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    NOZZLE CONDITION EVALUATION
    62.
    发明申请
    NOZZLE CONDITION EVALUATION 有权
    喷嘴条件评估

    公开(公告)号：US20170043573A1

    公开(公告)日：2017-02-16

    申请号：US15306028

    申请日：2014-04-25

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

    Inventor： Daryl E. Anderson ,  Eric T. Martin

    IPC: B41J2/045 ,  B41J29/38

    CPC classification number: B41J2/0451 ,  B41J2/04555 ,  B41J2/0458 ,  B41J2/2142 ,  B41J29/38

    Abstract: The present subject matter relates to evaluating nozzle condition of a plurality of nozzles. In one example, drive bubble detect (DBD) test results for a set of nozzles from among the plurality of nozzles are stored by a print head in a test result register, where the test result register is provided onto the print head. Further, status bits of a result-ready register provided in the print head are set to a predetermined value by the print head responsive to storing of the DBD test results in the test result register. Further, based on the setting, the DBD test results are obtained by a control unit, from the test result register, for evaluating the nozzle condition.

    Abstract translation: 本发明涉及评估多个喷嘴的喷嘴状况。 在一个示例中，来自多个喷嘴的一组喷嘴的驱动器气泡检测（DBD）测试结果由打印头存储在测试结果寄存器中，其中测试结果寄存器被提供到打印头上。 此外，响应于将DBD测试结果存储在测试结果寄存器中，由打印头将设置在打印头中的结果就绪寄存器的状态位设置为预定值。 此外，基于该设定，DBD测试结果由控制单元从测试结果寄存器获得，用于评估喷嘴状况。

    EVALUATING PRINT HEAD NOZZLE CONDITION
    63.
    发明申请
    EVALUATING PRINT HEAD NOZZLE CONDITION 有权
    评估打印头喷嘴条件

    公开(公告)号：US20170043572A1

    公开(公告)日：2017-02-16

    申请号：US15304750

    申请日：2014-04-23

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

    Inventor： Daryl E. ANDERSON ,  Eric T. Martin

    IPC: B41J2/045

    CPC classification number: B41J2/0451 ,  B41J2/04541 ,  B41J2/04555 ,  B41J2/0458 ,  B41J2/14153 ,  B41J2/16579 ,  B41J2/2142 ,  B41J2002/14354

    Abstract: The present subject matter relates to evaluating print head nozzle condition of a plurality of nozzle columns. Each of the plurality of nozzle columns comprises a set of nozzles. A plurality of drive bubble detect modules are activated, by a timing circuit coupled to each of the plurality of nozzle columns upon occurrence of at least a first predetermined time instant and a second predetermined time instant. For each of the plurality of nozzle columns, test results for a nozzle of the nozzle column are registered by the corresponding drive bubble detect module. Test results obtained based on impedances measured across a nozzle associated with the nozzle column corresponding to a drive bubble detect module are registered by the drive bubble detect module at the first predetermined time instant and the second predetermined time instant. The print head nozzle condition of the nozzle is evaluated based on the test results.

    Abstract translation: 本主题涉及评估多个喷嘴列的打印头喷嘴状况。 多个喷嘴列中的每一个包括一组喷嘴。 多个驱动气泡检测模块通过在发生至少第一预定时刻和第二预定时刻时与多个喷嘴列中的每一个相连接的定时电路来激活。 对于多个喷嘴列中的每一个，喷嘴列的喷嘴的测试结果由相应的驱动气泡检测模块记录。 基于与驱动气泡检测模块相对应的与喷嘴列相关联的喷嘴测量的阻抗获得的测试结果由驱动气泡检测模块在第一预定时刻和第二预定时刻记录。 基于测试结果评估喷嘴的打印头喷嘴状况。

    METHODS AND APPARATUS FOR PROGRAMING MEMORY OF A PRINTING CARTRIDGE
    65.
    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。

    ACTIVE CIRCUIT ELEMENTS ON A MEMBRANE
    66.
    发明公开
    ACTIVE CIRCUIT ELEMENTS ON A MEMBRANE 审中-公开

    公开(公告)号：US20230382127A1

    公开(公告)日：2023-11-30

    申请号：US18032535

    申请日：2020-10-23

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

    Inventor： Eric T. Martin ,  James R. Przybyla

    IPC: B41J2/18

    CPC classification number: B41J2/18 ,  B41J2202/12 ,  B41J2202/13

    Abstract: According to examples, an apparatus may include a substrate having a fluid recirculation channel and a membrane adjacent to the fluid recirculation channel, in which the membrane is portion of the substrate having a smaller thickness than other portions of the substrate. The apparatus may also include a component layer, in which a fluid ejection chamber may be formed in the component layer. The fluid ejection chamber may include a nozzle and fluid may be received into the fluid ejection chamber through an inlet port and recirculated to the fluid recirculation channel through an outlet port. The apparatus may further include active circuit elements formed on the membrane, in which the active circuit elements may control ejection of fluid from the fluid ejection chamber through the nozzle.

    Decoders to activate fluidic actuators for sense measurements
    69.
    发明授权
    Decoders to activate fluidic actuators for sense measurements 有权

    公开(公告)号：US11524498B2

    公开(公告)日：2022-12-13

    申请号：US16500421

    申请日：2018-04-06

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

    Inventor： Daryl E. Anderson ,  Eric T. Martin

    IPC: B41J2/14 ,  B41J2/045

    Abstract: In some examples, a fluid dispensing device includes a plurality of fluidic actuators and a decoder to detect that a first fluidic actuator is to be activated, and detect that a sense measurement is to be performed. In response to detecting that the first fluidic actuator is to be activated and the sense measurement is to be performed, the decoder is to suppress activation of the first fluidic actuator at a first time, and activate the first fluidic actuator at a second time corresponding to a sense measurement interval to perform the sense measurement of the first fluidic actuator.

    Fluidic die with fire signal adjustment
    70.
    发明授权
    Fluidic die with fire signal adjustment 有权

    公开(公告)号：US11318737B2

    公开(公告)日：2022-05-03

    申请号：US17052923

    申请日：2018-07-02

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

    Inventor： Vincent C. Korthuis ,  Rodrigo N. Henriquez ,  Eric T. Martin

    IPC: B41J2/045

    Abstract: A fluidic die includes primitives arranged to form a number of primitive zones, each primitive zone including a memory to store adjustment data, and at least one signal adjuster to receive a fire signal, and to adjust the received fire signal based on the stored adjustment data to provide an adjusted fire signal to each primitive of the primitive zone. The fluidic die includes an address bus and a set of data lines, each data line corresponding to a different one of the primitives. Mode circuitry directs address data from the address bus to each primitive and print data from each data line to the corresponding primitive when a mode signal has a first value, and directs data representing adjustment data from one of the address bus and the set of data lines to at least one of the memories when the mode signal has a second value.

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