公开(公告)号：US20250100285A1

公开(公告)日：2025-03-27

申请号：US18887802

申请日：2024-09-17

Applicant: SII Printek Inc.

Inventor： Yosuke SHINANO

IPC: B41J2/165

Abstract: An alignment with a liquid jet head can easily be achieved, and surfaces of a jet plate and a guard member and an inside of an opening part of the guard member can be cleaned without injuring the jet plate even when side surfaces of the liquid jet head are not exposed, and a part of the jet plate is not exposed by the guard member. A cleaning device for an inkjet head includes a holder, and the holder includes a jet section which jets a cleaning liquid toward at least one of a nozzle plate and a nozzle guard, a contact part which makes contact with a surface of the nozzle guard provided with the opening part, and a protruding part which is inserted into the opening part in a non-contact state with the nozzle plate, and which guides the holder along a longitudinal direction of the opening part.

公开(公告)号：US20240198674A1

公开(公告)日：2024-06-20

申请号：US18536714

申请日：2023-12-12

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/1623 ,  B41J2002/14491

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of effectively transferring the elastic energy to the ink in the ejection channel to obtain a desired ejection performance are provided. The head chip according to an aspect of the present disclosure includes an actuator plate in which jet channels and non-jet channels are alternately arranged, a side-surface common electrode formed on inner side surfaces opposed to each other in a second direction out of inner surfaces of the jet channel, a bottom-surface common electrode formed on a bottom surface facing to a first side in a thickness direction out of the inner surfaces of the jet channel, a first individual electrode which is formed on inner side surfaces opposed to each other in the second direction out of inner surfaces of the non-jet channel, and which is configured to generate a potential difference from the side-surface common electrode, and a second individual electrode which is disposed on an opposite surface facing to a second side in the thickness direction out of the actuator plate, and which is configured to generate a potential difference from the bottom-surface common electrode.

公开(公告)号：US20240198669A1

公开(公告)日：2024-06-20

申请号：US18536983

申请日：2023-12-12

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14

CPC classification number: B41J2/14201

Abstract: A head chip, a liquid jet head, and a liquid jet recording device which effectively transfer elastic energy to ink in a pressure chamber to increase pressure to be generated in the pressure chamber are provided. The head chip according to an aspect of the present disclosure includes an actuator plate provided with a pressure chamber in which a liquid is contained, a jet hole plate which has a jet hole communicated with the pressure chamber, and which is overlapped on the actuator plate in a thickness direction of the actuator plate, and a drive electrode which is configured to generate an electric field in the actuator plate to thereby deform the actuator plate in the thickness direction and a crossing direction crossing the thickness direction to expand or contract a volume of the pressure chamber.

公开(公告)号：US20240190130A1

公开(公告)日：2024-06-13

申请号：US18528166

申请日：2023-12-04

Applicant: SII Printek Inc.

Inventor： Takanori KOYANO ,  Daichi Nishikawa ,  Yuzuru Kubota

IPC: B41J2/16 ,  B41J2/14

CPC classification number: B41J2/1621 ,  B41J2/1433 ,  B41J2002/14419

Abstract: There are provided a head chip, a liquid jet head, a liquid jet recording device, and a method of manufacturing the head chip each capable of achieving a reduction in size in a direction perpendicular to the ejection direction while ensuring the desired ejection performance. The head chip according to an aspect of the present disclosure includes a first ejection section, a jet hole plate arranged at a first side in a first direction of the first ejection section, a return plate which has a plurality of first communication channels configured to individually communicate a plurality of first jet channels and a plurality of first jet holes with each other, and which is arranged between the first ejection section and the jet hole plate in the first direction, and a flow channel plate which has a plurality of first connecting channels individually communicated with the plurality of first communication channels to constitute first return channels together with the corresponding first communication channels, and a manifold communicated in a lump with the plurality of first connecting channels, and which is arranged at a second side in the third direction of the first ejection section.

公开(公告)号：US20240173964A1

公开(公告)日：2024-05-30

申请号：US18386336

申请日：2023-11-02

Applicant: SII Printek Inc.

Inventor： Yasuhito Sekiya ,  Kensuke Yoshida ,  Toshiaki Watanabe ,  Shunji Kawamoto

IPC: B41J2/045

CPC classification number: B41J2/04541 ,  B41J2002/14491

Abstract: A drive board and so on capable of improving a printing quality are provided. The drive board according to an embodiment of the present disclosure is a board configured to output a drive signal to be applied to a liquid jet head having a plurality of nozzles, including at least one drive device which is mounted on a board surface, and which is configured to generate the drive signal configured to jet a liquid from the nozzles, and at least one constant-potential wiring line which extends along a longitudinal direction of the drive device in a mounting area of the drive device, and to which a predetermined constant potential is applied. The drive device includes a plurality of output terminals which is arranged at respective positions different from each other along the longitudinal direction, and which is configured to individually output the drive signal, and constant-potential terminals at three or more places which are arranged along the longitudinal direction, and which are electrically coupled to the constant-potential wiring line to which the same constant potential is applied.

