公开(公告)号：US20240184240A1

公开(公告)日：2024-06-06

申请号：US18529220

申请日：2023-12-05

Applicant: SEIKO EPSON CORPORATION

Inventor： Shun OYA ,  Yoshihiro KOIZUMI ,  Tadahiro MIZUTANI ,  Takumi NAGASHIMA

IPC: G03G21/18

CPC classification number: G03G21/1814 ,  G03G2221/1861 ,  G03G2221/1869 ,  G03G2221/1884

Abstract: An attachment that is detachably mounted to a cartridge mounting unit of a printing apparatus, the cartridge mounting unit including a liquid introduction portion that receives a liquid, and a restricting mechanism that restricts a rotation movement of an incompatible cartridge in a rotation mounting direction to be mounted by interfering with the incompatible cartridge, the attachment including a release portion that releases restriction by the restricting mechanism by pushing a part of the restricting mechanism in a pre-determined insertion direction, and a maintaining portion that maintains a mounted state of the attachment in cooperation with the cartridge mounting unit.

公开(公告)号：US20230398783A1

公开(公告)日：2023-12-14

申请号：US18033426

申请日：2021-10-11

Applicant: SEIKO EPSON CORPORATION

Inventor： Takumi NAGASHIMA ,  Yoshihiro KOIZUMI ,  Shun OYA

IPC: B41J2/175 ,  B41J2/04

CPC classification number: B41J2/17513 ,  B41J2/17523 ,  B41J2/04

Abstract: A technique for preventing a decrease in an amount of liquid contained in a cartridge is provided. The cartridge includes a liquid containing portion and a liquid supply portion. The liquid supply portion is coupled to the liquid inlet portion due to rotational movement of a containing-portion-rear-wall side of the cartridge downward around a rotation fulcrum, which is located on the insertion direction side, of the cartridge mounting portion. In the insertion direction, a first distance between a liquid flowing-in port and a rear wall inner surface, which is an inner surface of a containing portion rear wall, is shorter than a second distance between the liquid flowing-in port and a front wall inner surface, which is an inner surface of a containing portion front wall.

公开(公告)号：US20230311522A1

公开(公告)日：2023-10-05

申请号：US18127048

申请日：2023-03-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Tadahiro MIZUTANI ,  Yoshihiro KOIZUMI ,  Taku ISHIZAWA ,  Shun OYA ,  Tadashi WATANABE ,  Seigo MIYAZAWA

IPC: B41J2/175

CPC classification number: B41J2/17506 ,  B41J2/17596

Abstract: An ink refill container for refilling a printer having an ink inlet flow-path member with ink includes: a container body portion configured to store ink; and an ink-outlet forming portion coupled to the container body portion and having a cylindrical portion forming an ink outlet. The ink-outlet forming portion includes a valve disposed in the cylindrical portion and configured to be opened by the ink inlet flow-path member inserted in the cylindrical portion, and closed by withdrawal of the ink inlet flow-path member from the cylindrical portion; a sealing member disposed at the ink outlet and configured to be in contact with the valve in a closed state of the valve; a holder member configured to hold at least one of the valve and the sealing member; and a fixing portion configured to fix the holder member to the cylindrical portion.

公开(公告)号：US20230001700A1

公开(公告)日：2023-01-05

申请号：US17856446

申请日：2022-07-01

Applicant: SEIKO EPSON CORPORATION

Inventor： Shun OYA

IPC: B41J2/175

Abstract: A cartridge detachably mounted in a liquid ejecting apparatus including a liquid introduction portion includes: a liquid supply portion having a supply portion flow path; a valve seat having a valve seat insertion port; a valve body upstream of the valve seat; a biasing member biasing the valve body toward the valve seat; a cap located downstream of the valve seat; and a liquid absorbing material in contact with the cap, in which the cap has a first surface facing the valve seat, a second surface facing the first surface and contacting the liquid absorbing material, a cap insertion port formed over the first and second surfaces, into which the liquid introduction portion is inserted, a groove formed in the first surface and facing the valve seat, and a hole formed over the first and second surfaces and coupled to the groove, and liquid absorbing material is in the hole.

公开(公告)号：US20220410575A1

公开(公告)日：2022-12-29

申请号：US17849918

申请日：2022-06-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroto HANBA ,  Yoshihiro KOIZUMI ,  Shun OYA ,  Takumi NAGASHIMA

IPC: B41J2/175

Abstract: A cartridge includes a liquid container and an adaptor. The liquid container has a liquid storage containing a liquid to be supplied to a printing apparatus, a liquid supply section configured to supply the liquid contained in the liquid storage to a liquid introduction section, and an adaptor mounting section. The adaptor is mounted on the adaptor mounting section and has a terminal placement section in which a cartridge-side terminal electrically connected to an apparatus-side terminal is disposed and an insertion aperture through which the liquid introduction section passes. The adaptor mounting section is provided with a mounting mechanism for mounting the adaptor, which has a predetermined constant shape.

