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    Fluid ejection dies including strain gauge sensors
    1.
    发明授权
    Fluid ejection dies including strain gauge sensors 有权

    公开(公告)号：US11090942B2

    公开(公告)日：2021-08-17

    申请号：US16486930

    申请日：2017-04-24

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

    Inventor： James Gardner ,  Berkeley Fisher ,  Andrew Koll

    IPC: B41J2/165

    Abstract: A fluid ejection system includes a fluid ejection die, a service station assembly, and a controller. The fluid ejection die includes at least one strain gauge sensor to sense strain. The service station assembly is to service the fluid ejection die. The controller is to receive the sensed strain from the at least one strain gauge sensor during servicing of the fluid ejection die and adjust or stop servicing of the fluid ejection die in response to the sensed strain exceeding a servicing threshold.

    Fluid ejection device with nozzle column data groups including drive bubble detect data
    2.
    发明授权
    Fluid ejection device with nozzle column data groups including drive bubble detect data 有权

    公开(公告)号：US10821735B2

    公开(公告)日：2020-11-03

    申请号：US16335180

    申请日：2016-10-26

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

    Inventor： Daryl E Anderson ,  Eric Martin ,  James Gardner

    IPC: B41J2/175 ,  B41J2/045 ,  B41J2/14 ,  B41J2/165

    Abstract: A fluid ejection device including a plurality of primitives each having a same set of addresses and including a plurality of fluid chambers, each fluid chamber corresponding to a different address of the set of addresses and including a firing mechanism. Input logic receives a series of fire pulse groups, each fire pulse group corresponding to an address of the set of addresses and including warming data having an enable value or a disable value and a series of firing bits, each firing bit corresponding to a different primitive and having a firing value or a non-firing value. For each firing bit of each fire pulse group, when the warming data has the enable value, activation logic provides a warming pulse to the firing mechanism of the fluid chamber corresponding to the firing bit when the firing bit has the non-firing value.

    FLUIDIC DIE CONTROLLER WITH EDGE SHARPNESS MODE
    3.
    发明申请
    FLUIDIC DIE CONTROLLER WITH EDGE SHARPNESS MODE 审中-公开

    公开(公告)号：US20200164635A1

    公开(公告)日：2020-05-28

    申请号：US16612716

    申请日：2017-07-26

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

    Inventor： Eric Martin ,  James Gardner ,  Jordi Hernandez

    IPC: B41J2/045

    Abstract: A die controller to control a fluidic die having a plurality of primitives each including a plurality of nozzles addressed by a same set of addresses. The die controller provides operational data including a series of actuation data groups to the fluidic die to actuate the nozzles to eject fluid to form an article, each actuation data group including a series of fire pulse groups, with each fire pulse group corresponding to a different address of the set of addresses and including a set of actuation data for each primitive and a set of start bits to initiate actuation of the nozzles based on the actuation data of the immediately preceding fire pulse group. The die controller to provide a blank fire pulse group immediately following a last fire pulse group of the series of fire pulse groups of each actuation data group when operating in an edge sharpness mode.

    Fluidic die controller with edge sharpness mode
    6.
    发明授权
    Fluidic die controller with edge sharpness mode 有权

    公开(公告)号：US11052655B2

    公开(公告)日：2021-07-06

    申请号：US16612716

    申请日：2017-07-26

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

    Inventor： Eric Martin ,  James Gardner ,  Jordi Hernandez

    IPC: B41J2/045

    Abstract: A die controller to control a fluidic die having a plurality of primitives each including a plurality of nozzles addressed by a same set of addresses. The die controller provides operational data including a series of actuation data groups to the fluidic die to actuate the nozzles to eject fluid to form an article, each actuation data group including a series of fire pulse groups, with each fire pulse group corresponding to a different address of the set of addresses and including a set of actuation data for each primitive and a set of start bits to initiate actuation of the nozzles based on the actuation data of the immediately preceding fire pulse group. The die controller to provide a blank fire pulse group immediately following a last fire pulse group of the series of fire pulse groups of each actuation data group when operating in an edge sharpness mode.

    FLUID EJECTION DIES INCLUDING STRAIN GAUGE SENSORS
    7.
    发明申请
    FLUID EJECTION DIES INCLUDING STRAIN GAUGE SENSORS 有权

    公开(公告)号：US20210129540A1

    公开(公告)日：2021-05-06

    申请号：US16486930

    申请日：2017-04-24

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

    Inventor： James Gardner ,  Berkeley Fisher ,  Andrew Koll

    IPC: B41J2/165

    Abstract: A fluid ejection system includes a fluid ejection die, a service station assembly, and a controller. The fluid ejection die includes at least one strain gauge sensor to sense strain. The service station assembly is to service the fluid ejection die. The controller is to receive the sensed strain from the at least one strain gauge sensor during servicing of the fluid ejection die and adjust or stop servicing of the fluid ejection die in response to the sensed strain exceeding a servicing threshold.

    Fluidic die sense architecture
    8.
    发明授权
    Fluidic die sense architecture 有权

    公开(公告)号：US10946651B2

    公开(公告)日：2021-03-16

    申请号：US16619341

    申请日：2017-07-20

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

    Inventor： Eric Martin ,  James Gardner ,  Rogelio Cicili

    IPC: B41J2/14 ,  B41J2/045

    Abstract: A fluidic die includes a sense architecture having a global sense block to provide an analog reference signal and an array of distributed sense blocks. Each distributed sense block is to receive a same set of addresses via an address bus and each is to receive a corresponding sense enable signal having an enable value or a disable value. Each distributed sense block includes an array of sensors, each sensor corresponding to a different address of the set of addresses and a sample circuit to apply the analog reference signal to the sensor corresponding to the address on the address bus when the corresponding sense enable signal has the enable value, and provide to the global sense block an analog sense signal from the sensor resulting from application of the analog reference signal.

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