公开(公告)号：US20200298557A1

公开(公告)日：2020-09-24

申请号：US16801462

申请日：2020-02-26

Applicant: SII PRINTEK INC.

Inventor： Kensuke YOSHIDA ,  Toshiaki WATANABE

IPC: B41J2/045

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.

公开(公告)号：US20240173965A1

公开(公告)日：2024-05-30

申请号：US18386523

申请日：2023-11-02

Applicant: SII Printek Inc.

Inventor： Kensuke YOSHIDA ,  Toshiaki WATANABE

IPC: B41J2/045

CPC classification number: B41J2/04541 ,  B41J2002/14491

Abstract: There are provided a drive device and so on capable of improving the reliability. A drive device according to an embodiment of the present disclosure is a drive device configured to generate a drive signal to be applied to a liquid jet head having a plurality of nozzles, the drive device including a plurality of drive terminals which is arranged along a longitudinal direction of the drive device, and which is configured to individually output the drive signal for jetting liquid from the nozzles, and at least one dummy terminal configured to electrically be coupled to a predetermined constant potential. The plurality of drive terminals is divided into a plurality of drive terminal groups arranged along the longitudinal direction, and the dummy terminal is arranged at at least one of intervals between the plurality of drive terminal groups.

公开(公告)号：US20180162125A1

公开(公告)日：2018-06-14

申请号：US15838854

申请日：2017-12-12

Applicant: SII Printek Inc.

Inventor： Takayuki SHIMIZU ,  Toshiaki WATANABE

IPC: B41J2/045

CPC classification number: B41J2/04588 ,  B41J2/04535 ,  B41J2/04581 ,  B41J2/04593 ,  B41J2/14201

Abstract: An ejection volume of a liquid can more finely be adjusted without lowering the ejection speed. The liquid jet head includes a plurality of nozzles adapted to jet the liquid, a piezoelectric actuator having a plurality of pressure chambers corresponding respectively to the nozzles and filled with the liquid, and adapted to vary a capacity of each of the pressure chambers, 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 with which the pressure chamber is filled. The control section generates a drive waveform including a plurality of the pulse signals adapted to expand the capacity of the pressure chamber, and sets a crest value of either of the pulse signals other than the pulse signal applied last to a different value from a crest value of another of the pulse signals in the drive waveform.

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：US20130265354A1

公开(公告)日：2013-10-10

申请号：US13846543

申请日：2013-03-18

Applicant: SII PRINTEK INC.

Inventor： Toshiaki WATANABE

IPC: B41J2/045

CPC classification number: B41J2/04588 ,  B41J2/04541 ,  B41J2/04581

Abstract: A device includes a drive portion for driving a pressure generating element, and controlling a state of driving the element. The drive portion includes: a first drive section for causing a first current to flow to drive the element; and a second drive section for causing a second current smaller than the first current to flow to drive the element. The state of driving the element includes a first state and a second state. The second drive section causes the second current in a direction in which the element is switched from the first state to the second state to flow at a timing that is faster by a predetermined time determined in advance with respect to a timing at which the first drive section causes the first current for switching the state of driving the element from the first state to the second state to flow.

Abstract translation: 一种装置包括用于驱动压力产生元件的驱动部分，并控制驱动元件的状态。 驱动部分包括：第一驱动部分，用于使第一电流流动以驱动元件; 以及第二驱动部分，用于使小于第一电流的第二电流流动以驱动元件。 驱动元件的状态包括第一状态和第二状态。 第二驱动部使得第一电流在元件从第一状态切换到第二状态的方向上以相对于第一驱动的定时预先确定的预定时间更快的定时流动 所述第一电流使得将所述元件的驱动状态从所述第一状态切换到所述第二状态的所述第一电流流动。