公开(公告)号：US20220242135A1

公开(公告)日：2022-08-04

申请号：US17649098

申请日：2022-01-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Toshio NAKATA ,  Yuichi URABE ,  Hisashi SATO ,  Sawako TSUJIMURA ,  Shinji HIRATA ,  Yoshiaki KISHII

IPC: B41J2/175

Abstract: A liquid circulation mechanism includes a first storage portion configured to store liquid to be supplied to a liquid discharging head, a second storage portion configured to store the liquid collected from the liquid discharging head, a third storage portion configured to store the liquid between the second storage portion and the first storage portion, a first check valve allowing flow of the liquid from the second storage portion to the third storage portion while regulating flow of the liquid from the third storage portion to the second storage portion, in the second collection flow path, and a second check valve allowing flow of the liquid from the third storage portion to the first storage portion while regulating flow of the liquid from the first storage portion to the third storage portion, in the third collection flow path.

公开(公告)号：US20210379892A1

公开(公告)日：2021-12-09

申请号：US17341603

申请日：2021-06-08

Applicant: SEIKO EPSON CORPORATION

Inventor： Toshio NAKATA ,  Yuichi URABE

IPC: B41J2/165

Abstract: A liquid ejecting apparatus includes a liquid ejecting head configured to eject liquid from a nozzle onto a medium to perform printing, a liquid accommodating unit configured to receive, via an opening, the liquid ejected by empty discharging that ejects the liquid from the liquid ejecting head separately from the printing, a cover movable to a closed position where the opening of the liquid accommodating unit is covered and an open position where the opening is opened, and a detection unit configured to detect the cover positioned at the closed position or the open position.

公开(公告)号：US20210053359A1

公开(公告)日：2021-02-25

申请号：US16996155

申请日：2020-08-18

Applicant: Seiko Epson Corporation

Inventor： Yoshiaki KISHII ,  Hisashi SATO ,  Eri TANAKA ,  Kazuyuki FUJIOKA ,  Yuichi URABE

IPC: B41J2/175

Abstract: A liquid ejecting apparatus including a liquid ejecting portion that ejects a liquid, a liquid supply flow path that supplies the liquid accommodated in a liquid supply source to the liquid ejecting portion, a storage portion that is provided in the liquid supply flow path and that stores the liquid, a pressure mechanism that changes a volume of the storage portion by making pressure act thereon, a liquid filling mechanism that fills the liquid inside the liquid supply source into the liquid supply flow path, and a control portion that fills the liquid into the liquid supply flow path while the volume of the storage portion is, by making pressure act on the flexible portion, made smaller than when the pressure does not act on the flexible portion, and after the filling, ends a state in which the pressure is made to act on the flexible portion.

公开(公告)号：US20220242128A1

公开(公告)日：2022-08-04

申请号：US17649834

申请日：2022-02-03

Applicant: Seiko Epson Corporation

Inventor： Hisashi SATO ,  Kazushi ARAFUKA ,  Yuichi URABE

IPC: B41J2/165 ,  B41J11/00

Abstract: A liquid ejecting apparatus includes: a head that ejects a liquid; a curing portion that cures the liquid by emitting energy to the liquid; and a waste-liquid collecting portion that collects the liquid as waste liquid, in which the waste-liquid collecting portion includes an absorber that absorbs the liquid from the head, a first rotational shaft that holds an unused portion of the absorber, and a second rotational shaft that holds a used portion of the absorber, and the curing portion emits the energy to the liquid absorbed by the absorber.

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：US20150022598A1

公开(公告)日：2015-01-22

申请号：US14484274

申请日：2014-09-12

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuichi URABE

IPC: B41J2/175

CPC classification number: B41J2/17559 ,  B41J2/1752 ,  B41J2/17523 ,  B41J2/17553 ,  Y10T29/53

Abstract: A cartridge assembly includes a plurality of ink cartridges each having a cartridge case that holds ink therein, and at least one connecting member that connects the plurality of ink cartridges together in a connection direction. The ink cartridges connected by the at least one connecting member are movable relative to each other in the connection direction of the ink cartridges.

