公开(公告)号：US20230271420A1

公开(公告)日：2023-08-31

申请号：US18313196

申请日：2023-05-05

Applicant: SEIKO EPSON CORPORATION

Inventor： Shigenori NAKAGAWA ,  Keiji MATSUMOTO

IPC: B41J2/165

CPC classification number: B41J2/16535 ,  B41J2/16538 ,  B41J2/16508 ,  B41J2002/1655 ,  B41J2002/16558

Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid from a nozzle that is disposed on a nozzle surface, a first wiping portion which is able to wipe away the liquid that is adhered to the nozzle surface, and a second wiping portion which is able to hold the liquid that is adhered to the nozzle surface by contacting the nozzle surface, wherein it is possible to perform a first maintenance operation in which the nozzle surface is wiped using the first wiping portion and a second maintenance operation in which the second wiping portion is caused to contact the nozzle surface due to the second wiping portion being biased by the first wiping portion.

公开(公告)号：US20200262205A1

公开(公告)日：2020-08-20

申请号：US16790373

申请日：2020-02-13

Applicant: SEIKO EPSON CORPORATION

Inventor： Shinya KOMATSU ,  Keiji MATSUMOTO

IPC: B41J2/165

Abstract: A recording device includes: an ink flow path that couples a liquid reservoir to the ejection head such that the ink stored in the liquid reservoir is supplied to the ejection head; a feeding pump exchangeably provided in the ink flow path and configured to feed the ink toward the ejection head; a deaerator provided in the ink flow path; a vacuum level adjustment mechanism configured to adjust a vacuum level in the deaerator; and a control portion that controls the vacuum level adjustment mechanism to adjust the vacuum level in the deaerator in accordance with a status of an operation to be executed.

公开(公告)号：US20140139588A1

公开(公告)日：2014-05-22

申请号：US14163878

申请日：2014-01-24

Applicant: SEIKO EPSON CORPORATION

Inventor： Chikashi NAKAMURA ,  Keiji MATSUMOTO ,  Toshihiko WAKABAYASHI ,  Jun USHIAMA

IPC: B41J2/165

CPC classification number: B41J2/16535 ,  B41J2/16552 ,  B41J2/16585

Abstract: Ratchets which regulate a rotation of either a reeling-out roller around which one end of a long wiping member which wipes ink attached to a recording head which ejects ink is wound, or a winding-up roller around which the other end of the wiping member is wound to which tension is applied due to a friction force which acts on the wiping member when performing wiping are provided.

Abstract translation: 调节卷绕辊的旋转的棘轮，卷绕卷绕辊的附着在喷墨墨水的记录头上的墨水擦拭的长擦拭部件的一端的卷绕辊或卷绕辊的另一端的卷绕辊 由于在进行擦拭时由于作用在擦拭部件上的摩擦力而施加张力。

公开(公告)号：US20210276333A1

公开(公告)日：2021-09-09

申请号：US17331224

申请日：2021-05-26

Applicant: Seiko Epson Corporation

Inventor： Shigenori NAKAGAWA ,  Keiji MATSUMOTO

IPC: B41J2/165

Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid from a nozzle that is disposed on a nozzle surface, a first wiping portion which is able to wipe away the liquid that is adhered to the nozzle surface, and a second wiping portion which is able to hold the liquid that is adhered to the nozzle surface by contacting the nozzle surface, wherein it is possible to perform a first maintenance operation in which the nozzle surface is wiped using the first wiping portion and a second maintenance operation in which the second wiping portion is caused to contact the nozzle surface due to the second wiping portion being biased by the first wiping portion.

公开(公告)号：US20170096008A1

公开(公告)日：2017-04-06

申请号：US15285293

申请日：2016-10-04

Applicant: SEIKO EPSON CORPORATION

Inventor： Shigenori NAKAGAWA ,  Keiji MATSUMOTO

IPC: B41J2/165

CPC classification number: B41J2/16535 ,  B41J2/16508 ,  B41J2/16538 ,  B41J2002/1655 ,  B41J2002/16558

Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid from a nozzle that is disposed on a nozzle surface, a first wiping portion which is able to wipe away the liquid that is adhered to the nozzle surface, and a second wiping portion which is able to hold the liquid that is adhered to the nozzle surface by contacting the nozzle surface, wherein it is possible to perform a first maintenance operation in which the nozzle surface is wiped using the first wiping portion and a second maintenance operation in which the second wiping portion is caused to contact the nozzle surface due to the second wiping portion being biased by the first wiping portion.

公开(公告)号：US20160144628A1

公开(公告)日：2016-05-26

申请号：US14939177

申请日：2015-11-12

Applicant: SEIKO EPSON CORPORATION

Inventor： Masahiko SATO ,  Keiji MATSUMOTO ,  Shigenori NAKAGAWA ,  Toshinobu YAMAZAKI

IPC: B41J2/175

CPC classification number: B41J2/17596 ,  B41J2/175

Abstract: A liquid ejecting apparatus includes a liquid ejecting unit which can eject liquid from a nozzle; a supply flow path through which liquid is supplied to the nozzle; a pressure adjusting unit which includes a pressure chamber which can store liquid; a storage chamber at least a part of which is formed by a gas permeable unit, and which stores liquid; a connection flow path which connects a space including a flow path portion from the pressure chamber to the nozzle and the pressure chamber, and the storage chamber; an opening-closing valve which can switch a communicating state between the space and the storage chamber through the connection flow path; and a pressurizing unit which pressurizes the storage chamber when the opening-closing valve is in the closed state.

