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公开(公告)号：US20190263137A1
公开(公告)日：2019-08-29
申请号：US16283899
申请日：2019-02-25
Applicant: SEIKO EPSON CORPORATION
Inventor： Hiroya FUKUTA , Takeshi YOSHIDA
Abstract: A printer device includes: an ink circulation flow path in which ink is circulated; a discharge head that discharges the ink supplied from the ink circulation flow path; a circulation pump and a circulation motor that circulate the ink in the ink circulation flow path; a circulation filter provided in the ink circulation flow path; and control unit that determines a blocked state of the circulation filter and performs drive control of the circulation motor in accordance with a determination result, and the control unit drives the circulation motor in a first mode until it is determined that the circulation filter is in a blocked state, and after it is determined that the circulation filter is in a blocked state, the control unit drives the circulation motor in a second mode that provides a smaller circulation rate than the first mode.
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公开(公告)号：US20220092290A1
公开(公告)日：2022-03-24
申请号：US17481453
申请日：2021-09-22
Applicant: Seiko Epson Corporation
Inventor： Takeshi YOSHIDA
Abstract: An image recognition method includes obtaining measurement data of a target object, comparing a 3D model having a plurality of feature points and the measurement data and updating importance degrees of the plurality of feature points based on differences between the 3D model and the measurement data, performing learning using the updated importance degrees, and performing object recognition for the target object based on a result of the learning.
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3.发明申请公开(公告)号：US20180093491A1
公开(公告)日：2018-04-05
申请号：US15719226
申请日：2017-09-28
Applicant: SEIKO EPSON CORPORATION
Inventor： Masato MURAYAMA , Takeshi YOSHIDA , Kaoru KOIKE , Ryoji FUJIMORI
Abstract: A liquid ejecting apparatus includes a liquid ejecting section from which liquid is ejected. A return passage has a first end connected to a supply passage at a first location and a second end connected to the supply passage at a second location. The second location is positioned closer to the liquid ejecting section than the first location. The return passage and the supply passage constitute a circulating passage. A pump can cause fluid to flow through the circulating passage. A replaceable filter unit is a portion of the return passage. A discharge passage through which the fluid is discharged to the outside is connected to the return passage. An inflow controller can suppress external fluid from entering the discharge passage.
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公开(公告)号：US20190232663A1
公开(公告)日：2019-08-01
申请号：US16260218
申请日：2019-01-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Hiroya FUKUTA , Takeshi YOSHIDA
IPC: B41J2/165
Abstract: A printer includes a head including an ink ejecting unit for ejecting ink from a nozzle, a waste liquid flow path that is a flow path of ink sucked from the nozzle, a suction unit that performs an ink suction operation of sucking the ink from the nozzle via the waste liquid flow path, and a cleaning operation of sucking cleaning liquid from the nozzle via the waste liquid flow path, and a control unit that controls the suction unit so as to vary a suction amount of the cleaning liquid depending on an elapsed time from when the ink suction operation is performed, when the cleaning operation is performed.
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公开(公告)号：US20190134984A1
公开(公告)日：2019-05-09
申请号：US16180275
申请日：2018-11-05
Applicant: SEIKO EPSON CORPORATION
Inventor： Masato MURAYAMA , Takeshi YOSHIDA
IPC: B41J2/165
Abstract: A liquid ejecting apparatus includes a liquid ejecting unit that performs printing on a target by ejecting liquid, which is supplied from a liquid supply source, from a plurality of nozzles; and a maintenance section that performs maintenance processing of causing the liquid to be discharged from the nozzles. Based on print information for performing printing on the target, in a case where printing satisfying a setting condition presumed such that a staying time of the liquid staying in a liquid path between the liquid supply source and the nozzles during printing is long is performed, a discharge amount of the liquid to be discharged during the maintenance processing that is performed before printing is set to be larger than a discharge amount of the liquid in a case where printing not satisfying the setting condition presumed such that the staying time is short is performed.
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Patent Agency Ranking
公开(公告)号：US20190077164A1
公开(公告)日：2019-03-14
申请号：US16129672
申请日：2018-09-12
Applicant: SEIKO EPSON CORPORATION
Inventor： Takeshi YOSHIDA
CPC classification number: B41J2/17596 , B41J2/04586 , B41J2/16505 , B41J2/16508 , B41J2/16523 , B41J2/16526 , B41J2/16532 , B41J2/175 , B41J2002/14403 , B41J2002/16594 , B41J2202/05
Abstract: A liquid ejecting apparatus includes a liquid ejecting unit and a pump. The liquid ejecting apparatus has a supply channel, a return channel, and a communication channel. The supply channel is designed to be able to supply the liquid from a liquid supply source to the nozzle. The return channel has ends connected to the supply channel and forms, together with the supply channel, a circulation channel. The communication channel is connected to the return channel and allows communication between an inside of the return channel and an outside. In a state in which the return channel communicates with the outside through the communication channel, the pump is driven so as to perform a return-channel replacement operation in which the liquid in the return channel is discharged to the supply channel side.
