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公开(公告)号：US20250018716A1
公开(公告)日：2025-01-16
申请号：US18770724
申请日：2024-07-12
Applicant: SEIKO EPSON CORPORATION
Inventor： Seiji TOJO
Abstract: A liquid ejection device includes a liquid ejection head that performs printing by ejecting liquid from a plurality of nozzles in an ejection direction, which intersects a vertical direction, from a plurality of nozzles onto a transported medium and a control section configured to control the liquid ejection head, wherein the liquid has a pigment component, the liquid ejection head is provided with a nozzle row in which a plurality of the nozzles is arranged in parallel, and the control section performs flushing which is ejection of the liquid not related to the printing from the plurality of nozzles with an ejection amount based on a height difference of the plurality of nozzles.
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公开(公告)号：US20210291539A1
公开(公告)日：2021-09-23
申请号：US17339277
申请日：2021-06-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Seiji TOJO
Abstract: A liquid ejecting apparatus includes a liquid ejecting portion having a nozzle ejecting a liquid onto a medium, a liquid storage portion that stores the liquid, a supply flow path through which the liquid storage portion communicates with the liquid ejecting portion, an opening/closing mechanism having an opening/closing portion bringing the supply flow path into an open state or a closed state and an operation portion operating the opening/closing portion, a carriage mounted with the liquid ejecting portion and the opening/closing mechanism and configured to reciprocate in a main scanning direction, a contact portion that comes in contact with the opening/closing mechanism when the carriage moves while the supply flow path is in the closed state, and a detection portion that detects contact between the opening/closing mechanism and the contact portion.
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公开(公告)号：US20200086649A1
公开(公告)日：2020-03-19
申请号：US16571621
申请日：2019-09-16
Applicant: SEIKO EPSON CORPORATION
Inventor： Seiji TOJO
Abstract: A waste liquid container includes a waste liquid introduction portion being coupled to a discharge portion when the waste liquid container is mounted on a mounting portion, an accommodation portion accommodating waste liquid discharged from the discharge portion, and a restricted portion having a contact portion configured to make contact with a restricting portion and restricting movement of the waste liquid container in a detachment direction opposite to a mounting direction by contact between the contact portion and the restricting portion in a state in which the waste liquid container is mounted on the mounting portion, wherein the contact portion is arranged at a position which does not overlap with a center of an opening of the waste liquid introduction portion in a vertical direction when seen from a side on which the waste liquid introduction portion is opened.
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公开(公告)号：US20230339233A1
公开(公告)日：2023-10-26
申请号：US18302054
申请日：2023-04-18
Applicant: SEIKO EPSON CORPORATION
Inventor： Seiya SATO , Seiji TOJO , Akihiko MARUYAMA
IPC: B41J2/175
CPC classification number: B41J2/17523
Abstract: A supply unit in which a liquid container including a coupling portion is detachably mounted includes a liquid introducing portion to which the coupling portion of the liquid container is coupled, a pressing member configured to press the liquid container in an uncoupling direction, which is a direction opposite to a coupling direction, when a direction in which the liquid container is coupled to the liquid introducing portion is defined as the coupling direction, an engaging portion configured to engage with the liquid container when the liquid container is coupled to the liquid introducing portion, and a speed reduction portion configured to reduce, when engagement of the engaging portion with the liquid container is released, a moving speed of the liquid container moving in the uncoupling direction.
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公开(公告)号：US20200062000A1
公开(公告)日：2020-02-27
申请号：US16549192
申请日：2019-08-23
Applicant: SEIKO EPSON CORPORATION
Inventor： Seiji TOJO
IPC: B41J2/175
Abstract: A liquid ejecting apparatus includes a liquid ejecting portion having a nozzle ejecting a liquid onto a medium, a liquid storage portion that stores the liquid, a supply flow path through which the liquid storage portion communicates with the liquid ejecting portion, an opening/closing mechanism having an opening/closing portion bringing the supply flow path into an open state or a closed state and an operation portion operating the opening/closing portion, a carriage mounted with the liquid ejecting portion and the opening/closing mechanism and configured to reciprocate in a main scanning direction, a contact portion that comes in contact with the opening/closing mechanism when the carriage moves while the supply flow path is in the closed state, and a detection portion that detects contact between the opening/closing mechanism and the contact portion.
