公开(公告)号：US20180222189A1

公开(公告)日：2018-08-09

申请号：US15883919

申请日：2018-01-30

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14 ,  B41J2/145 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/14201 ,  B41J2/14209 ,  B41J2/145 ,  B41J2/1609 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2002/14419 ,  B41J2002/14491 ,  B41J2202/12 ,  B41J2202/18 ,  H01L41/0475 ,  H01L41/0973 ,  H01L41/1876 ,  H01L41/29 ,  H01L41/332 ,  H01L41/338

Abstract: According to an embodiment, a liquid ejecting head chip includes an actuator plate and an in-channel electrode. In the actuator plate, a plurality of channels are arranged at a distance in an X-direction. Each of the channels includes an extension portion and a raise-and-cut portion. The extension portion extends in a Z-direction. The raise-and-cut portion continues from the extension portion toward one side of the Z-direction and has a groove depth which is gradually reduced toward the one side of the Z-direction. The in-channel electrode is formed on an inner surface of each of the channels, with a plating film.

公开(公告)号：US20180178515A1

公开(公告)日：2018-06-28

申请号：US15855138

申请日：2017-12-27

Applicant: SII Printek Inc.

Inventor： Daiki IROKAWA

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2/04516 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/14209 ,  B41J2002/14338 ,  B41J2202/05

Abstract: There are provided a liquid jet head and a liquid jet recording device each capable of appropriately cutting off the liquid column formed immediately after being jetted from the jet hole to prevent the satellite droplet from generating, and further achieving easier maintenance of the jet hole part. The liquid jet head includes a drive actuator, a jet hole plate, and a flow channel operating actuator. The drive actuator applies a pressure variation to a liquid filled therein. The jet hole plate is disposed on a downstream side of the drive actuator and adapted to jet the liquid having flown out from the drive actuator from the jet hole to the outside of the drive actuator. The flow channel operating actuator is disposed between the drive actuator and the jet hole plate, provided with a communication section adapted to communicate the drive actuator and the jet hole with each other, and has a configuration capable of performing a displacing operation on at least a part of the peripheral edge part of the communication section.

公开(公告)号：US20180162125A1

公开(公告)日：2018-06-14

申请号：US15838854

申请日：2017-12-12

Applicant: SII Printek Inc.

Inventor： Takayuki SHIMIZU ,  Toshiaki WATANABE

IPC: B41J2/045

CPC classification number: B41J2/04588 ,  B41J2/04535 ,  B41J2/04581 ,  B41J2/04593 ,  B41J2/14201

Abstract: An ejection volume of a liquid can more finely be adjusted without lowering the ejection speed. The liquid jet head includes a plurality of nozzles adapted to jet the liquid, a piezoelectric actuator having a plurality of pressure chambers corresponding respectively to the nozzles and filled with the liquid, and adapted to vary a capacity of each of the pressure chambers, and a control section adapted to apply a pulse signal to the piezoelectric actuator to thereby expand and contract the capacity of the pressure chamber so as to jet the liquid with which the pressure chamber is filled. The control section generates a drive waveform including a plurality of the pulse signals adapted to expand the capacity of the pressure chamber, and sets a crest value of either of the pulse signals other than the pulse signal applied last to a different value from a crest value of another of the pulse signals in the drive waveform.

公开(公告)号：US09908339B2

公开(公告)日：2018-03-06

申请号：US15273763

申请日：2016-09-23

Applicant: SII Printek Inc.

Inventor： Daiki Irokawa

IPC: B41J2/19 ,  B41J2/14

CPC classification number: B41J2/19 ,  B41J2/1433 ,  B41J2202/12

Abstract: A liquid jet head includes an actuator plate having opposite surfaces with ejection grooves arranged on one surface and a return path arranged on the other surface. A spacer plate has one surface on which the actuator plate is positioned and has a side flow path communicating with the ejection grooves. An air bubble retention suppression unit is provided on the spacer plate and suppresses retention of air bubbles in the side flow path.

公开(公告)号：US20170341387A1

公开(公告)日：2017-11-30

申请号：US15591458

申请日：2017-05-10

Applicant: SII Printek Inc.

Inventor： Yuichiro HAMANO ,  Yutaka HONGO

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/14201 ,  B41J2/14209 ,  B41J2002/14362 ,  B41J2002/14419 ,  B41J2002/14491 ,  B41J2202/08 ,  B41J2202/16

Abstract: A liquid jet head includes: a nozzle plate including a nozzle array, the nozzle array including a plurality of nozzle holes each extending in a Z direction, the nozzle holes being arranged side by side in an X direction; a head chip disposed in a +Z direction with respect to the nozzle plate and including ejection channels communicating with the respective nozzle holes; a manifold disposed in a +Y direction with respect to the head chip, the manifold being configured to support the head chip by a face facing a −Y direction and including an ink flow path communicating with the ejection channels; and a drive board supported on the face facing the −Y direction of the manifold and electrically connected to the head chip.