Abstract translation: 液体喷射装置包括能够从喷嘴喷射液体的液体喷射单元; 供给流路，向喷嘴供给液体的供给流路; 压力调节单元，其包括可以储存液体的压力室; 存储室，其至少一部分由透气单元形成，并储存液体; 连接流路，其将包括来自压力室的流路部分的空间与压力室连接，以及存储室; 开闭阀，其可以通过连接流路切换空间与储藏室之间的连通状态; 以及当开闭阀处于关闭状态时对存储室加压的加压单元。

公开(公告)号：US20160096370A1

公开(公告)日：2016-04-07

申请号：US14969314

申请日：2015-12-15

Applicant: SEIKO EPSON CORPORATION

Inventor： Shuhei HARADA ,  Keiji MATSUMOTO ,  Manabu YAMADA

IPC: B41J2/165

CPC classification number: B41J2/16517 ,  B41J2/185

Abstract: First, second, and third ink absorbing bodies are accommodated in a container of a recovery reservoir in this order from the side corresponding to a bottom surface of the container, so that an introduction chamber is defined in the middle of a recovery space. A lid having a shutter plate and a communication hole is located over the third ink absorbing body. The upper side of the introduction chamber is covered by the shutter plate to suppress volatilization of solvent element of waste ink introduced into the introduction chamber. In addition, the communication hole is located in a portion of the upper surface of the third ink absorbing body, so that solvent element of ink absorbed by the third ink absorption body volatilizes.

公开(公告)号：US20150191017A1

公开(公告)日：2015-07-09

申请号：US14591374

申请日：2015-01-07

Applicant: SEIKO EPSON CORPORATION

Inventor： Keiji MATSUMOTO ,  Hitotoshi KIMURA ,  Takayuki KAWAKAMI

IPC: B41J2/165

CPC classification number: B41J2/16579 ,  B41J2/0451 ,  B41J2/04551 ,  B41J2/04555 ,  B41J2/04578 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/14153 ,  B41J2/14209 ,  B41J2/14233 ,  B41J2/14274 ,  B41J2/14314 ,  B41J2/165 ,  B41J2002/14354 ,  B41J2002/16573

Abstract: A liquid ejecting apparatus includes a liquid ejecting unit that has a plurality of nozzles that eject liquid drops, and performs a recording process on a recording medium; and an abnormal ejection detecting unit that detects whether abnormal ejection in the nozzles exists, in which when the abnormal ejection detecting unit detects that nozzles with abnormal ejection exist, if a time required for a maintenance operation in order to solve the abnormal ejection of the nozzles is equal to or shorter than a threshold value, the recording process is interrupted and the maintenance operation is performed, and if the time required for the maintenance operation is longer than the threshold value, the maintenance operation is reserved and the recording process is continued.

Abstract translation: 液体喷射装置包括：液体喷射单元，其具有喷射液滴的多个喷嘴，并对记录介质进行记录处理; 以及异常喷射检测单元，其检测是否存在喷嘴中的异常喷射，其中当异常喷射检测单元检测到存在具有异常喷射的喷嘴时，如果维持操作所需的时间以解决喷嘴的异常喷射 等于或小于阈值，记录处理中断并执行维护操作，并且如果维护操作所需的时间长于阈值，则保留维护操作并继续记录处理。

公开(公告)号：US20150174905A1

公开(公告)日：2015-06-25

申请号：US14640238

申请日：2015-03-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Shuhei HARADA ,  Keiji MATSUMOTO ,  Manabu YAMADA

IPC: B41J2/165

CPC classification number: B41J2/16517 ,  B41J2/185

Abstract: First, second, and third ink absorbing bodies are accommodated in a container of a recovery reservoir in this order from the side corresponding to a bottom surface of the container, so that an introduction chamber is defined in the middle of a recovery space. A lid having a shutter plate and a communication hole is located over the third ink absorbing body. The upper side of the introduction chamber is covered by the shutter plate to suppress volatilization of solvent element of waste ink introduced into the introduction chamber. In addition, the communication hole is located in a portion of the upper surface of the third ink absorbing body, so that solvent element of ink absorbed by the third ink absorption body volatilizes.

公开(公告)号：US20190105902A1

公开(公告)日：2019-04-11

申请号：US16214955

申请日：2018-12-10

Applicant: Seiko Epson Corporation

Inventor： Akira MIZUTANI ,  Hiroshi MUKAI ,  Hiroki NAKANE ,  Toshihiro SHINBARA ,  Keiji MATSUMOTO ,  Masako FUKUDA

IPC: B41J2/165 ,  C09D11/322

Abstract: An ink jet recording apparatus includes a recording head having a plurality of nozzles through which an ink composition containing an inorganic pigment is ejected, a nozzle surface having nozzle orifices, and a liquid-repellent film disposed on the nozzle surface; an absorbing member that absorbs the ink composition containing the inorganic pigment from the nozzle orifices and the nozzle surface; and an actuating mechanism including a pressing member that presses the absorbing member and the nozzle surface relative to each other. The actuating mechanism moves at least one of the absorbing member and the recording head relative to the other to perform a cleaning operation in which the ink composition is removed from the nozzle surface with the absorbing member. The absorbing member contains an impregnation liquid having a surface tension of 45 mN/m or less during the cleaning operation.