Abstract translation: 墨盒组件包括多个墨盒，每个墨盒具有将墨水保持在其中的墨盒壳体;以及至少一个将多个墨盒沿连接方向连接在一起的连接件。 通过至少一个连接构件连接的墨盒可以在墨盒的连接方向上相对于彼此移动。

公开(公告)号：US20220242136A1

公开(公告)日：2022-08-04

申请号：US17649011

申请日：2022-01-26

Applicant: Seiko Epson Corporation

Inventor： Toshio NAKATA ,  Yuichi URABE ,  Kazushi ARAFUKA ,  Yuki SHIOHARA ,  Munechika OTSURU

IPC: B41J2/18 ,  B41J2/175

Abstract: A liquid circulation mechanism includes a supply flow path making a liquid supply source and a liquid discharging head communicate with each other and a collection flow path making the liquid discharging head and a connection portion of the supply flow path communicate with each other, in which a branch portion, a plurality of flow paths branched at the branch portion, and a merging portion, in which the plurality of flow paths are merged, are provided in at least one of the supply flow path and the collection flow path. Pressure adjustment portions, which are provided in the plurality of flow paths and open the flow paths when a pressure on the liquid discharging head side is equal to a predetermined pressure, have different the predetermined pressures for opening the flow paths in the plurality of flow paths.

公开(公告)号：US20200079093A1

公开(公告)日：2020-03-12

申请号：US16569187

申请日：2019-09-12

Applicant: SEIKO EPSON CORPORATION

Inventor： Hisashi SATO ,  Kazuyuki FUJIOKA ,  Yuichi URABE ,  Hitotoshi KIMURA

IPC: B41J2/175 ,  B41J2/165

Abstract: A liquid reservoir unit includes a reservoir portion, an outflow portion disposed at a position near a first end of the reservoir portion, and an inflow portion disposed at a position near the first end of the reservoir portion. The outflow portion includes an outflow opening opened to an interior of the reservoir portion, and the inflow portion includes an inflow opening opened to the interior of the reservoir portion. The outflow opening and the inflow opening are located at different positions in a width direction which is a lengthwise direction of the reservoir portion when the reservoir portion is viewed from the first end, and also located at different positions in a depth direction from the first end toward a second end on the opposite side to the first end.

公开(公告)号：US20200070517A1

公开(公告)日：2020-03-05

申请号：US16550861

申请日：2019-08-26

Applicant: SEIKO EPSON CORPORATION

Inventor： Hisashi SATO ,  Kazuyuki FUJIOKA ,  Yuichi URABE ,  Hiroyuki ITO

IPC: B41J2/14 ,  B41J2/055

Abstract: A liquid ejecting apparatus includes a liquid supply flow path configured to supply a liquid stored in a liquid supply source to a liquid ejecting portion, a reservoir portion provided in the liquid supply flow path, an on-off valve provided between the liquid supply source and the reservoir portion, a discharge mechanism configured to discharge the liquid in the liquid supply flow path by depressurizing the liquid supply flow path, and a pressure mechanism configured to apply a negative pressure to the interior of the reservoir portion from the exterior. A negative pressure equal to or larger than a negative pressure applied to the interior of the reservoir portion by the discharge mechanism, is applied to the interior of the reservoir portion in a maintenance operation in which the liquid supply flow path is depressurized by the discharge mechanism while the on-off valve is closed.

公开(公告)号：US20180111375A1

公开(公告)日：2018-04-26

申请号：US15787086

申请日：2017-10-18

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuichi URABE ,  Kazushi ARAFUKA ,  Ken INOUE

IPC: B41J2/165

CPC classification number: B41J2/16538 ,  B41J2/16541 ,  B41J2/16544

Abstract: There is provided a printing apparatus which performs printing by ejecting ink from a nozzle, including: a wiper blade that abuts on a nozzle surface on which an opening of the nozzle is formed, and moves in a first direction to wipe the ink adhering to the nozzle surface; and a cleaner that abuts on the moving wiper blade and scrapes off the ink adhering to the wiper blade, in which the wiper blade includes a blade member which protrudes in a second direction which is substantially orthogonal to the first direction, and in which the cleaner includes a scraping member which protrudes in a third direction which is a direction opposite to the second direction.