公开(公告)号：US20220371338A1

公开(公告)日：2022-11-24

申请号：US17663796

申请日：2022-05-17

Applicant: SEIKO EPSON CORPORATION

Inventor： Haruhisa UEZAWA ,  Hiroki KOBAYASHI ,  Katsuhiro OKUBO ,  Kentaro MURAKAMI ,  Takahiro KANEGAE ,  Shingo TOMIMATSU

IPC: B41J11/00

Abstract: A liquid ejecting head includes: a plurality of head chips having nozzles; a holder holding the plurality of head chips; and a planar heater disposed on the holder and heating the holder, in which the heater includes an outer peripheral region along an outer edge of the holder and a middle region positioned inside the outer peripheral region in a plan view, and a heat generation amount per unit time of the outer peripheral region is larger than a heat generation amount per unit time of the middle region.

公开(公告)号：US20230202185A1

公开(公告)日：2023-06-29

申请号：US18088810

申请日：2022-12-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Kentaro MURAKAMI ,  Katsuhiro OKUBO ,  Takahiro KANEGAE ,  Haruhisa UEZAWA ,  Hiroki KOBAYASHI

IPC: B41J2/175

CPC classification number: B41J2/17563

Abstract: A liquid ejecting head includes: a nozzle row configured by arranging nozzles ejecting a liquid in a first-direction in a second-direction orthogonal to the first-direction; a drive element; and stacked components defining a common liquid chamber communicating with the nozzle row, in which the stacked components include a filter partitioning the common liquid chamber into an upstream common liquid chamber and a downstream common liquid chamber, a first-case defining a first-common-liquid-chamber-portion as a part of the upstream common liquid chamber and stacked on the filter, and a second-case defining a second-common-liquid-chamber-portion as a part of the upstream common liquid chamber and stacked on the first-case, the second-common liquid-chamber-portion is positioned in a direction opposite to the first-direction from the drive element, and a width of the second-common-liquid-chamber-portion in a third-direction orthogonal to the first-direction and the second-direction is longer than a width of the first-common-liquid-chamber-portion in the third-direction.

公开(公告)号：US20220305788A1

公开(公告)日：2022-09-29

申请号：US17701732

申请日：2022-03-23

Applicant: Seiko Epson Corporation

Inventor： Takahiro KANEGAE ,  Katsuhiro OKUBO ,  Kentaro MURAKAMI ,  Shingo TOMIMATSU ,  Hiroki KOBAYASHI ,  Haruhisa UEZAWA

IPC: B41J2/15 ,  B41J2/14

Abstract: A liquid ejecting head includes: a plurality of head chips having a nozzle surface; a thermally conductive holder holding the plurality of head chips; a thermally conductive flow path structure provided with a flow path of a liquid supplied to the plurality of head chips; and a planar heater disposed between the holder and the flow path structure and along a direction parallel to the nozzle surface, in which the heater overlaps the plurality of head chips in a plan view.

公开(公告)号：US20190176472A1

公开(公告)日：2019-06-13

申请号：US16211046

申请日：2018-12-05

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiromichi NAKASHIMA ,  Yuichi URABE ,  Kentaro MURAKAMI ,  Shuji FUNADA ,  Hisashi SATO ,  Akihiro FURUYA

IPC: B41J2/165

Abstract: A liquid ejecting apparatus includes a liquid ejecting head provided with a nozzle and a cap that executes capping for forming a first space to which the nozzle is open, in a surrounding manner. The cap includes a capping member that is provided with a suction hole and an atmosphere communicating hole which is configured to allow an inside of the cap to communicate with an outside, a liquid absorber that is disposed inside the capping member, and a reception member that is disposed inside the capping member so as to form a second space between the liquid absorber and the reception member. The second space is positioned closer to a side of the liquid ejecting head than to the liquid absorber in a posture of capping, and the atmosphere communicating hole is open to the second space.

公开(公告)号：US20170217199A1

公开(公告)日：2017-08-03

申请号：US15418934

申请日：2017-01-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Ken YAMAGISHI ,  Hisashi SATO ,  Kentaro MURAKAMI ,  Nagatoshi KASAHARA ,  Kazuya TAJIMA

IPC: B41J2/175

CPC classification number: B41J2/17596 ,  B41J2/175

Abstract: There is provided a flow path structure including: a storage chamber that stores a liquid; a pressure receiver that receives a first pressure inside the storage chamber and a second pressure outside the storage chamber; a valve that changes the first pressure according to the movement of the pressure receiver; and a pressing portion that presses the pressure receiver according to the supply pressure of the fluid from a fluid supply source, in which an area of the front end of the pressing portion that presses the pressure receiver is smaller than an area of a rear end that receives the supply pressure.

