公开(公告)号：US20190030904A1

公开(公告)日：2019-01-31

申请号：US16046886

申请日：2018-07-26

Applicant: SEIKO EPSON CORPORATION

Inventor： Takahiro KATAKURA ,  Shinichi NAKAMURA ,  Junichi SANO ,  Hirofumi SAKAI ,  Keigo SUGAI

IPC: B41J2/175

CPC classification number: B41J2/17523 ,  B41J2/14274 ,  B41J2/175 ,  B41J2/17596 ,  B41J2202/05 ,  B41J2202/12

Abstract: A liquid ejecting apparatus includes a liquid chamber that is in communication with a nozzle that ejects liquid, a volume changing device that changes volume of the liquid chamber, an inflow channel that is connected to the liquid chamber and enables the liquid to flow into the liquid chamber, a discharge channel that discharges the liquid, a first flow path resistance changing device that changes flow path resistance of the inflow channel, a liquid supply section that supplies the liquid to the inflow channel by pressurizing the liquid, and a bypass channel that enables the liquid supplied from the liquid supply section to bypass the inflow channel and to flow into the discharge channel.

公开(公告)号：US20180178533A1

公开(公告)日：2018-06-28

申请号：US15831792

申请日：2017-12-05

Applicant: Seiko Epson Corporation

Inventor： Hirofumi SAKAI ,  Shinichi NAKAMURA ,  Junichi SANO ,  Takahiro KATAKURA ,  Keigo SUGAI

IPC: B41J2/175

CPC classification number: B41J2/17596 ,  B41J2/04581 ,  B41J2/14201 ,  B41J2/175 ,  B41J2/18 ,  B41J2202/05 ,  B41J2202/12

Abstract: A liquid ejecting apparatus is provided with a liquid chamber which communicates with a nozzle for ejecting liquid; an inflow path which is connected to the liquid chamber; a liquid supply unit which supplies the liquid to the inflow path; an outflow path which is connected to the liquid chamber, and through which the liquid is caused to flow out from the liquid chamber; a moving object which causes the liquid to be ejected from the nozzle by reciprocating toward the nozzle in the liquid chamber; and an actuator which causes the moving object to reciprocate. In an ejecting state in which liquid is continuously ejected from the nozzle due to at least reciprocating of the moving object, a flow path resistance of the outflow path is larger than that of the inflow path.

公开(公告)号：US20150116404A1

公开(公告)日：2015-04-30

申请号：US14529887

申请日：2014-10-31

Applicant: SEIKO EPSON CORPORATION

Inventor： Hirofumi SAKAI ,  Mitsuhiro YAMASHITA ,  Seishin YOSHIDA

IPC: B41J2/045

CPC classification number: B41J2/04501 ,  B41J2/2117

Abstract: The controller has a field discriminating part configured to discriminate an overlap field of a light-shielding ink field and a special glossy ink field, and an ink volume controller configured to allow, in the overlap field, the ink volume of light-shielding ink to be brought lower than the ink volume of the light-shielding ink determined in accordance with the image data, irrespective of the overlap field.

Abstract translation: 控制器具有被配置为区分遮光油墨场和特殊光泽油墨区域的重叠场的场识别部分，以及油墨量控制器，被配置为允许在重叠场中将遮光油墨的油墨容积 低于根据图像数据确定的遮光油墨的油墨体积，而不管重叠场。

公开(公告)号：US20170072683A1

公开(公告)日：2017-03-16

申请号：US15261211

申请日：2016-09-09

Applicant: SEIKO EPSON CORPORATION

Inventor： Hirofumi SAKAI

IPC: B41J2/045

CPC classification number: B41J2/04535 ,  B41J2/04581 ,  B41J2/0459 ,  B41J2/2054 ,  B41J2/2128

Abstract: A droplet ejection method includes: changing the drive condition in at least one of multiple ejections so as to correct the difference between a predetermined liquid amount and the total ejection amount of the liquid ejected in the form of a droplet by driving the nozzle under a preset drive condition; and driving at least one of the nozzles under the new drive condition to redetermine the total ejection amount of liquid of when performing multiple ejections.

Abstract translation: 液滴喷射方法包括：在多个喷射中的至少一个喷射中改变驱动条件，以便通过在预设的条件下驱动喷嘴来校正以液滴形式喷射的液体的预定液体量和总喷射量之间的差异 驱动条件; 并且在新的驱动条件下驱动至少一个喷嘴以重新确定执行多次喷射时的液体的总喷射量。

公开(公告)号：US20190160810A1

公开(公告)日：2019-05-30

申请号：US16201886

申请日：2018-11-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Takahiro KATAKURA ,  Keigo SUGAI ,  Hirofumi SAKAI ,  Shinichi NAKAMURA ,  Junichi SANO

IPC: B41J2/045

Abstract: A liquid ejecting apparatus includes a plurality of nozzles, a plurality of pressure chambers, a plurality of pressure-generation-elements, a plurality of inflow channels, a first-channel-resistance-changing-section, and a control-unit. The control-unit repeats control of switching between a first state in which the control-unit controls the first-channel-resistance-changing-section to collectively increase channel resistance of the inflow channels and a second state in which the control-unit controls the first-channel-resistance-changing-section to collectively decrease the channel resistance of the inflow channels. The control-unit, with respect to a pressure-generation-element corresponding to an ejection nozzle, performs ejection control including extrusion control to reduce the volume of the pressure chamber in the first state, and with respect to a pressure-generation-element corresponding to a non-ejection nozzle, the control-unit performs non-ejection control including intake and exhaust control in which the volume of the pressure chamber is expanded in the first state and is reduced in the second state.

