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    Electrostatic membrane diffusion bonding structure and process
    1.
    发明授权
    Electrostatic membrane diffusion bonding structure and process 有权
    静电膜扩散粘结结构及工艺

    公开(公告)号：US09102148B2

    公开(公告)日：2015-08-11

    申请号：US14106020

    申请日：2013-12-13

    Applicant: XEROX CORPORATION

    Inventor： Peter J. Nystrom ,  David L. Knierim

    IPC: B41J2/04 ,  B41J2/14 ,  B41J2/16

    CPC classification number: B41J2/14314 ,  B41J2/16 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1631 ,  B41J2/1642 ,  B41J2/1646

    Abstract: A method and structure for a printhead including a plurality of electrostatic actuators may include the formation of a first conductive layer, a first dielectric layer over the first conductive layer, and a second dielectric layer over the first dielectric layer. The first and second dielectric layers may be patterned to expose the first conductive layer, then sidewalls of the first dielectric layer may be isotropically etched to recess the sidewalls under the second dielectric layer. A self-patterned second conductive layer may be formed to include a first portion that forms at least a portion of an actuator electrode and physically and electrically contacts the first conductive layer, and a second portion that physically contacts the second dielectric layer. An actuator membrane may be diffusion bonded to the second dielectric layer using the second portion of the second conductive layer.

    Abstract translation: 用于包括多个静电致动器的打印头的方法和结构可以包括形成第一导电层，在第一导电层上方的第一介电层，以及在第一介电层上的第二介电层。 可以对第一和第二电介质层进行图案化以暴露第一导电层，然后可以各向同性蚀刻第一介电层的侧壁以使第二介电层下的侧壁凹陷。 自形图案化的第二导电层可以形成为包括形成致动器电极的至少一部分的第一部分，并且物理和电接触第一导电层，以及物理接触第二介电层的第二部分。 致动器膜可以使用第二导电层的第二部分扩散接合到第二介电层。

    METHOD OF SENSING DEGRADATION OF PIEZOELECTRIC ACTUATORS
    3.
    发明申请
    METHOD OF SENSING DEGRADATION OF PIEZOELECTRIC ACTUATORS 有权
    压电致动器传感降解方法

    公开(公告)号：US20160082720A1

    公开(公告)日：2016-03-24

    申请号：US14495596

    申请日：2014-09-24

    Applicant: XEROX CORPORATION

    Inventor： Steven E. Ready ,  Terrance L. Stephens ,  David L. Knierim ,  David Alan Tence

    IPC: B41J2/045

    CPC classification number: B41J2/04506 ,  B41J2/0451 ,  B41J2/04581 ,  B41J2002/14354

    Abstract: Systems and methods for sensing degradation of a piezoelectric actuator in a print head. One or more electrical pulses may be transmitted to the piezoelectric actuator that cause the piezoelectric actuator to bend, thereby creating a pressure wave. The pressure wave may be sensed and converted into an electrical signal. The electrical signal may be compared to a reference signal.

    Abstract translation: 用于感测打印头中的压电致动器的劣化的系统和方法。 可以将一个或多个电脉冲传输到压电致动器，使得压电致动器弯曲，从而产生压力波。 可以感测压力波并将其转换成电信号。 电信号可以与参考信号进行比较。

    ELECTROSTATIC MEMBRANE DIFFUSION BONDING STRUCTURE AND PROCESS
    4.
    发明申请
    ELECTROSTATIC MEMBRANE DIFFUSION BONDING STRUCTURE AND PROCESS 有权
    静电膜扩散粘结结构与工艺

    公开(公告)号：US20150165769A1

    公开(公告)日：2015-06-18

    申请号：US14106020

    申请日：2013-12-13

    Applicant: XEROX CORPORATION

    Inventor： Peter J. Nystrom ,  David L. Knierim

    IPC: B41J2/14 ,  B41J2/16

    CPC classification number: B41J2/14314 ,  B41J2/16 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1631 ,  B41J2/1642 ,  B41J2/1646

    Abstract: A method and structure for a printhead including a plurality of electrostatic actuators may include the formation of a first conductive layer, a first dielectric layer over the first conductive layer, and a second dielectric layer over the first dielectric layer. The first and second dielectric layers may be patterned to expose the first conductive layer, then sidewalls of the first dielectric layer may be isotropically etched to recess the sidewalls under the second dielectric layer. A self-patterned second conductive layer may be formed to include a first portion that forms at least a portion of an actuator electrode and physically and electrically contacts the first conductive layer, and a second portion that physically contacts the second dielectric layer. An actuator membrane may be diffusion bonded to the second dielectric layer using the second portion of the second conductive layer.

