公开(公告)号：US20230029548A1

公开(公告)日：2023-02-02

申请号：US17873348

申请日：2022-07-26

Applicant: SII Printek Inc.

Inventor： Yosuke SHINANO

IPC: B41J2/165

Abstract: There is provided a cleaning device for a liquid jet head which can efficiently clean a jet plate attached with a guard member while preventing cleaning liquid from being leaked along an opening of the guard member. The cleaning device for the inkjet head includes a holder moving relatively to the inkjet head, wherein the holder includes a jet section for jetting the cleaning liquid toward a nozzle guard of the inkjet head, a wipe part which has a width in a width direction perpendicular to a moving direction of the holder smaller than a width of an opening of the nozzle guard, and which wipes a nozzle plate due to a movement of the holder, a first suction section disposed ahead of the jet section and the wipe part in the moving direction of the holder, and a second suction section disposed posterior to the jet section and the wipe part in the moving direction of the holder.

公开(公告)号：US20220194091A1

公开(公告)日：2022-06-23

申请号：US17552686

申请日：2021-12-16

Applicant: SII Printek Inc.

Inventor： Yuzuru Kubota

IPC: B41J2/18 ,  B41J2/14

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device each capable of ensuring sufficient ejection pressure. The head chip according to an aspect of the present disclosure is provided with an actuator plate provided with first ejection channels and second ejection channels, and a feedback plate disposed on a lower end surface of the actuator plate. The first ejection channels are each surrounded by a pair of upstream drive walls opposed to each other in an X direction. The second ejection channels are each surrounded by a pair of downstream drive walls opposed to each other in the X direction.

公开(公告)号：US20210162756A1

公开(公告)日：2021-06-03

申请号：US17105067

申请日：2020-11-25

Applicant: SII PRINTEK INC.

Inventor： Masakazu HIRATA ,  Kenji SUZUKI ,  Masanori TAMURA

IPC: B41J2/14 ,  B41J2/145

Abstract: There are provided a head chip and so on capable of improving the print image quality while suppressing the manufacturing cost. The head chip according to an embodiment of the present disclosure includes an actuator plate having a plurality of ejection grooves, a nozzle plate having a plurality of nozzle holes, and a cover plate having a first through hole, a second through hole, and a wall part. The plurality of nozzle holes includes a plurality of first nozzle holes arranged so as to be shifted toward the first through hole, and a plurality of second nozzle holes arranged so as to be shifted toward the second through hole. In a first ejection groove communicated with the first nozzle hole, a first cross-sectional area of a part communicated with the first through hole is smaller than a second cross-sectional area of a part communicated with the second through hole. In a second ejection groove communicated with the second nozzle hole, the second cross-sectional area is smaller than the first cross-sectional area. A first expansion flow channel part is formed in the vicinity of the first nozzle hole, and a second expansion flow channel part is formed in the vicinity of the second nozzle hole. A central position of the first expansion flow channel part coincides with a first central position of the first nozzle hole, or is shifted toward the first through hole. A central position of the second expansion flow channel part coincides with a second central position of the second nozzle hole, or is shifted toward the second through hole.

公开(公告)号：US20210162754A1

公开(公告)日：2021-06-03

申请号：US17102723

申请日：2020-11-24

Applicant: SII PRINTEK INC.

Inventor： Tomoki Ai ,  Yuki Yamamura ,  Masakazu Hirata ,  Kenji Suzuki

IPC: B41J2/14 ,  B41J2/155

Abstract: There are provided a head chip and so on capable of improving the print image quality. The head chip according to an embodiment of the present disclosure is provided with an actuator plate having a plurality of ejection grooves and a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves. The plurality of ejection grooves is arranged side by side so as to at least partially overlap each other along a predetermined direction. Further, the nozzle holes adjacent to each other along the predetermined direction out of the plurality of nozzle holes are arranged so as to be shifted from each other along an extending direction of the ejection grooves in the nozzle plate.

公开(公告)号：US20210114386A1

公开(公告)日：2021-04-22

申请号：US17039282

申请日：2020-09-30

Applicant: SII PRINTEK INC.

