公开(公告)号：US20230382110A1

公开(公告)日：2023-11-30

申请号：US18323836

申请日：2023-05-25

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Atsushi MAEDA ,  Tsubasa HORIE

IPC: B41J2/14

CPC classification number: B41J2/14201

Abstract: A printing apparatus includes a first digital synthesizer configured to generate a first basic analog synthesis signal by synthesizing n (n is a natural number greater than or equal to 2) pieces of digital data, which indicating driving waveforms used to drive an energy generating element to cause a nozzle to eject liquid, and converting the same an analog signal, the n being a natural number greater than or equal to 2, an integrated signal synthesizer configured to generate an integrated analog signal by synthesizing the first basic analog synthesis signal and one or more analog waveform signals, and a separator configured to separate one of a driving waveform signal indicated by one of the n pieces of digital data and driving waveform signals indicated by the one or more analog waveform signals from the integrated analog signal.

公开(公告)号：US20230364910A1

公开(公告)日：2023-11-16

申请号：US18316423

申请日：2023-05-12

Applicant: SEIKO EPSON CORPORATION

Inventor： Shinichi YOTSUYA ,  Masahiro FUJII ,  Koji KITAHARA

IPC: B41J2/16 ,  B41J2/14

CPC classification number: B41J2/161 ,  B41J2/14201 ,  B41J2/1629 ,  B41J2/1643 ,  B41J2002/14306

Abstract: A single crystal silicon substrate at least a part of which constitutes a flow path for liquid includes a through-hole constituting a part of the flow path and extending through the single crystal silicon substrate in a direction intersecting a substrate surface of the single crystal silicon substrate. The through-hole is formed by metal-assisted chemical etching, and includes a striped portion in which at least one of a concave portion or a convex portion along a direction in which the liquid flows extends.

公开(公告)号：US11807009B2

公开(公告)日：2023-11-07

申请号：US17393817

申请日：2021-08-04

Applicant: Konica Minolta, Inc.

Inventor： Kodai Kiriishi

IPC: B41J2/165 ,  B41J2/17 ,  B41J2/14 ,  B41J25/00

CPC classification number: B41J2/16535 ,  B41J2/16523 ,  B41J2/16538 ,  B41J2/16588 ,  B41J2/1721 ,  B41J2/14201 ,  B41J2002/16564 ,  B41J2025/008

Abstract: Provided is a maintenance device that performs maintenance of a recording head with a nozzle face on which an opening of a nozzle for ink discharge is provided. The maintenance device includes a scraper that scrapes ink that adheres to the nozzle face, and an ink receiver that receives ejected ink that is ejected through the nozzle and scraped ink that is scraped off by the scraper. The ink receiver includes a first face and a second face that are each inclined with respect to a horizontal plane. The ink receiver receives the ejected ink at least on the first face of the first face and the second face, and receives the scraped ink on the second face. A flowability of ink on the second face is greater than a flowability of ink on the second face.

公开(公告)号：US20230302790A1

公开(公告)日：2023-09-28

申请号：US18202217

申请日：2023-05-25

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Scott A. Linn ,  James Michael Gardner ,  Michael W. Cumbie

IPC: G11C7/10 ,  B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04551 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/14072 ,  B41J2/14201 ,  B41J2/1433 ,  G11C7/1072 ,  B41J2002/14491

Abstract: A die for a printhead is provided in examples. The die includes a number of fluidic actuator arrays. A data block is associated with each of the plurality of fluidic actuator arrays. The die includes an interface comprising a data pad and a clock pad, wherein a data bit value present at the data pad is loaded into a first data block corresponding to a first fluidic actuator array on a rising clock edge and loaded into a second data block corresponding to a second fluidic actuator array on a falling clock edge.