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Patent Agency Ranking
公开(公告)号：US20180065372A1
公开(公告)日：2018-03-08
申请号：US15690019
申请日：2017-08-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Taro TAKEKOSHI , Shunichi HIZAWA , Seiji TOJO
CPC classification number: B41J2/16526 , B41J2/04586 , B41J2/16508 , B41J2/16511 , B41J2/16532 , B41J29/02 , B41J29/13 , B41J29/377
Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects a liquid to a medium transported along a transport path, a suction mechanism that sucks an interior of the liquid ejecting head, an atmospheric pressure detection unit that has a vent for communication with an atmosphere and that detects atmospheric pressure, and a control unit that controls operation of the suction mechanism on the basis of a value of atmospheric pressure detected by the atmospheric pressure detection unit. The atmospheric pressure detection unit is disposed at a location that is outside the transport path and that is higher than the transport path.
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公开(公告)号：US20240157704A1
公开(公告)日：2024-05-16
申请号：US18505763
申请日：2023-11-09
Applicant: SEIKO EPSON CORPORATION
Inventor： Nanami HAGA , Yuki HIRABAYASHI , Seiji TOJO
CPC classification number: B41J2/17509 , B41J2/1652 , B41J2/17596 , B41J2002/16582
Abstract: A liquid ejecting apparatus includes: a head that ejects a liquid from a nozzle; a mounting portion on which a liquid container in which the liquid is sealed is detachably mounted; a sub-tank in which the liquid supplied from the liquid container is stored; a connection channel connected to the sub-tank and the head; an opening and closing valve positioned in the connection channel; and a control portion, in which when the liquid container is replaced, the control portion closes the opening and closing valve.
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公开(公告)号：US20230382126A1
公开(公告)日：2023-11-30
申请号：US18449404
申请日：2023-08-14
Applicant: SEIKO EPSON CORPORATION
Inventor： Seiji TOJO
CPC classification number: B41J2/17596 , B41J2/17523 , B41J29/38
Abstract: A liquid ejecting apparatus includes a liquid ejecting portion having a nozzle ejecting a liquid onto a medium, a liquid storage portion that stores the liquid, a supply flow path through which the liquid storage portion communicates with the liquid ejecting portion, an opening/closing mechanism having an opening/closing portion bringing the supply flow path into an open state or a closed state and an operation portion operating the opening/closing portion, a carriage mounted with the liquid ejecting portion and the opening/closing mechanism and configured to reciprocate in a main scanning direction, a contact portion that comes in contact with the opening/closing mechanism when the carriage moves while the supply flow path is in the closed state, and a detection portion that detects contact between the opening/closing mechanism and the contact portion.
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公开(公告)号：US20230150286A1
公开(公告)日：2023-05-18
申请号：US18056176
申请日：2022-11-16
Applicant: SEIKO EPSON CORPORATION
Inventor： Seiji TOJO , Eiji MIYASHITA , Seiya SATO
IPC: B41J29/393
CPC classification number: B41J29/393
Abstract: There is provided a liquid ejecting apparatus including: a head that ejects a liquid; a supply unit that supplies a liquid to the head; a maintenance unit for maintaining the head; a selector unit that selects a unit to be opened to an atmosphere from the supply unit and the maintenance unit; and a housing that accommodates the supply unit, the maintenance unit, and the selector unit, in which the housing has an opening surface to which an exposure opening is open and a cover that closes the exposure opening, the exposure opening exposes the supply unit, the maintenance unit, and the selector unit, and when the exposure opening is viewed from a position facing the opening surface, the supply unit, the maintenance unit, and the selector unit are positioned not to overlap each other.
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公开(公告)号：US20180326731A1
公开(公告)日：2018-11-15
申请号：US15972302
申请日：2018-05-07
Applicant: SEIKO EPSON CORPORATION
Inventor： Shigenori FUKASAWA , Yasuaki HIRAI , Yuta KOMATSU , Seiji TOJO
IPC: B41J2/165
CPC classification number: B41J2/16541 , B41J2/16523 , B41J2/16547
Abstract: A liquid ejecting apparatus includes: a wiping portion which wipes a nozzle forming surface by relatively moving in a main scanning direction with respect to a recording head; and a controller which moves at least one of the recording head and the wiping member. The controller selects and performs at least one of first wiping processing for wiping the nozzle forming surface until the wiping portion is separated from the nozzle forming surface in the main scanning direction, and second wiping processing for separating the wiping portion from the nozzle forming surface in a retracting direction different from the main scanning direction after wiping the nozzle forming surface until the wiping portion comes into contact with a defined position of the nozzle forming surface.
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