Inventor： Takanori KOYANO

IPC: B41J25/00

Abstract: An alignment of jet holes of a liquid jet head is smoothly performed. A liquid jet head according to an embodiment of the present disclosure includes a nozzle section having a jet hole for liquid, a support member configured to support the nozzle section, and a position adjustment mechanism configured to adjust a position of the jet hole with respect to a carriage. The position adjustment mechanism includes a reference member a position of which with respect to the carriage is fixable, a position adjustment member which is coupled to the support member, and is configured to push the reference member to change a relative distance with respect to the reference member to thereby displace the support member on the carriage, and an intermediary member intervening between the reference member and the position adjustment member. The intermediary member is attached to either one of the reference member and the position adjustment member to form a first pressure-receiving surface facing to a displacement direction of the support member, and the other of the reference member and the position adjustment member has contact with the first pressure-receiving surface.

公开(公告)号：US20200180311A1

公开(公告)日：2020-06-11

申请号：US16698139

申请日：2019-11-27

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14 ,  B41J2/16 ,  B41J2/175 ,  B41J2/18

Abstract: A head chip capable of suppressing the degradation of the reliability, and a liquid jet head and a liquid jet recording device using the head chip are provided. The head chip includes an actuator plate having a plurality of ejection channels respectively communicated with nozzle holes and electrodes disposed on inner walls of the respective ejection channels, a bonded plate to be bonded to the actuator plate, and having a liquid contact surface which liquid entered the ejection channels has contact with, an adhesive layer disposed between the bonded plate and the actuator plate, and adapted to bond the bonded plate and the actuator plate to each other, and a protective film adapted to cover continuously from inner walls of the respective ejection channels to at least a part of the liquid contact surface via an end surface of the adhesive layer exposed on the ejection channel side.

公开(公告)号：US20200147967A1

公开(公告)日：2020-05-14

申请号：US16675608

申请日：2019-11-06

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA ,  Yuji NAKAMURA ,  Yuki YAMAMURA ,  Mizuki KUDO

IPC: B41J2/16 ,  B41J2/14 ,  B41J2/165

Abstract: A liquid jet head chip capable of exerting a stable ejection performance is provided. The liquid jet head chip is provided with an actuator plate and an electrode. The actuator plate has an obverse surface, a reverse surface, and two or more ejection channels which penetrate the actuator plate in a thickness direction from the obverse surface toward the reverse surface, which are disposed so as to be adjacent to each other at intervals in a first direction perpendicular to the thickness direction, and which are disposed so as to extend in a second direction perpendicular to both of the thickness direction and the first direction. The electrode is disposed on an inner surface of the ejection channel, and includes a first electrode part covering the inner surface of the ejection channel continuously from the obverse surface toward the reverse surface, and a second electrode part covering the inner surface of the ejection channel continuously from the reverse surface toward the obverse surface, and overlapping at least a part of the first electrode part.

公开(公告)号：US20200147959A1

公开(公告)日：2020-05-14

申请号：US16675970

申请日：2019-11-06

Applicant: SII Printek Inc.

Inventor： Yuzuru KUBOTA ,  Yuji NAKAMURA ,  Satoshi HORIGUCHI

IPC: B41J2/14

Abstract: A liquid jet head chip capable of exerting an excellent ejection performance while having a compact configuration is provided. The liquid jet head chip is provided with an actuator plate, a common electrode, a common electrode pad for external connection, a cover plate, and a sealing plate. The actuator plate has an obverse surface, a reverse surface, and an ejection channel penetrating in a thickness direction and extending in a first direction perpendicular to the thickness direction. The common electrode is disposed on an inner surface of the ejection channel. The common electrode pad is disposed in an end part region in the first direction out of the reverse surface, and is coupled to the common electrode. The cover plate is disposed so as to be opposed to the obverse surface of the actuator plate, and has a liquid flow hole opposed to the ejection channel. The sealing plate is disposed so as to be opposed to a channel formation region other than the end part region out of the reverse surface of the actuator plate, and closes the ejection channel.

公开(公告)号：US10543681B2

公开(公告)日：2020-01-28

申请号：US16043722

申请日：2018-07-24

Applicant: SII Printek Inc.

Inventor： Shunji Kawamoto

IPC: B41J2/45 ,  B41J2/045

Abstract: An object of the invention is to provide a liquid jet head and a liquid jet device each capable of improving the print quality even in the case in which an error occurs in the print data. The liquid jet head includes a receiving section adapted to receive print data, a discriminant section adapted to discriminate whether or not the print data received is non-defective, and a control section adapted to hold the print data in a case in which the print data is non-defective, or perform printing based on the print data held currently without holding the print data received in a case in which the print data received is defective.

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.