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公开(公告)号：US10300707B2
公开(公告)日：2019-05-28
申请号：US15995493
申请日：2018-06-01
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toru Nakakubo , Takuro Yamazaki , Kazuhiro Yamada , Yoshiyuki Nakagawa
Abstract: The present invention provides a liquid ejecting module capable of performing stable ejection operation while circulating and supplying fresh ink to the vicinity of ejection ports arranged in high density. To achieve this, a liquid ejecting module includes an element arranged face in which a plurality of ejecting elements are arranged, a circulation flow path including a supply flow path which supplies liquid to a pressure chamber and a collection flow path which collects liquid from the pressure chamber, and a liquid delivery mechanism provided in the circulation flow path for circulating liquid in the pressure chamber. The liquid delivery mechanism is located lower than the element arranged face.
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公开(公告)号：US20190092007A1
公开(公告)日：2019-03-28
申请号：US16135111
申请日：2018-09-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masafumi Morisue , Yoshiyuki Nakagawa , Kazuhiro Yamada , Takuro Yamazaki , Ryo Kasai , Tomoko Kudo , Takashi Sugawara
Abstract: Provided is a liquid ejection head including: a substrate; an energy-generating element, which is arranged on the substrate, and is used for ejecting a liquid; a flow path forming member, which has an ejection orifice for ejecting the liquid, and is configured to form a flow path of the liquid between the flow path forming member and the substrate; an electrode configured to generate a flow of the liquid; and a wiring, which is arranged so as to be brought into contact with the flow path forming member, and is configured to supply electric power to the electrode, in which the flow path forming member contains an organic material, and in which the electrode and the wiring are each formed of a conductive adhesive layer containing at least one of conductive diamond-like carbon or tin-doped indium oxide.
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公开(公告)号：US10195868B2
公开(公告)日：2019-02-05
申请号：US15583222
申请日：2017-05-01
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuhiro Yamada , Shuzo Iwanaga , Seiichiro Karita , Shingo Okushima , Zentaro Tamenaga , Noriyasu Nagai , Tatsurou Mori , Akio Saito , Takatsuna Aoki , Akira Yamamoto
Abstract: A liquid ejecting apparatus has a liquid ejecting unit and a negative pressure regulating unit provided between passages connecting the tank to the liquid ejecting unit, regulates fluid pressure of liquid flowing into the liquid ejecting unit. The negative pressure regulating unit includes a negative pressure chamber whose internal pressure is regulated within a predetermined range, and a discharging passage for discharging liquid stored in the negative pressure chamber from the negative pressure regulating unit. The discharging passage has an outlet disposed in an upper portion of the negative pressure chamber in a direction of gravity, a bubble accumulation portion connected to the outlet and having a space above the outlet in the direction of gravity, and a passage guiding liquid flowing from the outlet to a discharging port opened in a bottom of the negative pressure regulating unit.
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公开(公告)号：US20190001692A1
公开(公告)日：2019-01-03
申请号：US16006312
申请日：2018-06-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takuro Yamazaki , Toru Nakakubo , Kazuhiro Yamada , Yoshiyuki Nakagawa , Akiko Hammura
IPC: B41J2/175
Abstract: In a configuration having a circulation flow path in association with an ejection element, there is provided a liquid ejecting apparatus capable of circulating liquid suitably and maintaining stable ejection operation while reducing liquid vaporization, a power supply capacity, and the effect of noise. For this purpose, in a configuration in which liquid delivery mechanisms that facilitate a flow in a flow path are prepared in association with pressure chambers, the liquid delivery mechanisms are divided into a plurality of blocks and the liquid delivery mechanisms included in each of the blocks are driven at different timings.
