Canon Kabushiki Kaisha

Toshiaki Hirosawa

Shogo Kawamura

Akira Yamamoto

Jiro Moriyama

Yutaka Koizumi

Shuzo Iwanaga

Osamu Morita

Torachika Osada

Hiromasa Amma

Takuya Iwano

Riichi Saito

Hidemi Kubota

Kyota Miyazaki

Mineo Kaneko

Yasuhiko Osaki

Kenta Udagawa

Toru Yamane

Yasutomo Watanabe

Osamu Sato

Yukuo Yamaguchi

Hiroki Tajima

Minoru Nozawa

Genji Inada

Shin Ishimatsu

Manabu Sueoka

Manabu Inoue

Hiroshi Abe

Noriyasu Nagai

Yoshifumi Hattori

Junji Shimoda

Soji Kondo

Sakiko Tanabe

Tsutomu Abe

Nobuyuki Watanabe

Akira Kida

Kimiyuki Hayasaki

Tetsuji Kurata

Haruhiko Moriguchi

Isao Ebisawa

Toshimori Miyakoshi

Hideaki Kishida

Akira Katayama

Atsushi Kohnotoh

Katsuhiko Takano

Junji Yasuda

Tomoki Tsuji

Yoshie Akiyama

Shoji Koike

Shuichi Murakami

Kiyomitsu Kudo

Junichi Kobayashi

Tetsuya Edamura

Ken Tsuchii

Yasushi Miura

Makoto Takamiya

Hisashi Fukushima

Takeshi Shibata

Shoji Shiba

Hidejiro Kadowaki

Masafumi Wataya

Yasushi Murayama

Hiroto Matsuda

Ryo Shimamura

Tetsuya Sekine

Masami Izumizaki

Takayuki Murata

Kenji Aono

Haruhiko Takahashi

Kyoko Fukushima

Hajime Kishida

Kazuhiko Okito

Katsumasa Nishikawa

Shigeo Takenaka

Yoshinobu Shimomura

Taiji Yoshinari

Takatoshi Suganuma

Akifumi Kanno

A manufacturing method of a liquid ejection head including manufacturing a flow path constituting member for supplying a liquid to an ejection module, the manufacturing a flow path constituting member including using a metal mold which is constituted of a fixed mold and a movable mold, the manufacturing a flow path constituting member including: a first step of molding a first member, a second member, and a third member independently at locations different from each other in the metal mold, the first member, the second member, and the third member constituting the flow path constituting member; a second step of joining the first member and the second member in a specific manner; and a third step of joining the second member and the third member in a specific manner.

Manufacturing method of liquid ejection head

A method of manufacturing a liquid supply unit includes a first molding step and a second molding step. In a first molding step, a resin is injected into different positions inside a mold assembly and a first member having a first contact portion, a second member having a second contact portion and an intermediate passage member having a passage structure to connect the first contact portion to the second contact portion are molded. In a second molding step, the mold assembly is disassembled, a die slide mold disposed inside the mold assembly is moved for positioning the members. Then, the mold assembly is clamped again and a resin is injected into the mold assembly. The first contact portion and the second contact portion are respectively held on the same surfaces inside the mold assembly during a period from the first molding step to completion of the second molding step.

Method of manufacturing liquid supply unit

A liquid ejection head includes an element substrate including an energy-generating element that applies ejection energy to liquid, a first electric wiring board electrically connected to the element substrate, and a second electric wiring board on which an integrated circuit element is mounted and which is electrically connected to the first electric wiring board. An electric signal is supplied to the integrated circuit element mounted on the second electric wiring board through the first electric wiring board, processed by the integrated circuit element, and supplied to the energy-generating element through the second electric wiring board and the first electric wiring board.

Liquid ejection head

A liquid ejection head unit is formed by arranging a plurality of recording element substrates in a first direction. Each recording element substrate has an ejection orifice from which a liquid is ejected. The liquid ejection head unit includes rail portions extending in the first direction and a protective member which is detachably fitted on the rail portions. The protective member is movable along the rail portions between a first position and a second position. The first position allows the protective member to cover whole surfaces of the plurality of recording element substrates. The second position allows the plurality of recording element substrates to be exposed so as to allow a liquid to be ejected from the ejection orifices.

Liquid ejection head unit and liquid ejection apparatus

A method of manufacturing a liquid ejecting method includes: a first step of injection molding passage members collectively constituting a passage for a liquid in the liquid ejecting head; a second step of moving the passage members to bring the passage members into contact with each other; and a third step of injecting a sealing material into a space between the passage members held in contact with each other, and filling the space with the sealing material. The sealing material is injected and filled, from a gate on a longitudinal side of the passage members, in a direction intersecting with a longitudinal direction of the passage members.

Method of manufacturing liquid ejecting head, and liquid ejecting head

A method of manufacturing a liquid ejecting head has a first molding step, a step of performing positioning and a second molding step. In the first molding step, a first member, a second member, and a third member are molded by injecting a resin at different locations inside of a set of a fixed mold, an intermediate movable mold, and a movable mold. In the step of performing positioning, the set is detached in a first direction and the intermediate movable mold and the movable mold are moved in a second direction. In the second molding step, a resin is injected to the inside of the set that is clamped to bond. During a period from the first molding step to completion of the second molding step, the first member, the second member, and the third member are held by insert mold pieces used for molding the members, respectively, in the first molding step.

