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公开(公告)号:US20200247146A1
公开(公告)日:2020-08-06
申请号:US16822986
申请日:2020-03-18
Applicant: SEIKO EPSON CORPORATION
Inventor: Yoshihiro Kobayashi , Yusuke Mizutaki , Toshio Kumagai , Masaaki Ando , Hiroaki Kida , Kaoru Koike , Mitsuaki Yoshizawa
Abstract: An ink jet recording method includes ejecting an ultraviolet-ray curable ink of which a viscosity at 28° C. is 8 mPa·s or more from a head to a recording medium, and curing the ultraviolet-ray curable ink attached to the recording medium, wherein, in the ejecting of the ultraviolet-ray curable ink, the ultraviolet-ray curable ink is heated such that a temperature of the ejected ultraviolet-ray curable ink becomes 28° C. to 40° C., and a viscosity of the ultraviolet-ray curable ink at the temperature is 15 mPa·s or less.
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公开(公告)号:US20190366732A1
公开(公告)日:2019-12-05
申请号:US16540332
申请日:2019-08-14
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:US10421288B2
公开(公告)日:2019-09-24
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:US10160225B2
公开(公告)日:2018-12-25
申请号:US15677907
申请日:2017-08-15
Applicant: SEIKO EPSON CORPORATION
Inventor: Kaoru Koike , Ryoji Fujimori , Hiroki Matsuoka , Toshihiro Shinbara , Tsuyoshi Hayashi
Abstract: A liquid supplying device includes a first intermediate storage and a second intermediate storage that store liquid and are provided such that the liquid can be supplied from a liquid ejecting unit which ejects the liquid, a liquid supply source holding unit that holds a liquid supply source which accommodates the liquid and that can supply the liquid accommodated in the liquid supply source to the first intermediate storage and the second intermediate storage, and a pressure regulating mechanism that can regulate pressures inside the first intermediate storage and inside the second intermediate storage. In the liquid supplying device, the inside of one intermediate storage, out of the first intermediate storage and the second intermediate storage, is depressurized, and the liquid is supplied from the liquid supply source to the one intermediate storage.
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公开(公告)号:US09527296B2
公开(公告)日:2016-12-27
申请号:US14955602
申请日:2015-12-01
Applicant: SEIKO EPSON CORPORATION
Inventor: Masaaki Ando , Kaoru Koike
Abstract: A liquid circulation device includes a supply unit that forms a flow path supplying a liquid from a reservoir unit; a collection unit that forms a flow path collecting the liquid to the reservoir unit; and N number of the connection units provided respectively corresponding to N number of ejection units ejecting the liquid forming a flow path connecting the supply unit and the collection unit via the ejection units, wherein with regard to each of N number of the connection units, a connection order of the connection units with respect to the supply unit, which is counted from upstream in a flow direction of the liquid in the supply unit coincides with a connection order of the connection units with respect to the collection unit, which is counted from upstream in the flow direction of the liquid in the collection unit.
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公开(公告)号:US11007790B2
公开(公告)日:2021-05-18
申请号:US16700639
申请日:2019-12-02
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:US10059118B2
公开(公告)日:2018-08-28
申请号:US15421078
申请日:2017-01-31
Applicant: SEIKO EPSON CORPORATION
Inventor: Masahiko Sato , Ryoji Fujimori , Kaoru Koike , Shigenori Nakagawa
CPC classification number: B41J2/18 , B41J2/04581 , B41J2/14201 , B41J2/175 , B41J2/17556
Abstract: There is provided an ejecting unit for ejecting a first fluid from nozzles, including: a first connection port to flow the first fluid; a second connection port to flow a second fluid; a driving portion configured to eject the first fluid in a flow path which communicates with the first connection port and the nozzles, from the nozzles; a first chamber that communicates with the second connection port; and a second chamber that communicates with the second connection port.
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公开(公告)号:US09227419B2
公开(公告)日:2016-01-05
申请号:US14614909
申请日:2015-02-05
Applicant: SEIKO EPSON CORPORATION
Inventor: Masaaki Ando , Kaoru Koike
Abstract: A liquid circulation device includes a supply unit that forms a flow path supplying a liquid from a reservoir unit; a collection unit that forms a flow path collecting the liquid to the reservoir unit; and N number of the connection units provided respectively corresponding to N number of ejection units ejecting the liquid forming a flow path connecting the supply unit and the collection unit via the ejection units, wherein with regard to each of N number of the connection units, a connection order of the connection units with respect to the supply unit, which is counted from upstream in a flow direction of the liquid in the supply unit coincides with a connection order of the connection units with respect to the collection unit, which is counted from upstream in the flow direction of the liquid in the collection unit.
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公开(公告)号:US20150217575A1
公开(公告)日:2015-08-06
申请号:US14686499
申请日:2015-04-14
Applicant: Seiko Epson Corporation
Inventor: Toshio Kumagai , Kaoru Koike
IPC: B41J2/175
CPC classification number: B41J2/17566 , B41J2/125 , B41J2/16526 , B41J2/175 , B41J2/17509 , B41J2/17596
Abstract: A liquid ejecting apparatus includes a first passage through which liquid flows from a tank to liquid ejecting heads; and a second passage through which liquid flows from the heads to the tank. The first passage includes a third passage connecting to the tank, a fourth passage branching from the third passage at a first position to allow the third passage to communicate with a first head, and a fifth passage branching from the third passage at a second position to allow the third passage to communicate with a second head. The lengths, cross-sectional areas, and resistances of various passages are set relative to others.
Abstract translation: 液体喷射装置包括第一通道,液体通过该第一通道从罐流向液体喷射头; 以及第二通道,液体通过该第二通道从头部流向罐。 第一通道包括连接到罐的第三通道,在第一位置处从第三通道分支以允许第三通道与第一头部连通的第四通道,以及在第二位置从第三通道分支的第五通道, 允许第三通道与第二个头部通信。 各种通道的长度,横截面积和电阻相对于其他通道设定。
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公开(公告)号:US08939562B2
公开(公告)日:2015-01-27
申请号:US14184468
申请日:2014-02-19
Applicant: Seiko Epson Corporation
Inventor: Kaoru Koike , Toshio Kumagai
CPC classification number: B41J2/175 , B41J2/16505
Abstract: When filling a printing head with ink, ink in a sub-tank is circulated through a forward path port, a forward path, the printing head, a return path, a return path port, and the sub-tank by pumping ink from the forward path port side to the printing head side by a circulation pump in a state where a plurality of nozzles is sealed by bringing a contact member of a capping device into contact with a nozzle formation surface. Thereafter, sealing of the plurality of nozzles by the capping device is released while pressurizing the sub-tank by a pressure adjusting device.
Abstract translation: 当用墨水填充打印头时,副罐中的墨水通过向前通路端口,前进路径,打印头,返回路径,返回路径端口和副罐循环通过从前向泵送墨水 通过使封盖装置的接触构件与喷嘴形成面接触而在多个喷嘴被密封的状态下通过循环泵进入打印头侧。 此后,通过压力调节装置对通过封盖装置的多个喷嘴的密封被释放,同时对副罐进行加压。
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