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    Interspersed fluidic elements and circuit elements in a fluidic die
    21.
    发明授权
    Interspersed fluidic elements and circuit elements in a fluidic die 有权

    公开(公告)号：US12257837B2

    公开(公告)日：2025-03-25

    申请号：US18032797

    申请日：2020-10-23

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

    Inventor： Eric T. Martin ,  James R. Przybyla ,  Garrett E. Clark

    IPC: B41J2/14 ,  B41J2/145

    Abstract: In some examples, a fluidic die includes an arrangement of fluidic elements to dispense a fluid, where each fluidic element of the fluidic elements includes a fluidic actuator and a fluid chamber. The fluidic die includes an array of fluid feed holes in a plurality of dimensions to communicate the fluid with the fluidic elements, where each of multiple fluid feed holes along a first dimension of the plurality of dimensions is distinct from multiple fluid feed holes along a second dimension of the plurality of dimensions. The fluidic die includes circuit elements interspersed in regions between the fluidic elements along different axes of the fluidic die, where each circuit element of the circuit elements includes an active device. The fluidic elements and the circuit elements are formed on a common substrate.

    FLUID-EJECTION PRINTHEAD HAVING SPARSE ARRAY OF FLUID-EJECTION NOZZLES
    22.
    发明申请
    FLUID-EJECTION PRINTHEAD HAVING SPARSE ARRAY OF FLUID-EJECTION NOZZLES 有权

    公开(公告)号：US20250058563A1

    公开(公告)日：2025-02-20

    申请号：US18720579

    申请日：2021-12-20

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

    Inventor： Jacob Lum ,  James R. Przybyla

    IPC: B41J2/14 ,  B41J2/15

    Abstract: A fluid-ejection printhead includes a sparse array of fluid-ejection nozzles through which fluid is ejected onto dot rows parallel to a scan axis of the fluidejection printhead. The fluid is ejected by more than one fluid-ejection nozzle of the sparse array onto each dot row. The fluid-ejection printhead includes fluidejection element. Each element can correspond to a pair of the fluid-ejection nozzles through which the fluid is ejected onto a same dot row and include a corresponding pair of fluid-ejection actuators. Each element can instead correspond to one of the fluid-ejection nozzles and include one fluid-ejection actuator.

    Fluidic dies with selectors adjacent respective firing subassemblies
    24.
    发明授权
    Fluidic dies with selectors adjacent respective firing subassemblies 有权

    公开(公告)号：US11312129B2

    公开(公告)日：2022-04-26

    申请号：US17267542

    申请日：2018-11-21

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

    Inventor： Eric Martin ,  James R. Przybyla ,  Daryl E. Anderson

    IPC: B41J2/045 ,  B41J2/14

    Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes an array of firing subassemblies grouped into zones. Each firing subassembly includes 1) a firing chamber, 2) a fluid actuator, and 3) a sensor plate. The fluidic die also includes a measurement device per zone to measure a voltage indicative of an impedance within a selected firing chamber. The fluidic die includes a selector per firing subassembly to couple a selected sensor plate to the measurement device. A selector is adjacent a respective firing subassembly and a distance between the selector and the measurement device is different as compared to other selectors.

    Non-nucleation fluid actuator measurements
    25.
    发明授权
    Non-nucleation fluid actuator measurements 有权

    公开(公告)号：US11292250B2

    公开(公告)日：2022-04-05

    申请号：US16965703

    申请日：2018-03-12

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

    Inventor： Eric Martin ,  Tsuyoshi Yamashita ,  James R. Przybyla

    IPC: B41J2/045 ,  B41J2/14

    Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes an array of fluid actuators grouped into primitives. Each actuator is disposed in a fluid chamber. The fluidic die also includes an array of fluid sensors. Each fluid sensor is disposed within a fluid chamber and determines a characteristic within the fluid chamber. A data parser of the fluidic die extracts from an incoming signal, firing instructions and measurement instructions for the fluidic die. The measurement instructions indicate at least one of a peak measurement during a nucleation event and a reference measurement during a non-nucleation event. A firing controller generates firing signals based on the firing instructions and a measurement controller activates, during a measurement interval of a printing cycle for the primitive, a measurement for a selected actuator based on the measurement instructions.

    Sense measurements for fluidic actuators
    26.
    发明授权
    Sense measurements for fluidic actuators 有权

    公开(公告)号：US11173712B2

    公开(公告)日：2021-11-16

    申请号：US16970470

    申请日：2018-04-06

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

    Inventor： Eric T. Martin ,  Daryl E. Anderson ,  James R. Przybyla

    IPC: B41J2/125 ,  B41J2/045

    Abstract: In some examples, a system includes a device support to receive a fluid dispensing device, and a controller to identify, based on data controlling activation of fluidic actuators, a fluidic actuator that is to be activated in a first activation cycle of a group of activation cycles that correspond to activation intervals of respective fluidic actuators of a group of fluidic actuators of the fluid dispensing device, the identified fluidic actuator being part of the group of fluidic actuators. To perform a sense measurement for the identified fluidic actuator, the controller suppresses activation of the identified fluidic actuator in the first activation cycle, and causes activation of the identified fluidic actuator in a sense measurement cycle different from the first activation cycle, the sense measurement cycle being part of the group of activation cycles.

    FLUIDIC DIE WITH NOZZLE LAYER ELECTRODE FOR FLUID CONTROL
    27.
    发明申请
    FLUIDIC DIE WITH NOZZLE LAYER ELECTRODE FOR FLUID CONTROL 有权

    公开(公告)号：US20210347171A1

    公开(公告)日：2021-11-11

    申请号：US17251982

    申请日：2019-01-31

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

    Inventor： Daryl E. Anderson ,  Eric Martin ,  James R. Przybyla ,  Chien-Hua Chen

    IPC: B41J2/14 ,  B41J2/09 ,  B41J2/085

    Abstract: One example provides a fluidic die including a semiconductor substrate, and a nozzle layer disposed on the substrate, the nozzle layer having a top surface opposite the substrate and including a nozzle formed therein, the nozzle including a fluid chamber disposed below the top surface and a nozzle orifice extending through the nozzle layer from the top surface to the fluid chamber, the fluid chamber to hold fluid, and the nozzle to eject fluid drops from the fluid chamber via the nozzle orifice. An electrode is disposed in contact with the nozzle layer about a perimeter of the nozzle orifice, the electrode to carry an electrical charge to adjust movement of electrically charged components of the fluid.

    FLUID ACTUATOR REGISTERS
    28.
    发明申请
    FLUID ACTUATOR REGISTERS 审中-公开

    公开(公告)号：US20200234092A1

    公开(公告)日：2020-07-23

    申请号：US16486119

    申请日：2017-04-14

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Daryl E. Anderson ,  Eric T. Martin ,  James R. Przybyla

    IPC: G06K15/10 ,  G06K15/02 ,  G06F9/30

    Abstract: Examples include a fluidic die. The fluidic die may comprise an array of fluid actuators, an actuation data register, a mask register, and actuation logic. The actuation data register may store actuation data that indicates fluid ejectors to actuate for a set of actuation events. The mask register may store mask data that indicates a set of fluid actuators enabled for actuation for a respective actuation event of the set of actuation events. The actuation logic may electrically actuate a subset of the fluid actuators based at least in part on the actuation data register and the mask register for the respective actuation event.

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