公开(公告)号：US20220314631A1

公开(公告)日：2022-10-06

申请号：US17707128

申请日：2022-03-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Shun OYA ,  Tadahiro MIZUTANI ,  Yoshihiro KOIZUMI ,  Takumi NAGASHIMA

IPC: B41J2/175

Abstract: The cartridge includes: a liquid containing portion, a liquid supply portion, an arrangement portion having the liquid supply portion arranged inside thereof and having a bottom wall facing a distal end of the liquid supply portion, in which the bottom wall has an opening portion through which the liquid introduction portion is inserted at a position facing the distal end, a first liquid absorbing member arranged inside the arrangement portion, of which a part of the first liquid absorbing member is exposed from the opening portion, and a second liquid absorbing member arranged inside the arrangement portion and coming into contact with the first liquid absorbing member.

公开(公告)号：US20220097389A1

公开(公告)日：2022-03-31

申请号：US17483997

申请日：2021-09-24

Applicant: SEIKO EPSON CORPORATION

Inventor： Shun OYA ,  Yoshihiro KOIZUMI ,  Takumi NAGASHIMA

IPC: B41J2/175

Abstract: A cartridge includes a cartridge side terminal electrically coupled to a device side terminal, a liquid supply portion that is coupled to a liquid introduction portion and that makes a liquid flow to the liquid introduction portion, a terminal positioning portion that performs positioning by receiving a device side terminal positioning portion to regulate movement of the cartridge side terminal with respect to the device side terminal, and a supply portion positioning portion that performs positioning by receiving a device side supply portion positioning portion to regulate movement of the liquid supply portion with respect to the liquid introduction portion. A first direction is a direction intersecting a second direction, the first direction being a direction in which the terminal positioning portion extends, the second direction being a direction in which the supply portion positioning portion extends.

公开(公告)号：US20200147974A1

公开(公告)日：2020-05-14

申请号：US16681456

申请日：2019-11-12

Applicant: SEIKO EPSON CORPORATION

Inventor： Shun OYA ,  Yoshihiro KOIZUMI

IPC: B41J2/175 ,  B41J2/14 ,  B41J2/195

Abstract: In a state in which a liquid storage body is installed in a liquid ejecting apparatus, at least part of the upper edge of a liquid storage section and at least part of the lower edge of the liquid storage section are in contact with a case and a first inner surface of the liquid storage section and its second inner surface opposite to the first inner surface are separated from each other. The liquid storage section is structured so that as a liquid is supplied, the first inner surface and second inner surface gradually approach each other and, at the same time, come into contact with each other from top to bottom, forming, at the bottom of the interior of the liquid storage section, a liquid flow path through which the liquid flows from the liquid storage section to the liquid supply section.

公开(公告)号：US20180281433A1

公开(公告)日：2018-10-04

申请号：US15778544

申请日：2016-10-28

Applicant: Seiko Epson Corporation

Inventor： Shun OYA ,  Taku ISHIZAWA ,  Atsushi KOBAYASHI

IPC: B41J2/175

Abstract: A liquid supply unit includes a first wall part to a seventh wall part. The first wall part includes a liquid supply part and an outer peripheral wall surrounding the liquid supply part and protruding in a direction from the second wall part toward the first wall part so as to come into contact with a sealing member of a carriage. The liquid supply part has a filter for supplying liquid to a liquid introduction part upon coming into contact with the liquid introduction part. A distance between the third wall part and the fourth wall part is larger than a distance between the fifth wall part and the sixth wall part. In a plan view in a direction from the first wall part toward the second wall part, a length of the outer peripheral wall in a first direction from the third wall part toward the fourth wall part is larger than a length in a second direction from the fifth wall part toward the sixth wall part. In a state of the liquid supply unit mounted on the carriage, the first direction is set along a moving direction of the carriage.

公开(公告)号：US20250121602A1

公开(公告)日：2025-04-17

申请号：US18568497

申请日：2022-06-13

Applicant: SEIKO EPSON CORPORATION

Inventor： Shun OYA ,  Akihiko MARUYAMA ,  Takumi NAGASHIMA ,  Yoshihiro KOIZUMI

IPC: B41J2/175

Abstract: A cartridge mounted on a cartridge mounting section of a printing device having a liquid introduction section for receiving a liquid, the cartridge includes a liquid accommodating section configured to accommodate the liquid, a bottom wall on which a liquid supply section that is coupled to the liquid introduction section and supplies the liquid is disposed, and a rib formed at the bottom wall.