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    METHODS AND APPARATUS FOR PROGRAMING MEMORY OF A PRINTING CARTRIDGE
    41.
    发明申请
    METHODS AND APPARATUS FOR PROGRAMING MEMORY OF A PRINTING CARTRIDGE 有权
    用于编程印刷机的存储器的方法和装置

    公开(公告)号：US20160125943A1

    公开(公告)日：2016-05-05

    申请号：US14527466

    申请日：2014-10-29

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

    Inventor： James Michael Gardner ,  Eric T. Martin ,  Daryl E. Anderson

    IPC: G11C16/10 ,  G11C16/30 ,  G03G15/00 ,  G11C16/04

    CPC classification number: G11C16/10 ,  B41J2/17546 ,  G03G21/1882 ,  G11C16/0408 ,  G11C16/08 ,  G11C16/12 ,  G11C16/30

    Abstract: Methods to program a floating gate memory array include, in response to a request to program a second bit of the floating gate memory array, at a first time, outputting a programming voltage to cause a first node voltage at a first source of a first transistor corresponding to a first bit, wherein the first node voltage is greater than a second node voltage at a second source of a second transistor corresponding to the second bit. The method further includes at a second time, increasing the programming voltage of the floating gate memory array to program the second bit of the floating gate memory array.

    Abstract translation: 编程浮动栅极存储器阵列的方法包括响应于对浮置栅极存储器阵列的第二位进行编程的请求，在第一时间输出编程电压以使第一晶体管的第一源处的第一节点电压 对应于第一位，其中第一节点电压大于对应于第二位的第二晶体管的第二源处的第二节点电压。 该方法还包括第二时间，增加浮动栅极存储器阵列的编程电压以对浮动栅极存储器阵列的第二位进行编程。

    INKJET PRINTING SYSTEM, FLUID EJECTION SYSTEM, AND METHOD THEREOF
    42.
    发明申请
    INKJET PRINTING SYSTEM, FLUID EJECTION SYSTEM, AND METHOD THEREOF 有权
    喷墨打印系统，流体喷射系统及其方法

    公开(公告)号：US20150124011A1

    公开(公告)日：2015-05-07

    申请号：US14594863

    申请日：2015-01-12

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

    Inventor： Andrew L. Van Brocklin ,  Adam L . Ghozeil ,  Daryl E. Anderson

    IPC: B41J2/175

    CPC classification number: B41J2/0452 ,  B41J2/0451 ,  B41J2/0458 ,  B41J2/04586 ,  B41J2/14153 ,  B41J2/175 ,  B41J2/17506 ,  B41J2/17566 ,  B41J2002/14354

    Abstract: An inkjet printing system, fluid ejection system and method thereof are disclosed. The fluid ejection system includes a fluid ejection device and a determination module to determine a supply condition based on the count value output by the converter module. The fluid ejection device includes a fluid supply chamber to store fluid, an ejection chamber including a nozzle and a corresponding ejection member to selectively eject the fluid through the nozzle, a pressure sensor unit having a sensor plate to output a voltage value corresponding to a cross-sectional area of an amount of fluid in the ejection chamber. The fluid ejection system also includes a converter module to output a count value corresponding to the voltage value output by the pressure sensor unit.

    Abstract translation: 公开了一种喷墨打印系统，流体喷射系统及其方法。 流体喷射系统包括流体喷射装置和确定模块，用于基于由转换器模块输出的计数值来确定供给条件。 流体喷射装置包括用于存储流体的流体供应室，包括喷嘴的喷射室和相应的喷射构件，以选择性地通过喷嘴喷射流体;压力传感器单元，具有传感器板，用于输出对应于十字的电压值 在喷射室中的流体量的检测区域。 流体喷射系统还包括转换器模块，用于输出与由压力传感器单元输出的电压值对应的计数值。

    Fluidic die with nozzle layer electrode for fluid control
    44.
    发明授权
    Fluidic die with nozzle layer electrode for fluid control 有权

    公开(公告)号：US11541658B2

    公开(公告)日：2023-01-03

    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 ,  B41J2/085 ,  B41J2/09

    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.

    PRINTHEAD HIGH SIDE SWITCH CONTROLS
    45.
    发明申请
    PRINTHEAD HIGH SIDE SWITCH CONTROLS 有权

    公开(公告)号：US20220111636A1

    公开(公告)日：2022-04-14

    申请号：US17413679

    申请日：2019-06-19

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

    Inventor： Eric Thomas Martin ,  Rogelio Cicili ,  Daryl E. Anderson

    IPC: B41J2/045 ,  H03K17/687

    Abstract: In example implementations, an apparatus is provided. The apparatus includes a power supply, a first switch coupled, a second switch, and a second resistor. The first switch is coupled to the power supply and a low voltage control block. The second switch is coupled to the power supply and the first switch. The second resistor is coupled to the second switch to generate heat in response to being energized. The first switch is to control activation of the second switch via a fire signal from the low voltage control block and through the first resistor to energize the second resistor and cause a nozzle chamber to dispense a printing fluid.

    Printing agent containers
    46.
    发明授权
    Printing agent containers 有权

    公开(公告)号：US11298949B2

    公开(公告)日：2022-04-12

    申请号：US16753415

    申请日：2017-10-18

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

    Inventor： Daryl E. Anderson ,  James Michael Gardner

    IPC: B41J2/175

    Abstract: It is disclosed a printing agent container having ink an authenticity detection mechanisms comprising: a receptacle having a top wall a bottom wall opposing such top wall and a sidewall between such top wall and such bottom wall; an internal volume defined by such receptacle that contains a printing agent, and a vibration transducer on one of the side walls, wherein the container is to be mechanically coupled to a carriage so that the printing fluid is disposed on the bottom surface, being the vibration transducer to detect a vibration signal induced by the carriage and wherein the container comprises a communication channel to a controller being the controller to receive through the communication channel a container signature from the vibration transducer and to identify a container identification signal associated to the container signature.

    ZONE-BASED FIRING SIGNAL ADJUSTMENT
    50.
    发明申请
    ZONE-BASED FIRING SIGNAL ADJUSTMENT 有权

    公开(公告)号：US20210362490A1

    公开(公告)日：2021-11-25

    申请号：US17045516

    申请日：2018-06-11

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

    Inventor： Eric Martin ,  Daryl E. Anderson

    IPC: B41J2/045 ,  B41J2/195

    Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes a number of zones. Each zone includes a number of sets, each set including a number of fluidic devices. Each fluidic device includes a fluid chamber and a fluid actuator disposed in the chamber. Each fluidic device also includes a sensor to sense a characteristic of the zone and a register to hold an adjustment value that indicates how much to adjust a firing signal in the zone. A delay device per set delays the firing signal at a corresponding set. An adjustment device per set generates an adjusted firing signal based on the adjustment value, a delayed firing signal corresponding to the set, and at least one delayed firing signal received from another set. The delayed firing signals from different sets are time shifted relative to one another.

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