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公开(公告)号：US09975340B2
公开(公告)日：2018-05-22
申请号：US15382039
申请日：2016-12-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： Seiichiro Karita , Shuzo Iwanaga , Kazuhiro Yamada , Akio Saito , Zentaro Tamenaga , Shingo Okushima , Yumi Komamiya , Tatsurou Mori , Takatsuna Aoki , Noriyasu Nagai , Akira Yamamoto
CPC classification number: B41J2/16505 , B41J2/14024 , B41J2/1404 , B41J2/14072 , B41J2/1408 , B41J2/14112 , B41J2/155 , B41J2/16585 , B41J2/18 , B41J2202/12 , B41J2202/20
Abstract: In a printing apparatus including a circulation system circulating a liquid, a volatile component included in the liquid evaporates from an ejection opening and thus characteristics of the liquid involving with concentration, viscosity and the like change. The invention provides a printing apparatus including: a page wide type liquid ejection head that includes an ejection opening ejecting a liquid, a print element generating energy for ejecting a liquid, and a pressure chamber having the print element provided therein; a cap that covers the ejection opening; and a circulator configured to circulate the liquid so that the liquid passes through the pressure chamber, wherein a circulation of the liquid is started after the cap is opened and the circulation of the liquid is stopped in a case where an image forming operation of ejecting the liquid from the ejection opening on the basis of a job is ended.
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Patent Agency Ranking
公开(公告)号：US20170341381A1
公开(公告)日：2017-11-30
申请号：US15597682
申请日：2017-05-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takatsuna Aoki , Shuzo Iwanaga , Seiichiro Karita , Kazuhiro Yamada , Shingo Okushima , Zentaro Tamenaga , Akira Yamamoto , Tatsurou Mori , Noriyasu Nagai , Akio Saito , Ryo Kasai
IPC: B41J2/045
CPC classification number: B41J2/04563 , B41J2/04528 , B41J2/04551 , B41J2/0458 , B41J2/1404 , B41J2/155 , B41J2202/12 , B41J2202/20
Abstract: A liquid discharge device to perform recording by use of a liquid discharge head including discharge ports to discharge a liquid, pressure generation elements to generate energy to be used to discharge the liquid, and pressure chambers communicating with the discharge ports. The liquid discharge device includes: a control unit to control a temperature of the liquid discharge head by applying heat with heating elements arranged in divided areas of a region of the liquid discharge head where the discharge ports are arranged. When there is recording data for the discharge port in a certain one of the divided areas, the control unit causes the heating element in the divided area to generate heat, and when there is no recording data for the discharge port in the certain divided area, the control unit keeps the heating element in the certain divided area from generating heat.
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公开(公告)号：US09457570B2
公开(公告)日：2016-10-04
申请号：US14503835
申请日：2014-10-01
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuhiro Yamada
CPC classification number: B41J2/14427 , B41J2/1404 , B41J2/1408 , B41J2/14088 , B41J2/155 , B41J2002/14459
Abstract: A liquid ejection head includes a plurality of recording element substrates that each include an energy generating element generating energy utilized for ejecting a liquid and that each have a supply port through which the liquid is supplied to the energy generating element, a plurality of support members that each have a flow passage communicating with a corresponding one of the supply ports and that each support a corresponding one of the plurality of recording element substrates, a base substrate that supports the plurality of support members, and a heat insulating member disposed between the flow passages and the base substrate. In the liquid ejection head, a thermal conductivity of the support members is equal to or greater than a thermal conductivity of the recording element substrates, and a thermal conductivity of the heat insulating member is less than a thermal conductivity of the base substrate.
Abstract translation: 液体喷射头包括多个记录元件基板，每个记录元件基板包括产生用于喷射液体的能量的能量产生元件，并且每个记录元件基板具有供应端口，液体通过该供给端口供应到能量产生元件;多个支撑元件， 每个具有与相应的一个供给口连通的流路，并且每个支撑多个记录元件基板中的相应一个记录元件基板，支撑多个支撑元件的基底基板和设置在流路之间的绝热元件 和基底。 在液体喷射头中，支撑构件的热导率等于或大于记录元件基板的热导率，并且隔热构件的导热率小于基底基板的热导率。
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公开(公告)号：US09452606B2
公开(公告)日：2016-09-27
申请号：US14477013
申请日：2014-09-04
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuhiro Yamada
CPC classification number: B41J2/155 , B41J2/1433 , B41J2202/11 , B41J2202/20
Abstract: A liquid ejection head includes a plurality of ejection members, each having an ejection port for ejecting liquid, an element for ejecting a liquid from the ejection port, a liquid chamber for storing liquid to be supplied to the ejection port and a heater for heating liquid, and a base substrate bearing the plurality of ejection members arranged thereon and having a common flow channel for supplying liquid to the plurality of liquid chambers. The common flow channel communicates with the liquid chambers by way of respective branch ports and each of the branch ports is provided with a notch portion at the upstream side thereof as viewed in the flow direction of liquid flowing through the common flow channel and the upstream side of each of the branch ports has a profile asymmetric with regard to a straight line passing through the center of gravity of the branch port and extending in the flow direction.