公开(公告)号：US20160114582A1

公开(公告)日：2016-04-28

申请号：US14920679

申请日：2015-10-22

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroyuki HAGIWARA ,  Toshinobu YAMAZAKI ,  Kentaro MURAKAMI ,  Isao TAKIMOTO ,  Hidekazu TODOROKI ,  Tomoo KINOSHITA ,  Takayuki SHIMOSAKA ,  Kazushige HAKEDA

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/155 ,  B41J2/14233 ,  B41J2002/14362 ,  B41J2002/14491 ,  B41J2202/11 ,  B41J2202/21

Abstract: Provided is a liquid ejecting head including: a first board on which a driving element for ejecting liquid is installed; a second board which is installed on the surface of the first board and covers the driving element; a wiring board that includes a first surface on which a wiring, where a driving signal is supplied to the driving element, is formed and a second surface that is at the opposite side to the first surface, and where the first surface of a first end section is joined to the surface of the first board; and a filling material which covers the wiring by being formed at least between the first surface and a wall surface of the second board, in which the height of the filling material with respect to the surface of the first board is high at the first surface side in comparison to the second surface side.

Abstract translation: 提供一种液体喷射头，包括：第一板，其上安装有用于喷射液体的驱动元件; 第二板，其安装在第一板的表面上并覆盖驱动元件; 布线板，其包括第一表面，在所述第一表面上形成有向驱动元件提供驱动信号的布线和与第一表面相对的第二表面，并且第一表面的第一端 部分连接到第一板的表面; 以及填充材料，其通过至少形成在所述第一板的所述第一表面和壁表面之间而形成，所述第一板的所述填充材料相对于所述第一板的表面的高度在所述第一表面侧高 与第二表面侧相比。

公开(公告)号：US20220305785A1

公开(公告)日：2022-09-29

申请号：US17701746

申请日：2022-03-23

Applicant: Seiko Epson Corporation

Inventor： Takahiro KANEGAE ,  Katsuhiro OKUBO ,  Kentaro MURAKAMI ,  Shingo TOMIMATSU ,  Hiroki KOBAYASHI ,  Haruhisa UEZAWA

IPC: B41J2/14 ,  B41J2/155 ,  B41J2/15

Abstract: A liquid ejecting head includes: head chips including a first-head-chip and a second-head-chip; a holder holding the head chips; and a heater along a direction parallel to a nozzle surface. The first-head-chip and the second-head-chip are disposed to be offset from each other in both a first-direction and a second-direction parallel to the nozzle surface and intersecting with each other. When a first-side is one of the four sides of a virtual rectangle circumscribing the aggregate of the head chips and a second-side and a third-side are coupled to both ends of the first-side, the first-head-chip is in contact with the first-side and the third-side and the second-head chip is in contact with the second-side. The heater overlaps the head chips. A first-region surrounded by the first-side, the second-side, the first-head-chip, and the second-head-chip includes a first-outside-part positioned outside the outer edge of the heater.

公开(公告)号：US20220234350A1

公开(公告)日：2022-07-28

申请号：US17582304

申请日：2022-01-24

Applicant: Seiko Epson Corporation

Inventor： Kentaro MURAKAMI ,  Hiroaki OKUI

IPC: B41J2/045 ,  B41J2/175

Abstract: A liquid ejecting head includes: a nozzle; a flow path member in which a flow path communicating with the nozzle is formed and which has an inner wall surface defining the flow path and an outer wall surface that faces away from the flow path with respect to the inner wall surface; and a temperature sensor disposed on a part of the outer wall surface and configured to detect a temperature of the liquid in the flow path. The flow path includes a narrowed region having a narrow width in a second direction orthogonal to a first direction in a direction in which the flow path extends, and the temperature sensor is disposed on a portion of the outer wall surface that forms the narrowed region.

公开(公告)号：US20200070520A1

公开(公告)日：2020-03-05

申请号：US16552592

申请日：2019-08-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Kentaro MURAKAMI ,  Katsuhiro OKUBO ,  Hiroyuki HAGIWARA ,  Hiroyuki KOBAYASHI

IPC: B41J2/165 ,  B41J2/175

Abstract: A liquid ejecting head, a liquid ejecting apparatus, a liquid ejecting head cleaning method, and a liquid ejecting head manufacturing method, in which the liquid ejecting head includes a nozzle that ejects a liquid, a liquid supply path that supplies the liquid to the nozzle, a filter that filters the liquid flowing in the liquid supply path, and a liquid discharge path open in the liquid supply path between the filter and the nozzle. The liquid discharge path includes an on-off valve that opens and closes the opening. The on-off valve permits passage of the liquid from a liquid supply path side to a liquid discharge path side while blocking passage of the liquid from the liquid discharge path side to the liquid supply path side.

公开(公告)号：US20180056657A1

公开(公告)日：2018-03-01

申请号：US15660549

申请日：2017-07-26

Applicant: SEIKO EPSON CORPORATION

Inventor： Kentaro MURAKAMI ,  Hiroyuki KOBAYASHI ,  Yasushi YAJIMA ,  Toshiaki ISHIKAWA ,  Toru CHINO

IPC: B41J2/175

CPC classification number: B41J2/1752 ,  B41J2/17523

Abstract: A method of manufacturing a liquid ejecting apparatus which includes a container holder on which a first liquid container and a second liquid container are detachably mounted, an nozzles for ejecting the liquid supplied from each of the liquid containers, and an adjuster that is disposed at a position covered by the first liquid container and not covered by the second liquid container, the method including: ejecting liquid by the nozzles in a state in which the second liquid container is mounted without the first liquid container being mounted; and adjusting the liquid ejecting apparatus by the adjuster based on an ejection result in the ejecting of the liquid.