Method of manufacturing liquid ejecting head

A liquid ejecting head including a print element substrate including an ejection opening for ejecting a liquid, a wiring member including wiring electrically connected to the print element substrate, a connection electrically connecting the print element substrate to the wiring member, a support member supporting the wiring member, a sealing material sealing the connection, and a cover member provided on the support member. In the liquid ejecting head, the wiring member is a strip-shaped member, and a portion of the wiring member provided on a surface of the support member that supports the wiring member is covered by the sealing material and the cover member.

Liquid ejecting head

A page-wide liquid ejection head configured to be removably installed in a main body of a liquid ejection apparatus includes a connection part for liquid through which a liquid is supplied from the main body and an electrical connector through which an electric signal is supplied from the main body. In the liquid ejection head, the connection part for liquid and the electrical connector are located at one side of the liquid ejection head in the longitudinal direction and are provided to face different directions from each other.

Liquid ejection head, liquid ejection apparatus, and method of attaching liquid ejection head

A page-wide type liquid ejection head includes a plurality of recording element substrates, each having an ejection port array including a plurality of ejection ports, each ejection port communicating with a pressure chamber including therein a recording element, and a liquid supply path for supplying a liquid to the pressure chamber. The liquid ejection head also includes a flow path member mounting the recording element substrates arranged thereon. The flow path member includes common supply flow paths and individual supply flow paths that connect the liquid supply path to the common supply flow paths, and the individual supply flow paths include portions running obliquely to the direction orthogonal to the longitudinal direction of the liquid ejection head.

A liquid ejection head unit includes a page-wide type liquid ejection head detachably attached to a liquid ejecting apparatus and a protective member detachably attached to the liquid ejection head. The liquid ejection head includes an ejection port surface on which ejection ports are provided. The liquid ejection head includes a first rail portion, the protective member includes a second rail portion along a longitudinal direction thereof, and the protective member is made to slide in a first direction along the longitudinal direction of the liquid ejection head and cover the ejection port surface. The protective member is attached to the liquid ejection head, and then the liquid ejection head and the protective member are moved in a second direction opposite to the first direction and are removed from the liquid ejecting apparatus.

Liquid ejection head unit and liquid ejecting apparatus

An apparatus that performs recording using a recording head provided with a plurality of ejection port arrays each including a plurality of ejection ports for ejecting a liquid and heaters each provided corresponding to each of the ejection ports, the ejection port arrays being disposed on a printing element board and arranged in a predetermined direction, the apparatus including a driving unit configured to drive the heaters corresponding to the ejection ports in the plurality of ejection port arrays to eject the liquid, the driving unit giving priority to the heater corresponding to other ejection port array except for a first ejection port array and a second ejection port array of both sides in the predetermined direction among the plurality of ejection port arrays disposed in the predetermined direction to drive for recording.

Apparatus and method for driving the same

Provided are a liquid ejection head and a liquid ejection apparatus which can reduce the distance between an ejection port and a medium as much as possible and can apply liquid to a desired position, even in the case where a member protruding more toward a liquid ejection direction than an ejection port is provided. A liquid ejection apparatus applies liquid to a medium by using a liquid ejection head including an ejection port ejecting the liquid and a member protruding more toward a liquid ejection direction than an ejection port face where the ejection port is formed, wherein a first distance between the ejection port and the medium is smaller than a sum of a second distance from the ejection port face to a tip of the member in the ejection direction and a third distance from the tip to the medium.

Liquid ejection head and liquid ejection apparatus

A liquid discharge member includes discharge ports, and a first opening and a second opening that communicate with the discharge ports. A liquid supply member includes a first filter disposed in a gravitational direction and in a disposed direction, a first containing chamber containing the first filter, a second containing chamber containing the second filter, a first flow path connecting the first opening and the first containing chamber, and a second flow path connecting the second opening and the second containing chamber. The second filter and the first and the second flow path are disposed in an area between a surface perpendicular to the disposed direction and parallel to the gravitational direction and going through one end of the length of the first filter and a surface parallel to the first surface and going through the other end of the length of the first filter in the disposed direction.

Liquid discharge head, liquid discharge apparatus, and liquid filling method

A liquid discharge head includes a liquid discharge substrate having a discharge port array, and a channel member having a mounted face on which the liquid discharge substrate is mounted, channels for supplying liquid to the discharge port array, and a low thermal conductivity portion, wherein the channels includes an opening for flowing liquid, which is provided at a part except for both ends of the discharge port array, a first channel for passing the liquid, and a second channel for passing the liquid in a direction opposite to the liquid flowing direction in the first channel, wherein the opening, the first channel, the low thermal conductivity portion, and the second channel are provided in this order to be vertical to the mounted face, and the opening and the low thermal conductivity portion are provided to be at least partially overlapped one above the other.

Liquid discharge head

A liquid discharge head includes an element substrate including an energy generating element; a supporting member adhesively supporting the element substrate; a sheet member adhesively bonded to the supporting member to adjoin the inner surface of an opening accommodating the element substrate in the sheet member and an end section of the element substrate; a wiring substrate bonded to the sheet member to adjoin the inner surface of an opening accommodating the element substrate in the wiring substrate and the end section of the element substrate and including a wire electrically connected to the energy generating element; and a sealant sealing a part electrical connecting the wiring substrate and element substrate, wherein the height of a wiring substrate surface opposite to that contacting the sheet member from supporting member is smaller than the element substrate surface opposite to that contacting the supporting member from the supporting member.

Liquid discharge head and method of producing liquid discharge head

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Hiratsuka, Japan

Toshiaki Hirosawa