公开(公告)号：US20180345663A1

公开(公告)日：2018-12-06

申请号：US15991243

申请日：2018-05-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Hirofumi SAKAI ,  Takahiro KATAKURA ,  Keigo SUGAI ,  Shinichi NAKAMURA ,  Junichi SANO

IPC: B41J2/045 ,  B41J29/38

Abstract: A liquid discharging apparatus includes: a liquid compartment; a flowing-in passage that is in communication with the liquid compartment through a flowing-in opening, the liquid flowing through the flowing-in passage into the liquid compartment; a nozzle that is in communication with the liquid compartment through a communication opening; a capacity changer that causes the liquid contained in the liquid compartment to be discharged from the nozzle by causing a displacement of an inner wall surface of the liquid component and changing capacity of the liquid compartment; and a flowing-in passage resistance changer that changes capacity of the flowing-in passage to change flow resistance of the flowing-in passage. In the liquid compartment, as viewed from the flowing-in opening, the communication opening is located in front of a center-of-displacement portion, an amount of the displacement of which is largest in the inner wall surface displaced by the capacity changer.

公开(公告)号：US20130323998A1

公开(公告)日：2013-12-05

申请号：US13963340

申请日：2013-08-09

Applicant: SEIKO EPSON CORPORATION

Inventor： Hirofumi SAKAI ,  Toru SHINOHARA

IPC: H05B33/10

CPC classification number: H05B33/10 ,  B41J2/16517 ,  B41J2/1721 ,  B41J3/28 ,  B41J3/543 ,  G02F1/133516

Abstract: A pattern film formation method includes: discharging liquid from at least one first discharge head toward a first pattern film formation region on a substrate; and discharging liquid from a plurality of second discharge heads toward a second pattern film formation region that is narrower than the first pattern film formation region. A number of the second discharge heads is greater than a number of the at least one first discharge head.

Abstract translation: 图案成膜方法包括：将液体从至少一个第一排出头朝向基板上的第一图案膜形成区域排出; 并将液体从多个第二排出头朝向比第一图案成膜区域窄的第二图案膜形成区域排出。 多个第二排出头大于至少一个第一排放头的数量。

公开(公告)号：US20180281443A1

公开(公告)日：2018-10-04

申请号：US15913066

申请日：2018-03-06

Applicant: Seiko Epson Corporation

Inventor： Hirofumi SAKAI ,  Shinichi NAKAMURA ,  Junichi SANO ,  Takahiro KATAKURA ,  Keigo SUGAI

IPC: B41J2/175 ,  B41J2/18

CPC classification number: B41J2/17596 ,  B41J2/175 ,  B41J2/18

Abstract: A liquid discharge apparatus includes a liquid chamber communicating with a nozzle that discharges liquid; a capacity changer that changes a capacity of the chamber; an inflow path connected to the chamber allowing the liquid to enter the chamber; an outflow path connected to the liquid chamber allowing the liquid to exit the chamber; a first resistance changer changing a flow resistance of the inflow path; a second resistance changer changing a flow resistance of the outflow path; and a controller controlling the capacity changer, the first resistance changer, and the second resistance changer. The controller allows the nozzle to discharge the liquid by increasing the flow resistance of the inflow and outflow paths, increasing the capacity of the chamber, and then, while the flow resistance of the inflow and outflow paths remain increased, decreasing the capacity of the chamber.

公开(公告)号：US20180281409A1

公开(公告)日：2018-10-04

申请号：US15919595

申请日：2018-03-13

Applicant: Seiko Epson Corporation

Inventor： Keigo SUGAI ,  Takahiro KATAKURA ,  Hirofumi SAKAI ,  Shinichi NAKAMURA ,  Junichi SANO

IPC: B41J2/14 ,  B41J2/045 ,  H01L41/09

CPC classification number: B41J2/14233 ,  B41J2/045 ,  B41J2202/05 ,  B41J2202/12 ,  H01L41/0973

Abstract: A liquid ejecting apparatus including; a first liquid chamber that communicates with a first nozzle, a first channel, and a first outflow channel; a second liquid chamber that communicates with a second nozzle, a second channel, and a second outflow channel; a first volume changing portion that changes a volume of the first liquid chamber to eject liquid from the first nozzle; a second volume changing portion that changes a volume of the second liquid chamber to eject the liquid from the second nozzle; a first inflow channel resistance changing portion that changes a flow channel resistance of the first inflow channel, a second inflow channel resistance changing portion that changes a flow channel resistance of the second inflow channel, and an inflow channel-side common drive portion that applies drive forces to the first inflow channel resistance changing portion and the second inflow channel resistance changing portion.

公开(公告)号：US20180086094A1

公开(公告)日：2018-03-29

申请号：US15704311

申请日：2017-09-14

Applicant: Seiko Epson Corporation

Inventor： Hirofumi SAKAI ,  Keigo SUGAI ,  Takahiro KATAKURA ,  Junichi SANO ,  Shinichi NAKAMURA

IPC: B41J2/175

CPC classification number: B41J2/17596 ,  B05C5/0225 ,  B41J2/01 ,  B41J2/04588 ,  B41J2202/05

Abstract: A fluid discharging apparatus includes a storage chamber storing a fluid, a discharge port communicating with the storage chamber, a supply unit supplying the fluid to the storage chamber by pressure, a moving object moving in a first direction toward the discharge port and in a second direction away from the discharge port, a pressure changing mechanism, and a control unit controlling the moving object and the pressure changing mechanism. The control unit performs discharge processing, moving processing, and pressure control processing. In the discharge processing, the moving object moves from a closed position closing the discharge port in the first direction to discharge the fluid. In the moving processing, the moving object moves in the second direction while the fluid is discharged from the discharge port. In the pressure control processing, the pressure changing mechanism suppresses a pressure increase in storage chamber.