公开(公告)号：US10155378B2

公开(公告)日：2018-12-18

申请号：US15711799

申请日：2017-09-21

Applicant: SII Printek Inc.

Inventor： Shunji Kawamoto

IPC: B41J2/045 ,  H03K3/01 ,  H03K19/20 ,  H03K17/66 ,  H03K17/687

Abstract: An overvoltage is prevented from being applied to a circuit. A full-bridge circuit is provided with a first switch having an output terminal connected to one end of a capacitive load, and switching output to the output terminal between a power supply and a ground, a second switch having an output terminal connected to the other end of the capacitive load, and switching output to the output terminal between the power supply and the ground, a first waveform generation section adapted to output a drive waveform for driving the first switch, a second waveform generation section adapted to output a drive waveform for driving the second switch, a detection section adapted to detect voltages of the drive waveforms output by the first waveform generation section and the second waveform generation section, and a control section adapted to control the output of either of the switches based on the voltages detected by the detection 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：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.