公开(公告)号：US20220194092A1

公开(公告)日：2022-06-23

申请号：US17553356

申请日：2021-12-16

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

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 an electrical reliability, and enhancing the durability. The head chip according to an aspect of the present disclosure includes an actuator plate having ejection channels and non-ejection channels extending in a Z direction and arranged alternately in an X direction, and a nozzle plate which has nozzle holes respectively communicated with the ejection channels, and faces the actuator plate. The non-ejection channels are terminated at positions separated from a lower end surface of the actuator plate. The ejection channels open on a lower end surface of the actuator plate.

公开(公告)号：US20220176698A1

公开(公告)日：2022-06-09

申请号：US17542845

申请日：2021-12-06

Applicant: SII Printek Inc

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14 ,  B41J2/16

Abstract: The trouble of removing a protective film such as a poly-paraxylene film from the part not requiring the protective film is reduced. A method of manufacturing a head chip according to an aspect of the present disclosure includes a substrate preparation step of preparing an actuator plate substrate having a jet channel communicated with a nozzle hole configured to jet ink, and a non-jet channel which does not jet the ink, and a protective film formation step of forming a protective film configured to protect a common electrode formed on an inner surface of the jet channel from the ink in a state in which the jet channel is exposed and the non-jet channel is covered after the substrate preparation step.

公开(公告)号：US20220176695A1

公开(公告)日：2022-06-09

申请号：US17541566

申请日：2021-12-03

Applicant: SII Printek Inc.

Inventor： Satoshi HORIGUCHI

IPC: B41J2/14 ,  B41J2/16

Abstract: The head chip includes an actuator plate having ejection channels and non-ejection channels extending in a Y direction and arranged alternately in an X direction, an intermediate plate overlapped with the actuator plate in a Z direction, and provided with communication holes communicated with the ejection channels and through holes communicated with the non-ejection channels, and a nozzle plate overlapped with the intermediate plate in the Z direction in a state of closing the through holes, and provided with nozzle holes which are communicated with the communication holes, jet liquid contained in the ejection channels, and are formed at positions corresponding to the ejection channels. The non-ejection channels are communicated with an outside of the head chip. The through holes are each disposed at an inner side in the X direction of the inner surfaces extending in the Y direction of the non-ejection channel viewed from the Z direction.

公开(公告)号：US20220111639A1

公开(公告)日：2022-04-14

申请号：US17497108

申请日：2021-10-08

Applicant: SII PRINTEK INC.

Inventor： Kensuke YOSHIDA

IPC: B41J2/045 ,  B41J2/14

Abstract: There are provided a liquid jet head and so on capable of enhancing the convenience. The liquid jet head according to an embodiment of the present disclosure includes a jet section, a plurality of drive boards, at least one drive device, a waveform setting section, a control switch section, an external control line in which first control communication is performed, an internal control line in which second control communication is performed, and a plurality of drive control lines in which third control communication is individually performed. The waveform setting section generates second waveform configuration information for setting the drive waveform based on first waveform configuration information transmitted from the outside of the liquid jet head using the first control communication. The control switch section performs control switch between a transmission control action and a blocking control action when transmitting the second waveform configuration information, which is transmitted from the waveform setting section using the second control communication, to the drive device using the third control communication.

公开(公告)号：US20210162757A1

公开(公告)日：2021-06-03

申请号：US17105083

申请日：2020-11-25

Applicant: SII PRINTEK INC.

Inventor： Masakazu HIRATA ,  Yuzuru KUBOTA ,  Yuki YAMAMURA ,  Tomoki AI

IPC: B41J2/14

Abstract: There is provided a head chip and so on capable of achieving the reduction in power consumption and the improvement in print image quality while suppressing the manufacturing cost of the head chip. The head chip according to an embodiment of the present disclosure includes an actuator plate having a plurality of ejection grooves and a plurality of electrodes, a nozzle plate having a plurality of nozzle holes, and a cover plate having a wall part, a first through hole, and a second through hole. 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. Positions of both ends of the electrode along the extending direction of the ejection grooves are each aligned in the plurality of electrodes along a predetermined direction.

公开(公告)号：US10967636B2

公开(公告)日：2021-04-06

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：US20200269569A1

公开(公告)日：2020-08-27

申请号：US16797371

申请日：2020-02-21

Applicant: SII PRINTEK INC.

Inventor： Toshiaki WATANABE ,  Kensuke Yoshida

IPC: B41J2/045

Abstract: An embodiment of the present disclosure is a driving circuit for ejecting liquid from a plurality of nozzles in an ejecting section in a liquid ejecting head. The driving circuit includes a first signal generation section that generates a printing driving signal for ejecting the liquid from the nozzles, a second signal generation section that generates an inspection driving signal for inspecting a state of the ejecting section, and a control section that controls the first signal generation section and the second signal generation section so as to exclusively output one of the printing driving signal and the inspection driving signal to the ejecting section.

公开(公告)号：US10710366B2

公开(公告)日：2020-07-14

申请号：US16189330

申请日：2018-11-13

Applicant: SII Printek Inc.

Inventor： Masakazu Hirata ,  Kenji Takano ,  Emiko Osaka

IPC: B41J2/14 ,  B41J2/165 ,  B41J2/16 ,  B41J2/21

Abstract: Provided herein are a jet hole plate, a liquid jet head, and a liquid jet recording apparatus that can achieve a long life. A jet hole plate according to an embodiment of the present disclosure is a jet hole plate for use in a liquid jet head. The jet hole plate includes a metal substrate provided with a plurality of jet holes. In the metal substrate, an average crystal grain size in outlet edges of the jet holes is smaller than that in surrounding regions around the outlet edges.

公开(公告)号：US10688782B2

公开(公告)日：2020-06-23

申请号：US16181653

申请日：2018-11-06

Applicant: SII Printek Inc.

Inventor： Naohiro Tomita ,  Yuki Yamamura ,  Masaru Midorikawa ,  Shuji Sato ,  Shunsuke Yamazaki

IPC: B41J2/04 ,  B41J2/045 ,  B41J2/14

Abstract: There are provided a liquid jet head and a liquid jet recording device capable of enhancing the reliability. A liquid jet head according to an embodiment of the disclosure includes a liquid jet section from which liquid is jetted, an electronic control section electrically connected to the liquid jet section, a main protective member adapted to cover a periphery of the electronic control section, a connection section attached to the electronic control section and adapted to electrically connect an outside of the liquid jet head and the electronic control section to each other, and a connection section protective member configured so as to make a state transition between a protection state of covering the connection section and an exposure state of exposing the connection section.

公开(公告)号：US10589524B2

公开(公告)日：2020-03-17

申请号：US15842203

申请日：2017-12-14

Applicant: SII Printek Inc.

Inventor： Takayuki Shimizu

IPC: B41J2/045

Abstract: Reduction of the size of the droplet in 1-drop ejection is easily performed. A liquid jet head according to an example of the disclosure includes a nozzle adapted to jet a liquid, a piezoelectric actuator having a pressure chamber communicated with the nozzle and filled with the liquid, and adapted to vary a capacity of the pressure chamber, 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 filling the pressure chamber. The control section applies the pulse signal adapted to expand the capacity in the pressure chamber when jetting 1 drop of the liquid so as to include a first pulse signal having a pulse width one of equal to or shorter than an on-pulse peak, and a second pulse signal disposed with a predetermined time interval from the first pulse signal.