公开(公告)号：US20230278333A1

公开(公告)日：2023-09-07

申请号：US18173326

申请日：2023-02-23

Applicant: SII Printek Inc.

Inventor： Akihiro ITAGI ,  Yukihiro Saga

IPC: B41J2/045

CPC classification number: B41J2/04541 ,  B41J2/04581

Abstract: There are provided a drive board and so on capable of achieving reduction in size. A drive board according to an embodiment of the present disclosure is a board configured to output a drive signal to be applied to a liquid jet head having a plurality of nozzles, including a plurality of drive devices configured to generate the drive signal for jetting liquid from the nozzles. The plurality of nozzles is separated into a plurality of nozzle groups, and the plurality of drive devices is each configured to generate the drive signal to be applied to corresponding one or more of the nozzle groups. The plurality of drive devices and the plurality of nozzle groups are electrically coupled to each other, and the plurality of drive devices are arranged side by side along a predetermined direction.

公开(公告)号：US20230191784A1

公开(公告)日：2023-06-22

申请号：US18082156

申请日：2022-12-15

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2002/14491

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of achieving a reduction in size and an increase in nozzle density are provided. The head chip according to an aspect of the present disclosure includes a flow channel member having a flow channel formation area including a flow channel through which liquid flows, and a pressure chamber which is communicated with the flow channel, and in which the liquid is contained, an actuator plate which is stacked on the flow channel member in a state of being opposed to the pressure chamber in a first direction, a drive electrode which is formed on a surface facing to the first direction in the actuator plate, and which is configured to deform the actuator plate in the first direction so as to change a volume of the pressure chamber, and a pad which is formed on a pad formation surface, and which is coupled to the drive electrode, and on which external wiring is mounted, wherein the pad formation surface is an area overlapping the flow channel formation area when viewed from the first direction, and the pad formation surface is disposed so as to face to an opposite side in the first direction to the flow channel member.

公开(公告)号：US20230191781A1

公开(公告)日：2023-06-22

申请号：US18082257

申请日：2022-12-15

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14 ,  B41J2/045

CPC classification number: B41J2/14032 ,  B41J2/14072 ,  B41J2/04585

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of increasing pressure generated while achieving power saving are provided. The head chip according to an aspect of the present disclosure includes a flow channel member having a pressure chamber containing liquid, an actuator plate which is stacked on the flow channel member in a state of being opposed to the pressure chamber in a first direction, a drive electrode which is formed on a surface facing to the first direction in the actuator plate, and which is configured to deform the actuator plate in the first direction to change a volume of the pressure chamber, and a non-drive member which is stacked at an opposite side to the flow channel member across the actuator plate in the first direction, and which is configured to limit a displacement of the actuator plate toward an opposite side to the flow channel member in the first direction.

公开(公告)号：US11654676B2

公开(公告)日：2023-05-23

申请号：US17497108

申请日：2021-10-08

Applicant: SII PRINTEK INC.

Inventor： Kensuke Yoshida

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04541 ,  B41J2/04588 ,  B41J2/14233

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：US20230117809A1

公开(公告)日：2023-04-20

申请号：US17964416

申请日：2022-10-12

Applicant: SII Printek Inc.

Inventor： Tooru MINE

IPC: B41J2/14 ,  B41J2/16

Abstract: A head chip prevented from deteriorating in printing quality is provided. The head chip is provided with an intermediate plate which has a plurality of columns of communication hole groups for each channel column, the communication hole group having communication holes individually communicated with ejection channels of an actuator plate and arranged in a line in an X direction. The communication holes adjacent to each other in the X direction are arranged so as to be shifted in a Y direction from each other. The intermediate plate is provided with a non-penetrating groove closed by a nozzle plate, and a penetrating hole communicated with the non-penetrating groove, and communicated with an outside of the head chip through a non-ejection channel. A part of the non-penetrating groove is located in an inter-communication hole region. A minimum gap in the X direction between an opening edge of the communication hole and the non-penetrating groove in the inter-communication hole region is larger than a minimum gap in the X direction between the opening edge of the communication hole and the non-ejection channel.