Abstract translation: 液体喷射头包括多个喷射构件，每个喷射构件具有用于喷射液体的喷射口，用于从喷射口喷射液体的元件，用于存储供给喷射口的液体的液体室和用于加热液体的加热器 以及支承有多个排出构件的基底基板，具有用于向多个液体室供给液体的公共流路。 公共流路通过相应的分支端口与液体室连通，并且每个分支端口在其流动通过公共流动通道的液体的流动方向和上游侧在其上游侧设置有切口部分 每个分支端口具有关于穿过分支端口的重心并沿流动方向延伸的直线的非对称轮廓。
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19.发明授权Liquid ejection head, method for manufacturing liquid ejection head, and liquid ejecting apparatus 有权液体喷射头，液体喷射头的制造方法和液体喷射装置公开(公告)号：US09254649B2
公开(公告)日：2016-02-09
申请号：US14707959
申请日：2015-05-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takatsugu Moriya , Shuzo Iwanaga , Kazuhiro Yamada , Takuto Moriguchi , Zentaro Tamenaga , Akira Yamamoto
CPC classification number: B41J2/14072 , B41J2/14024 , B41J2/1603 , B41J2/1623 , Y10T29/49156
Abstract: A liquid ejection head including: a support member, a plurality of printing element boards arranged linearly on the support member, an electric wiring member fixed to the support member, and configured to transmit an electrical signal necessary to eject a liquid to the plurality of printing element boards, a plurality of conductive members arranged in an arranging direction of the plurality of printing element boards, and configured to electrically connect the plurality of printing element boards to the electric wiring member, and a thermosetting sealing member extending in the arranging direction and covering the conductive members, connecting points of the printing element boards with the conductive members, and connecting points of the electric wiring member with the conductive members, wherein the sealing member is divided at, at least one place in the arranging direction.
Abstract translation: 一种液体喷射头，包括：支撑构件，在支撑构件上直线布置的多个印刷元件板，固定到支撑构件的电气布线构件，并且构造成将喷射液体所需的电信号传送到多个印刷 多个导电构件，沿着所述多个印刷基板的排列方向布置，并且被构造成将所述多个印刷元件板电连接到所述电气布线构件;以及热固性密封构件，其沿所述排列方向延伸并覆盖 导电构件，印刷单元板与导电构件的连接点以及电气布线构件与导电构件的连接点，其中密封构件在排列方向上的至少一个位置分开。
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公开(公告)号：US09216578B2
公开(公告)日：2015-12-22
申请号：US14709307
申请日：2015-05-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Zentaro Tamenaga , Takuto Moriguchi , Shuzo Iwanaga , Kazuhiro Yamada , Takatsugu Moriya , Akira Yamamoto
CPC classification number: B41J2/1433 , B41J2/14024 , B41J2/14072 , B41J2/14145 , B41J2002/14491 , B41J2202/11
Abstract: A liquid ejection head includes a recording element substrate including an electrode at a first side portion; an electrical wiring substrate having a wire line; a connecting portion connecting the electrode and the wire line; and a sealing material provided between the first side portion of the recording element substrate and the electrical wiring substrate. A first line and a second line are out of alignment in a direction along a side of the recording element substrate. The first line orthogonal to the side passes through a center of gravity of the recording element substrate. A second line passes through a center of a part covered with the sealing material and extends parallel to the first line. Of a part of the sealing material, a first area on the first line side has a larger volume than that of a second area opposite to the first line side.
Abstract translation: 液体喷射头包括在第一侧部分包括电极的记录元件基板; 具有导线的电布线基板; 连接电极和电线的连接部分; 以及设置在记录元件基板的第一侧部分和电布线基板之间的密封材料。 第一线和第二线沿着记录元件基板的一侧的方向不对齐。 与该侧正交的第一行通过记录元件基板的重心。 第二条线穿过被密封材料覆盖的部分的中心并平行于第一条线延伸。 在密封材料的一部分中，第一线路侧的第一区域具有比与第一线路侧相对的第二区域的体积更大的体积。
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