公开(公告)号：US20230294400A1

公开(公告)日：2023-09-21

申请号：US18185123

申请日：2023-03-16

Applicant: SEIKO EPSON CORPORATION

Inventor： Yoichi NAGANUMA ,  Yuma FUKUZAWA ,  Shohei MIZUTA ,  Naohiro NAKAGAWA

IPC: B41J2/14

CPC classification number: B41J2/14201

Abstract: A liquid ejecting head includes a pressure chamber substrate having a pressure chamber, a drive element, a communication substrate having a supply communication flow path and a nozzle communication flow path at a position different from the supply communication flow path, and a coupling substrate having a supply port and the supply communication flow path and a discharge port, in which the pressure chamber substrate has a partition wall, and the communication substrate includes a first region bonded to the coupling substrate and overlapping the pressure chamber between the supply communication flow path and the nozzle communication flow path when viewed in a thickness direction, and a second region bonded to the coupling substrate and overlapping the partition wall at a position adjacent to the first region via an opening of the supply communication flow path when viewed in the thickness direction of the pressure chamber substrate.

公开(公告)号：US11738571B2

公开(公告)日：2023-08-29

申请号：US17643862

申请日：2021-12-13

Applicant: Seiko Epson Corporation

Inventor： Takahiro Kanegae ,  Nobuaki Ito ,  Hiroyuki Hagiwara

IPC: B41J3/54 ,  B41J2/14

CPC classification number: B41J3/543 ,  B41J2/14201

Abstract: a≥b≥0, p≥1, q≥1, where a is a number of pairs each consisting of two adjacent first head units, b is a number of pairs each consisting of two adjacent second head units, p is a number of first head units, and q is a number of second head units.

公开(公告)号：US20230182467A1

公开(公告)日：2023-06-15

申请号：US17835922

申请日：2022-06-08

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Tsubasa KONISHI ,  Akimasa TOYAMA

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2002/14491

Abstract: A liquid ejection head includes a plate including a nozzle for ejecting a liquid, a substrate, an actuator including a pressure chamber. The actuator includes an upper surface and a side surface connecting the upper surface to the substrate. The side surface is at an angle θ between 45 and 90 degrees. The head includes an electrode connected to the chamber. The electrode includes a first wiring on the side surface and a second wiring on the substrate within a first region thereof. The first region has a length A from a position of a line along which the upper and side surfaces meet, and the value of length A is B/tan θ′, where B is a distance between the upper surface and the substrate and θ′ is (θ−45)×2.

公开(公告)号：US11648768B2

公开(公告)日：2023-05-16

申请号：US17166865

申请日：2021-02-03

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Noboru Nitta

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04541 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/14201

Abstract: A liquid ejection apparatus includes a liquid ejection unit with a plurality of nozzles and a corresponding plurality of actuators. A drive waveform generation circuit is configured to generate drive waveforms having different drive timings. An actuator drive circuit is configured to apply a first drive waveform to a first actuator in a liquid ejection operation and a second drive waveform to a second actuator in the liquid ejection operation during which the first and second actuators are to be driven at a same nominal time. The first driving waveform is different from the second drive waveform, and the first actuator is at a position electrically closer along a predetermined direction to a power supply electrode than is the second actuator.

公开(公告)号：US20190248137A1

公开(公告)日：2019-08-15

申请号：US16309568

申请日：2018-12-13

Applicant: The Technology Partnership Plc

Inventor： Abi Graham ,  Sam Pollock ,  Sam Hyde

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2/1433 ,  B41J2/14427 ,  B41J2002/14475 ,  B41J2202/15

Abstract: A perforate element for use in a print head for non-contact liquid printing comprises: at least one ejection element including an outlet, configured to eject a bulk flow of printing liquid out of the print head; and a liquid residence element, arranged to provide a layer of liquid over the outlet which extends laterally of the outlet and through which the bulk flow is ejected.

公开(公告)号：US20190217614A1

公开(公告)日：2019-07-18

申请号：US16249388

申请日：2019-01-16

Applicant: Ricoh Company, Ltd.

Inventor： Tadashi KAIBA ,  Shuusei MURAI

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B05C5/0229 ,  B41J2/1433 ,  B41J3/4073

Abstract: A valve type nozzle controls discharge of liquid by opening and closing an discharge port by a valve element, the discharge port being configured to discharge the liquid, and the valve element being formed movably by applying a predetermined voltage to a piezoelectric element, whereby when the predetermined voltage is applied to the piezoelectric element, the valve element moves in a direction where the moving mechanism opens the discharge port when the piezoelectric element extends. This allows the liquid to be discharged. Further, when the application of the voltage to the piezoelectric element is released, the moving mechanism returns to an original shape, by which the valve element closes the discharge port is closed to prevent the discharge of the liquid.