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    FLUIDIC DIES WITH TRANSMISSION PATHS HAVING CORRESPONDING PARASITIC CAPACITANCES
    2.
    发明申请
    FLUIDIC DIES WITH TRANSMISSION PATHS HAVING CORRESPONDING PARASITIC CAPACITANCES 有权

    公开(公告)号：US20210268797A1

    公开(公告)日：2021-09-02

    申请号：US16972119

    申请日：2018-11-21

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

    Inventor： Eric T. Martin ,  Vincent C. Korthuis

    IPC: B41J2/14 ,  B41J2/155 ,  B41J2/045

    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 disposed, and 3) a sensor plate. The fluidic die also includes a measurement device per zone to determine a state of a selected sensor plate. The fluidic die includes a selector per firing subassembly to couple the selected sensor plate to the measurement device. The fluidic die also includes a transmission path between each selector and its corresponding sensor plate. A first transmission path for a particular sensor plate has physical properties such that a parasitic capacitance along the first transmission path corresponds to a parasitic capacitance for a second transmission path of a second sensor plate in the zone, regardless of a difference in transmission path length.

    FLUIDIC DIE
    3.
    发明申请
    FLUIDIC DIE 有权

    公开(公告)号：US20210260870A1

    公开(公告)日：2021-08-26

    申请号：US17302887

    申请日：2021-05-14

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

    Inventor： Sean P. McClelland ,  Donald J. Milligan ,  Eric T. Martin

    IPC: B41J2/045

    Abstract: A fluidic die may include a substrate supporting a fluid actuator address line and first and second groups of fluid actuators connected to the fluid actuator address line. The first group of fluid actuators may include first and second types of fluid actuators having different operating characteristics. The second group of fluid actuators may include the first and the second types of fluid actuators. The fluid actuators of the first and second groups have addresses such that a fluid actuator of the first type in the first group and a fluid actuator of the second type in the second group are both enabled in response to a single enabling event on the fluid actuator address line.

    Fluid ejection device circuit
    4.
    发明授权
    Fluid ejection device circuit 有权

    公开(公告)号：US10960661B2

    公开(公告)日：2021-03-30

    申请号：US16400071

    申请日：2019-05-01

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

    Inventor： Eric T. Martin ,  Chris Bakker ,  James R. Przybyla

    IPC: B41J2/045 ,  B41J2/07

    Abstract: In some examples, a circuit for a fluid ejection device includes an energy delivery device and a circuit layer. The circuit layer includes first and second activation devices connected to the energy delivery device, the first and second activation devices to activate the energy delivery device, first drive logic coupled to the first activation device, and second drive logic coupled to the second activation device. An interconnect layer couples a same address selection signal to the first drive logic and the second drive logic.

    WAVEFORM SELECTION AND/OR SCALING FOR DRIVING NOZZLE OF FLUID-JET PRINTING DEVICE
    8.
    发明申请
    WAVEFORM SELECTION AND/OR SCALING FOR DRIVING NOZZLE OF FLUID-JET PRINTING DEVICE 有权
    流体喷射装置驱动喷嘴的波形选择和/或放大

    公开(公告)号：US20160332441A1

    公开(公告)日：2016-11-17

    申请号：US15224080

    申请日：2016-07-29

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

    Inventor： Andrew L. Van Brocklin ,  Eric T. Martin ,  Neel Banerjee

    IPC: B41J2/045

    CPC classification number: B41J2/04588 ,  B41J2/0458

    Abstract: In one example, a device for driving a nozzle of a fluid-jet printing device includes a circuit to, for each pixel time of a plurality of pixel times select a waveform from a plurality of waveforms based on more than one of waveform time delay, waveform pulse width and waveform shape, and apply the selected waveform to the nozzle to drive the nozzle to eject fluid for a current pixel time.

    Abstract translation: 在一个示例中，用于驱动流体喷射打印装置的喷嘴的装置包括：电路，对于多个像素时间的每个像素时间，基于多于一个波形时间延迟的多个波形来选择波形， 波形脉冲宽度和波形形状，并将所选波形应用于喷嘴，以驱动喷嘴喷射流体以达到当前像素时间。

    HEATER CONTROLLER AND METHOD THEREOF
    10.
    发明申请
    HEATER CONTROLLER AND METHOD THEREOF 有权
    加热器控制器及其方法

    公开(公告)号：US20140098155A1

    公开(公告)日：2014-04-10

    申请号：US14119495

    申请日：2011-07-29

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

    Inventor： Eric T. Martin ,  Mark H. MacKenzie

    IPC: B41J29/00

    CPC classification number: B41J29/00 ,  B41J2/04528 ,  B41J2/04563 ,  B41J2/04573 ,  B41J2/0458 ,  B41J2/04596 ,  B41J2/32 ,  B41J2/365

    Abstract: A heater controller to maintain a uniform temperature of a printhead is provided herein. The heater controller monitors the temperature of the printhead and controls the heating of the printhead. The heater controller enables at least two of a plurality of warming groups based on warming power requirements of the printhead. The heater controller alternates activation of the at least two of the plurality of warming groups by rotating each of the at least two of the plurality of warming groups between an on mode and an off mode to uniformily distribute heating power to the printhead.

    Abstract translation: 本文提供了一种保持打印头温度均匀的加热器控制器。 加热器控制器监控打印头的温度并控制打印头的加热。 加热器控制器基于打印头的加热功率需求使多个加热组中的至少两个成为可能。 加热器控制器通过使多个加热组中的至少两个加热组中的每个加热组在打开模式和关闭模式之间交替激活至少两个加热组，以均匀地将加热功率分配给打印头。

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