公开(公告)号：US20170341386A1

公开(公告)日：2017-11-30

申请号：US15591442

申请日：2017-05-10

Applicant: SII Printek Inc.

Inventor： Yuichiro HAMANO ,  Yutaka HONGO

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/14201 ,  B41J2/14209 ,  B41J2002/14362 ,  B41J2002/14419 ,  B41J2002/14491 ,  B41J2202/08

Abstract: A liquid jet head includes: a head chip including a channel to be filled with ink; a manifold that supports the head chip and includes an ink flow path communicating with the ejection channel; and a heater and a drive board that are supported on the manifold and heat ink inside the ink flow path. The ink flow path extends in a meandering manner.

公开(公告)号：US20170305176A1

公开(公告)日：2017-10-26

申请号：US15479591

申请日：2017-04-18

Applicant: SII Printek Inc.

Inventor： Yuichiro HAMANO

IPC: B41J25/00

CPC classification number: B41J25/006 ,  B41J25/001 ,  B41J25/34

Abstract: A carriage includes: a base plate; a liquid jet head including a support plate attached to the base plate; a first engagement portion formed on one end in a Y direction of the support plate; a fixing tool for positioning and fixing the support plate with respect to the base plate, the fixing tool being fixed to the base plate slidably in an X direction by screws and engaged with the first engagement portion; and a flat spring portion that presses the fixing tool toward the base plate. The fixing tool allows movement in the Y direction of the first engagement portion with respect to the fixing tool, and restricts movement in the X direction of the first engagement portion and movement in a thickness direction of the base plate of the first engagement portion with respect to the fixing tool.

公开(公告)号：US20170266976A1

公开(公告)日：2017-09-21

申请号：US15460766

申请日：2017-03-16

Applicant: SII Printek Inc.

Inventor： Daiki IROKAWA

IPC: B41J2/165

Abstract: A maintenance method of a liquid ejection printing device includes: forming a lump of trapped liquid in a nozzle plate to cover a nozzle hole and a surrounding of the nozzle hole with ink while a printing operation on a printing medium is performed and the liquid is not ejected; and suctioning the lump of trapped liquid into an ejection channel after the forming of the lump of trapped liquid.

公开(公告)号：US20170173956A1

公开(公告)日：2017-06-22

申请号：US15380306

申请日：2016-12-15

Applicant: SII Printek Inc.

Inventor： Daichi NISHIKAWA

IPC: B41J2/14

CPC classification number: B41J2/14209 ,  B41J2/14072 ,  B41J2/14201 ,  B41J2002/14491 ,  B41J2202/18

Abstract: The present invention relates to a liquid jet device comprising an actuator plate on which injection channels and non-injection channels are arranged side by side, a cover plate laminated on a surface of the actuator plate and including slits communicating into the injection channels, common electrodes and individual electrodes formed on inner surfaces of the injection channels and the non-injection channels, and common wires and individual wires formed on surfaces of bank portions of the actuator plate, and common pad portions and individual pad portions connected to the common wires and the individual wires, and connected to flexible boards in protruding end portions are formed in a portion of a back surface of the cover plate outside the slits.

公开(公告)号：US20170165987A1

公开(公告)日：2017-06-15

申请号：US15353193

申请日：2016-11-16

Applicant: SII Printek Inc.

Inventor： Yuichiro HAMANO

IPC: B41J25/00 ,  B41J2/01

CPC classification number: B41J25/006 ,  B41J2/01 ,  B41J2/14024 ,  B41J2/145 ,  B41J2/17509 ,  B41J2/1752 ,  B41J25/001 ,  B41J25/003 ,  B41J29/04 ,  B41J29/06 ,  B41J2202/20

Abstract: A carriage includes a base plate, a liquid jet head which includes a support plate attached to the base plate, a first engagement portion which is formed on one end in a Y direction of the support plate, and a fixing tool for positioning the support plate with respect to the base plate, the fixing tool being slidable in an X direction with respect to the base plate and engaged with the first engagement portion. The fixing tool allows movement in the Y direction of the first engagement portion with respect to the fixing tool, and restricts movement in the X direction of the first engagement portion and movement in the thickness direction of the base plate of the first engagement portion with respect to the fixing tool.