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    COLLAPSIBLE CONTAINER AND SENSOR
    21.
    发明申请
    COLLAPSIBLE CONTAINER AND SENSOR 审中-公开

    公开(公告)号：US20200055317A1

    公开(公告)日：2020-02-20

    申请号：US16661802

    申请日：2019-10-23

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

    Inventor： Dennis R. Esterberg ,  Matthew J. Janssen ,  Jeffrey A. Nielsen ,  Norman L. Berger

    IPC: B41J2/175 ,  G01B7/14 ,  B41J29/38

    Abstract: An example printhead assembly includes a housing, nozzles and a collapsible container within the housing to supply ink to the nozzles. The collapsible container includes a top wall, a bottom wall, first and second side walls that form an interior and a spring assembly within the interior. The first flexible wall includes a first amount of excess material. The second flexible wall includes a second amount of excess material less than the first amount of excess material such that motion of the first flexible wall of the collapsible container is constrained against movement to a lesser extent as compared to the second flexible wall. The first flexible wall faces the sensor. A sensor assembly is coupled to the housing and includes a sensor to provide a sensor signal indicating the amount of ink within the collapsible container.

    Fluidic ejection controllers with selectively removable ejection boards
    25.
    发明授权
    Fluidic ejection controllers with selectively removable ejection boards 有权

    公开(公告)号：US11639056B2

    公开(公告)日：2023-05-02

    申请号：US16765795

    申请日：2017-12-15

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

    Inventor： Matthew David Smith ,  Dennis R. Esterberg ,  Jeffrey A. Nielsen

    IPC: B41J2/14 ,  B01L3/02 ,  G01N35/10 ,  B01L3/00

    Abstract: In one example in accordance with the present disclosure, a fluidic ejection controller is described. The fluidic ejection controller includes a firing board to pass electrical control signals for ejecting fluid from a fluidic ejection device. An ejection board of the fluidic ejection controller is electrically coupled to, and selectively removable from, the firing board to pass the electrical control signals to the fluidic ejection device. Electrical pins are disposed on the ejection board in a pattern that matches a pattern of electrical pads on the fluidic ejection device. The electrical pins interface with corresponding electrical pads to pass the electrical control signals from the ejection board to the fluidic ejection device.

    FLUID EJECTIONS IN NANOWELLS
    27.
    发明申请
    FLUID EJECTIONS IN NANOWELLS 审中-公开

    公开(公告)号：US20200368737A1

    公开(公告)日：2020-11-26

    申请号：US16767086

    申请日：2018-01-30

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

    Inventor： Jeffrey A. Nielsen ,  Christie Dudenhoefer ,  Kenneth Ward

    IPC: B01L3/02

    Abstract: A fluid ejection system, in an example, includes at least one nozzle of at least one die from which a fluid is ejected and at least one nanowell at which the at least one nozzle ejects an amount of fluid. A method of dispensing a fluid, in an example, includes addressing at least one nanowell with at least one nozzle of at least one die, and depositing a fluid in the nanowell with the at least one nozzle.

    FLUID EJECTION DIES WITH FLUID CLEANING STRUCTURES
    28.
    发明申请
    FLUID EJECTION DIES WITH FLUID CLEANING STRUCTURES 审中-公开

    公开(公告)号：US20200298226A1

    公开(公告)日：2020-09-24

    申请号：US16765705

    申请日：2017-12-15

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

    Inventor： Kathryn Cyr ,  Debora J. Thomas ,  Jeffrey A. Nielsen

    IPC: B01L3/02

    Abstract: In one example in accordance with the present disclosure, a fluid ejection die is described. The fluid ejection die includes a fluid feed slot to deliver fluid from a reservoir to an array of nozzles. Each nozzle of the array includes an ejection chamber, an opening, a fluid actuator disposed within the ejection chamber, and a fluid channel between the fluid feed slot and the ejection chamber. The fluid ejection die also includes a fluid cleaning structure to allow live cells in the fluid to pass to the nozzle while capturing other components.

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