    Abstract translation: 用于包括多个静电致动器的打印头的方法和结构可以包括形成第一导电层，在第一导电层上方的第一介电层，以及在第一介电层上的第二介电层。 可以对第一和第二电介质层进行图案化以暴露第一导电层，然后可以各向同性蚀刻第一介电层的侧壁以使第二介电层下的侧壁凹陷。 自形图案化的第二导电层可以形成为包括形成致动器电极的至少一部分的第一部分，并且物理和电接触第一导电层，以及物理接触第二介电层的第二部分。 致动器膜可以使用第二导电层的第二部分扩散接合到第二介电层。

    Fluid Level Sensing System And Method
    5.
    发明申请
    Fluid Level Sensing System And Method 有权
    液位传感系统及方法

    公开(公告)号：US20130050313A1

    公开(公告)日：2013-02-28

    申请号：US13664538

    申请日：2012-10-31

    Applicant: Xerox Corporation

    Inventor： Isaac S. Frazier ,  David L. Knierim ,  James M. Bonicatto ,  Michael Norkitis

    IPC: B41J2/195

    CPC classification number: B41J2/17566 ,  B41J2002/17579

    Abstract: An ink level sensing system that exhibits good sensitivity is described herein. The system includes a first probe having a first active surface, a second probe having a second active surface facing the first active surface, a memory in which data indicative of a conductivity curve and command instructions are stored, and a processor configured to execute the command instructions to associate a level of fluid in a reservoir with a first signal indicative of the electrical coupling between the first active surface and the second active surface with reference to the data indicative of a conductivity curve.

    Abstract translation: 本文描述了具有良好灵敏度的油墨液位检测系统。 该系统包括具有第一有源表面的第一探针，具有面向第一有源表面的第二有源表面的第二探针，其中存储指示电导率曲线和命令指令的数据的存储器，以及被配置为执行命令的处理器 参考指示电导率曲线的数据，将贮存器中的液体水平与指示第一活性表面和第二活性表面之间的电耦合的第一信号相关联的指令。

    Print substrate optical motion sensing and dot clock generation
    6.
    发明授权
    Print substrate optical motion sensing and dot clock generation 有权

    公开(公告)号：US11260678B2

    公开(公告)日：2022-03-01

    申请号：US16452976

    申请日：2019-06-26

    Applicant: XEROX CORPORATION

    Inventor： David L. Knierim

    IPC: B41J11/00 ,  B41J2/045 ,  B41J2/125

    Abstract: A system to direct print onto print substrates has a print head, at least one optical image sensor arranged adjacent a print substrate, wherein the print substrate will move in a process direction past the print head, at least one telecentric lens arranged between the print substrate and the at least one optical image sensor, and control circuitry electrically connected to the optical at least one image sensor and the print head, the control circuitry to generate dot clocks to cause the print head to print onto the substrate based upon data from the at least one optical image sensor identifying a position of the print substrate.

    Ink jet print head with standard computer interface
    7.
    发明授权
    Ink jet print head with standard computer interface 有权

    公开(公告)号：US10796209B2

    公开(公告)日：2020-10-06

    申请号：US16018414

    申请日：2018-06-26

    Applicant: XEROX CORPORATION

    Inventor： David L. Knierim

    IPC: B41J2/08 ,  G06K15/10 ,  B41J2/045 ,  B41J3/54

    Abstract: A print head, has a standardized computer interface to allow the print head to connect directly to a standard computer, an array of jets to deposit ink on a substrate in accordance with image data from the standard computer, a processing element to receive image data through the standardized computer interface, a buffer to store the image data received through the standardized computer interface and to transmit the image data to the array of jets when triggered by a dot clock, the buffer under control of the processing element and having a flexible depth of storage, and a driver to trigger individual ones of the array of jets in accordance with the image data.

    Ink jet pre-fire waveform control
    8.
    发明授权
    Ink jet pre-fire waveform control 有权

    公开(公告)号：US10360483B2

    公开(公告)日：2019-07-23

    申请号：US15467735

    申请日：2017-03-23

    Applicant: XEROX CORPORATION

    Inventor： David L. Knierim

    IPC: B41J2/045 ,  G06K15/10

    Abstract: A method, includes receiving native image data at a processor for a printing system having a jet stack including a nozzle plate with an array of jets, formatting the native image data by pixels for each jet within the array of jets to produce ordered image data, scanning the ordered image data to determine timing and frequency of any pre-fire sequences needed for each jet, replacing a portion of the ordered image data for jets that need pre-fire sequences with a predetermined trigger sequence followed by a number and pattern of pre-fire pulses to produce modified image data, and transmit the modified image data.

    Fluid level sensing system and method
    10.
    发明授权
    Fluid level sensing system and method 有权

    公开(公告)号：US08579396B2

    公开(公告)日：2013-11-12

    申请号：US13664538

    申请日：2012-10-31

    Applicant: Xerox Corporation

    Inventor： Isaac S. Frazier ,  David L. Knierim ,  James M. Bonicatto ,  Michael Norkitis

    IPC: B41J29/393 ,  B41J2/195

    CPC classification number: B41J2/17566 ,  B41J2002/17579

    Abstract: An ink level sensing system that exhibits good sensitivity is described herein. The system includes a first probe having a first active surface, a second probe having a second active surface facing the first active surface, a memory in which data indicative of a conductivity curve and command instructions are stored, and a processor configured to execute the command instructions to associate a level of fluid in a reservoir with a first signal indicative of the electrical coupling between the first active surface and the second active surface with reference to the data indicative of a conductivity curve.

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