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公开(公告)号：US20190232664A1
公开(公告)日：2019-08-01
申请号：US16260187
申请日：2019-01-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Hiroya FUKUTA , Takeshi YOSHIDA
IPC: B41J2/165
CPC classification number: B41J2/16523 , B41J2/16532 , B41J2/16538 , B41J2/16552 , B41J2/1721 , B41J2/2117 , B41J2002/16573 , B41J2002/16594
Abstract: A printer includes a head including a plurality of ink ejecting units for ejecting different types of inks from nozzles, a waste liquid flow path that is a flow path of ink sucked from the nozzles, a suction unit that performs an ink suction operation of sucking the ink from the nozzles of the ink ejecting units via the waste liquid flow path, and a cleaning operation of sucking the cleaning liquid from nozzles via the waste liquid flow path, and a control unit that controls the suction unit so as to vary a suction amount of the cleaning liquid depending on the type of the ink sucked by the ink suction operation when the cleaning operation is performed.
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8.发明申请LIQUID EJECTING APPARATUS AND MAINTENANCE METHOD OF LIQUID EJECTING APPARATUS 审中-公开液体喷射装置的液体喷射和维护方法公开(公告)号：US20160009094A1
公开(公告)日：2016-01-14
申请号：US14794546
申请日：2015-07-08
Applicant: SEIKO EPSON CORPORATION
Inventor： Takayuki KAWAKAMI , Toshihiro SHINBARA , Kazuhiko HARA , Kazuyuki FUJIOKA , Takeshi YOSHIDA , Hironori SATO
IPC: B41J2/165
CPC classification number: B41J2/16552 , B41J2/16508 , B41J2/16538 , B41J2002/16555
Abstract: A liquid ejecting apparatus includes a liquid ejecting section that is capable of ejecting a first liquid from an opening of a nozzle with respect to media; and a two-fluid ejecting apparatus that is capable of ejecting at least one of a gas and a second liquid with respect to the liquid ejecting section.
Abstract translation: 液体喷射装置包括能够相对于介质从喷嘴的开口排出第一液体的液体喷射部; 以及能够相对于液体喷射部喷射气体和第二液体中的至少一种的双液体喷射装置。
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公开(公告)号：US20190126624A1
公开(公告)日：2019-05-02
申请号：US16177073
申请日：2018-10-31
Applicant: SEIKO EPSON CORPORATION
Inventor： Takeshi YOSHIDA
IPC: B41J2/165
Abstract: A liquid ejecting apparatus includes a liquid ejecting head having a nozzle that ejects liquid to an ejection medium; a maintenance mechanism having a receiving portion that receives the liquid which is discharged from the liquid ejecting head in a maintenance operation for the liquid ejecting head; and a cleaning liquid supply mechanism configured to supply cleaning liquid to the receiving portion in a cleaning operation of cleaning the receiving portion. If a time from when the maintenance operation of former one has been executed to when the maintenance operation of later one is executed is equal to or longer than a first setting time and shorter than a second setting time, after the maintenance operation of the later one is executed, the cleaning operation is executed subsequently to the maintenance operation of the later one.
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公开(公告)号：US20180250938A1
公开(公告)日：2018-09-06
申请号：US15910829
申请日：2018-03-02
Applicant: SEIKO EPSON CORPORATION
Inventor： Takayuki KAWAKAMI , Shinsuke YOKOTE , Toshihiro SHINBARA , Tsuyoshi HAYASHI , Takeshi YOSHIDA , Yuji KANAZAWA
Abstract: A liquid droplet ejecting apparatus includes a liquid droplet ejecting head that includes a plurality of nozzles from which a liquid supplied from a liquid supply source through a liquid supply path is ejected as a liquid droplet, and ejects the liquid droplet from the nozzle to a recording medium to perform a recording process, a first detecting section that detects a vibration waveform of the pressure chamber, which is vibrated when an actuator is driven to cause the pressure chamber communicating with the nozzle to vibrate, to detect a state inside the pressure chamber, and a second detecting section that reads a pattern formed on the recording medium by ejecting the liquid droplet from the nozzle to detect an ejection state of the liquid droplet.
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