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公开(公告)号：US12138915B2
公开(公告)日：2024-11-12
申请号：US18169453
申请日：2023-02-15
Applicant: SII Printek Inc.
Inventor： Kensuke Yoshida , Akihiro Itagi
IPC: B41J2/045
Abstract: There are provided a liquid jet head and so on capable of enhancing the reliability. A liquid jet head according to an embodiment of the present disclosure includes a jet section configured to jet liquid, at least one drive circuit configured to output a drive signal used to jet the liquid to the jet section, a differential input line configured to transmit data from an outside of the liquid jet head toward the drive circuit, a differential output line configured to transmit data from the drive circuit toward the outside of the liquid jet head, a coupling part which is arranged between the outside of the liquid jet head and the drive circuit, and to which the differential input line and the differential output line are individually coupled, and a detection circuit configured to perform detection of a coupling state in the coupling part using a transmission signal in at least one of the differential output line and the differential input line.
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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.
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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.
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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
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.
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公开(公告)号：US11173707B2
公开(公告)日：2021-11-16
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.
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Patent Agency Ranking
公开(公告)号：US12023927B2
公开(公告)日：2024-07-02
申请号：US17859607
申请日：2022-07-07
Applicant: SII Printek Inc.
Inventor： Kensuke Yoshida
CPC classification number: B41J2/14209 , B41J2/14201 , B41J2/04581 , B41J2002/14491 , B41J2202/18
Abstract: There is provided a drive board a manufacturing cost of which can be reduced while enhancing a liquid ejection performance. The drive board according to an embodiment of the present disclosure is a drive board which is applied to a liquid jet head, and outputs a drive signal to a jet section, and includes a first wiring layer and a second wiring layer opposed to each other along a direction perpendicular to a board surface, at least one drive device which is mounted on the first wiring layer, and is configured to generate the drive signal, a first power supply wiring line which is arranged in the first wiring layer, and is a wiring line configured to supply drive power toward the drive device, a differential line which is arranged in the first wiring layer, and is a line configured to transmit a differential signal toward the drive device, and a second power supply wiring line which is arranged in the second wiring layer, which is electrically coupled to the first power supply wiring line via a first through hole, and is opposed to a first area in the differential line. A wiring width in the second power supply wiring line is larger than a line width of the first area in the differential line.
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公开(公告)号：US20230256733A1
公开(公告)日：2023-08-17
申请号：US18169453
申请日：2023-02-15
Applicant: SII Printek Inc.
Inventor： Kensuke Yoshida , Akihiro Itagi
IPC: B41J2/045
CPC classification number: B41J2/04541 , B41J2/04586
Abstract: There are provided a liquid jet head and so on capable of enhancing the reliability. A liquid jet head according to an embodiment of the present disclosure includes a jet section configured to jet liquid, at least one drive circuit configured to output a drive signal used to jet the liquid to the jet section, a differential input line configured to transmit data from an outside of the liquid jet head toward the drive circuit, a differential output line configured to transmit data from the drive circuit toward the outside of the liquid jet head, a coupling part which is arranged between the outside of the liquid jet head and the drive circuit, and to which the differential input line and the differential output line are individually coupled, and a detection circuit configured to perform detection of a coupling state in the coupling part using a transmission signal in at least one of the differential output line and the differential input line.
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公开(公告)号：US11845272B2
公开(公告)日：2023-12-19
申请号：US17486379
申请日：2021-09-27
Applicant: SII PRINTEK INC.
Inventor： Kensuke Yoshida
CPC classification number: B41J2/04588 , B41J2/04581
Abstract: A liquid jet head and so on capable of enhancing the convenience while improving the performance are provided. The liquid jet head according to an embodiment of the present disclosure includes a jet section configured to jet liquid, at least one drive device which applies a drive signal having a predetermined drive waveform to the jet section to thereby cause the jet section to jet the liquid, and a waveform setting section configured to generate regular waveform configuration information for setting the drive waveform based on simplified waveform configuration information supplied from an outside of the liquid jet head. The waveform setting section converts the simplified waveform configuration information including at least one type of reference potential value set along a time axis into the regular waveform configuration information including a plurality of types of power supply potential values set for each of the reference potential values to thereby generate the regular waveform configuration information based on the simplified waveform configuration information.
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公开(公告)号：US11660860B2
公开(公告)日：2023-05-30
申请号：US17478181
申请日：2021-09-17
Applicant: SII PRINTEK INC.
Inventor： Kensuke Yoshida
IPC: B41J2/045
CPC classification number: B41J2/04541 , B41J2/0452 , B41J2/04518 , B41J2/04581
Abstract: A liquid jet head and so on capable of reducing both of a manufacturing cost and power consumption are provided. The liquid jet head according to an embodiment of the present disclosure is provided with a jet section and at least one drive board. The drive board is provided with a first input terminal and a second input terminal, a plurality of drive devices, a plurality of transmission lines, and a plurality of terminal resistors. The drive devices each have a first input/output section and a second input/output section. The plurality of drive devices include a first drive device and a second drive device. The plurality of transmission lines include a first transmission line, a second transmission line, and at least one third transmission line. The plurality of termination resistors include a first termination resistor, a second termination resistor, and a third termination resistor.
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公开(公告)号：US11247453B2
公开(公告)日：2022-02-15
申请号：US16801462
申请日：2020-02-26
Applicant: SII PRINTEK INC.
Inventor： Kensuke Yoshida , Toshiaki Watanabe
Abstract: There are provided a liquid ejecting head and a liquid-ejecting recording apparatus in which it is possible to improve convenience. According to an embodiment of the present disclosure, a liquid ejecting head includes an ejecting section including a plurality of nozzles for ejecting liquid, a driving circuit that drives the ejecting section based on a printing driving signal to eject the liquid from the nozzles, a power supply path connected to the driving circuit, a detection section that acquires measurement data based on a detection result of a current flowing on the power supply path, and an arithmetic operation section that performs both an inspection of a state of the ejecting section based on the measurement data obtained by the detection section and acquisition of a parameter for ejection of the liquid.
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