公开(公告)号：US20190143683A1

公开(公告)日：2019-05-16

申请号：US16186983

申请日：2018-11-12

Applicant: SII Printek Inc.

Inventor： Daichi NISHIKAWA ,  Misaki KOBAYASHI ,  Tomoki KAMEYAMA

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/14072 ,  B41J2/14209 ,  B41J2002/14491

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of enhancing the reliability. The head chip according to an embodiment of the disclosure is a head chip adapted to jet liquid including an actuator plate having a plurality of ejection grooves and a plurality of non-ejection grooves alternately arranged in parallel to each other along a first direction and each extending in a second direction crossing the first direction, and a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves, and to be bonded to the actuator plate. The non-ejection grooves each partially open in a bonding surface of the actuator plate with the nozzle plate.

公开(公告)号：US20190143696A1

公开(公告)日：2019-05-16

申请号：US16185891

申请日：2018-11-09

Applicant: SII Printek Inc.

Inventor： Yuki YAMAMURA ,  Daichi NISHIKAWA ,  Tomoki KAMEYAMA ,  Misaki KOBAYASHI

IPC: B41J2/165 ,  B41J2/14

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of improving the ejection stability. The head chip according to an embodiment of the disclosure includes an actuator plate having a plurality of ejection grooves filled with liquid, and a plurality of non-ejection grooves not filled with the liquid, a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves while not being communicated with the plurality of non-ejection grooves, a cover plate having a plurality of through holes adapted to respectively fill the plurality of ejection grooves with the liquid, and adapted to close the plurality of non-ejection grooves, and a communication mechanism adapted to communicate an outside of the head chip and the plurality of non-ejection grooves with each other via an opening part exposed to the outside of the head chip.

公开(公告)号：US20190143697A1

公开(公告)日：2019-05-16

申请号：US16185945

申请日：2018-11-09

Applicant: SII Printek Inc.

Inventor： Tomoki KAMEYAMA ,  Yuki YAMAMURA ,  Daichi NISHIKAWA ,  Misaki KOBAYASHI

IPC: B41J2/165 ,  B41J2/14

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of enhancing the reliability. The head chip according to an embodiment of the disclosure includes an actuator plate having a plurality of ejection grooves arranged side by side along a first direction, and first common electrodes respectively formed in the ejection grooves, a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves, and a cover plate adapted to cover the actuator plate. The cover plate has a wall part adapted to cover the plurality of ejection grooves. A plurality of common interconnections electrically connected to the first common electrodes is laid around on a surface on an opposite side to the actuator plate in the wall part of the cover plate, and one of a single second common electrode and a plurality of second common electrodes on the surface on the opposite side of the wall part is formed by electrically connecting at least two or more of the common interconnections to each other on the surface on the opposite side of the wall part.

公开(公告)号：US20190143689A1

公开(公告)日：2019-05-16

申请号：US16185914

申请日：2018-11-09

Applicant: SII Printek Inc.

Inventor： Tomoki KAMEYAMA ,  Yuki YAMAMURA ,  Daichi NISHIKAWA ,  Misaki KOBAYASHI

IPC: B41J2/14 ,  B41J2/165

Abstract: A head chip, a liquid jet head, and a liquid jet recording device capable of achieving the miniaturization while enhancing the reliability are provided. The head chip according to an embodiment of the disclosure includes an actuator plate having a plurality of ejection grooves arranged side by side in a first direction, a plurality of non-ejection grooves arranged side by side along the first direction, and individual electrodes respectively formed in the plurality of non-ejection grooves, a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves, and a cover plate adapted to cover the actuator plate. The cover plate has interconnection connecting sections respectively disposed in end part areas along a second direction perpendicular to the first direction, and adapted to electrically connect a plurality of individual interconnections electrically connected to the individual electrodes to an interconnection board outside the head chip. The plurality of individual interconnections in the interconnection connecting section has a bend part extending in an oblique direction crossing the second direction so as to circumvent a predetermined obstacle. A connection area between the plurality of individual interconnections and the interconnection board in the interconnection connecting section is an area including the bend part.

公开(公告)号：US20190143682A1

公开(公告)日：2019-05-16

申请号：US16186957

申请日：2018-11-12

Applicant: SII Printek Inc.

Inventor： Daichi NISHIKAWA ,  Misaki KOBAYASHI ,  Tomoki KAMEYAMA ,  Hitoshi NAKAYAMA

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/14072 ,  B41J2/14209 ,  B41J2002/14491

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of enhancing the reliability. The head chip according to an embodiment of the disclosure is a head chip adapted to jet liquid including an actuator plate having a plurality of ejection grooves arranged side by side along a first direction, and extending in a second direction crossing the first direction, a plurality of common electrodes formed on respective inner surfaces of the plurality of ejection grooves, and a commonalization interconnection adapted to electrically connect the plurality of common electrodes to each other, and a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves.

公开(公告)号：US20190143680A1

公开(公告)日：2019-05-16

申请号：US16185857

申请日：2018-11-09

Applicant: SII Printek Inc.

Inventor： Yuki YAMAMURA ,  Daichi NISHIKAWA ,  Tomoki KAMEYAMA ,  Misaki KOBAYASHI

IPC: B41J2/14

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of improving the ejection stability. The head chip according to an embodiment of the disclosure includes an actuator plate having a plurality of ejection grooves each filled with liquid, a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves, and a cover plate having a through hole through which the liquid flows into and/or from the ejection groove, and a wall part adapted to cover the ejection groove. A flow channel of the liquid in a part adapted to communicate the through hole and the ejection groove with each other includes a principal flow channel section, and an expanded flow channel section provided to the wall part, and adapted to increase a cross-sectional area of the flow channel.