

Hiroshi Sugitani

Masami Ikeda

Yoichi Taneya

Hiroyuki Sugiyama

Satoshi Shimazu

Shoji Koike

Masahiro Haruta

Mariko Suzuki

Koromo Shirota

Tomoya Yamamoto

Masahiko Kubota

Sadayuki Sugama

Tadayoshi Inamoto

Isao Kimura

Kouichi Omata

Hiroshi Tajika

Masao Kato

Makoto Aoki

Hiromichi Noguchi

Shuji Koyama

Kimiyuki Hayasaki

Takayuki Ono

Hitoshi Tsuboi

Tsuyoshi Orikasa

Toshihiro Mori

Kiyomi Aono

Hiroyuki Kigami

Hisashi Fukai

Kouji Yamakawa

Masayoshi Ohkawa

Yoshiyuki Imanaka

Kenji Fujii

Tsutomu Abe

Akira Nagashima

Ichiro Saito

Masanori Takenouchi

Seiichiro Karita

Shinichi Sato

Yutaka Koizumi

Teruo Ozaki

Junichi Kobayashi

Keiji Watanabe

Kazuaki Masuda

Hiroki Tajima

Masahiko Ogawa

Hideo Tamura

Yoshinori Tagawa

Hiroshi Tomioka

Hirokazu Tanaka

Nobuhito Yamaguchi

Tomoyuki Hiroki

Tamaki Sato

Akira Asai

Hiroyuki Murayama

Jun Kawai

Junji Shimoda

Toshihiko Bekki

Takumi Kaneko

Isamu Horiuchi

Taichi Yonemoto

Akira Tsujimoto

Masamichi Yoshinari

Tooru Suzuki

An ink jet head producing method includes forming a first flow path forming member in a portion constituting a flow path side wall, which constitutes at least a partitioning portion between flow paths on a substrate; forming a pattern as a mold for the flow path, the pattern being formed over the substrate and a portion of the first flow path forming member; forming a second flow path forming member on the first flow path forming member and the pattern, the second flow path forming member being formed of a material corresponding to the first flow path forming member; forming the discharge port in the second flow path forming member; and forming the flow path by removing the pattern.

Ink jet head and producing method therefor

A liquid ejecting head includes an ejection side surface; an ejection outlet, formed in the ejection side surface, for ejecting liquid; and a protection tape pasted on the ejection side surface. The protection tape is partly irradiated with ultraviolet radiation or infrared radiation after being pasted on the ejection side surface such that bonding strength is different depending on a position of the protection tape.

Liquid jetting head, method for changing protective tape in adhesive strength, and protective tape

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

In a liquid ejecting head having a first liquid flow path communicating with an ejecting port for ejecting a liquid to be ejected and an element substrate having a heating element for forming a bubble from a bubble forming liquid as well as including a second liquid flow path corresponding to the first liquid flow path and a movable separation membrane for substantially separating the first liquid flow path and the second liquid flow path corresponding to the first liquid flow path from each other at all times, the liquid ejecting head includes an atmosphere communication port facing the atmosphere for communicating the second liquid flow path with the atmosphere, and an atmosphere communication path having an atmosphere communication path introduction port facing the second liquid flow path, wherein the atmosphere communication port is formed through the same surface as that of the ejecting port, whereby the liquid ejecting head can remove remaining bubbles in the bubble forming liquid by a simple arrangement as well as improve a liquid ejecting efficiency by effectively transmitting the pressure of a bubble formed in the bubble forming liquid to the liquid to be ejected.

Liquid ejecting head, head cartridge, and liquid ejecting and recording apparatus

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 ejecting method for ejecting liquid by generation of a bubble includes preparing a head comprising an ejection outlet for ejecting the liquid, a bubble generation region for generating the bubble in the liquid, a movable member disposed faced to the bubble generation region and displaceable between a first position and a second position further from the bubble generation region than the first position; and displacing the movable member from the first position to the second position by pressure produced by the generation of the bubble in the bubble generating portion to permit expansion of the bubble more in a downstream side nearer to the ejection outlet than in an upstream side.

Liquid ejecting head, liquid ejecting device and liquid ejecting method

A liquid discharge head comprises a separation member for separating the discharge liquid flow paths communicated with discharge ports for discharging discharge liquid to enable discharge liquid to flow, and the bubbling liquid flow paths to enable bubbling liquid to flow, which is provided with the bubble generating areas for creating bubbles used for discharging discharge liquid from the discharge ports. This separation member is provided with the opening portions positioned to face the bubble generating areas, and displacement members provided for the separation member corresponding to the openings, having the free ends to be displaced by bubbles created on the bubble generating areas provided for the separation member. Then, with no bubbles created on the bubble generating areas, the displacement members interrupt the opening portions, and with bubbles created thereon, the free ends of the displacement members are displaced to discharge discharge liquid from the discharge ports of the head. Hence, this head can prevent discharge liquid from entering around the heat generating members at the time of bubble disappearance, and the mixture of discharge liquid and bubbling liquid when the head is left intact for a long time, while maintaining the excellent discharge efficiency by means of the displacement members thus arranged.

Liquid discharge head, head cartridge provided with such head, liquid discharge apparatus and method for discharging liquid

A liquid ejecting head for ejecting liquid by generation of bubble includes an ejection outlet for ejecting the liquid; a liquid path in fluid communication with the ejection outlet; a bubble generation region for generating the bubble in the liquid; a movable member having a fulcrum and a free end and disposed faced to the bubble generation region; wherein the movable member moves from the first position to the second position by pressure produced by the generation of the bubble, and a resistance against movement of the movable member, is smaller adjacent the free end than adjacent the fulcrum.

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

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

An ink-jet printing apparatus, a cap and an ejection recovery method can satisfactorily perform a recovery process for respective ejection openings having different ink flow resistances and permit down-sizing. The ink-jet printing apparatus includes a printing head having a plurality of ejection openings, a cap for covering the ejection opening face where a plurality of ejection openings of the printing head are formed, and a recovery unit for suctioning ink from the ejection openings covered by the cap. The ink-jet printing apparatus also includes a sealing member for sealing predetermined ejection openings among the plurality of ejection openings provided within the cap.

Ink-jet printing apparatus and recovery processing method of ejection port

Growing community of inventors

Yokohama, Japan

Aya Yoshihira