公开(公告)号：US09962949B2

公开(公告)日：2018-05-08

申请号：US15113384

申请日：2014-01-30

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

Inventor： Adam L. Ghozeil ,  Scott A. Linn ,  David Maxfield ,  Andrew Van Brocklin

IPC: B41J2/175 ,  B41J2/14

CPC classification number: B41J2/17566 ,  B41J2/1404 ,  B41J2002/14354 ,  B41J2002/17579

Abstract: In an implementation, a printhead includes a nozzle and a fluid channel. A sensor plate is located within the fluid channel. An impedance measurement circuit is coupled to the sensor plate to measure impedance of fluid within the channel during a fluid movement event that moves fluid past the sensor plate.

公开(公告)号：US20180001634A1

公开(公告)日：2018-01-04

申请号：US15706315

申请日：2017-09-15

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

Inventor： Adam L. Ghozeil ,  David Maxfield ,  Peter James Fricke

IPC: B41J2/14 ,  B41J2/045

CPC classification number: B41J2/1433 ,  B41J2/04541 ,  B41J2/0458 ,  B41J2/14072 ,  B41J2002/14491

Abstract: An example provides a fluid ejection apparatus including a fluid feed slot along a length of a print head die of the fluid ejection apparatus to supply a fluid to a plurality of drop ejectors, control circuitry adjacent to at least one side of the fluid feed slot to control ejection of drops of fluid from the plurality of drop ejectors, and a single power supply connector at an end of the print head die to supply power to the control circuitry.

公开(公告)号：US09796181B2

公开(公告)日：2017-10-24

申请号：US15039374

申请日：2013-11-27

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

Inventor： Adam L. Ghozeil ,  David Maxfield ,  Peter James Fricke

IPC: B41J2/14 ,  B41J2/045

CPC classification number: B41J2/1433 ,  B41J2/04541 ,  B41J2/0458 ,  B41J2/14072 ,  B41J2002/14491

Abstract: An example provides a fluid ejection apparatus including a fluid feed slot along a length of a print head die of the fluid ejection apparatus to supply a fluid to a plurality of drop ejectors, control circuitry adjacent to at least one side of the fluid feed slot to control ejection of drops of fluid from the plurality of drop ejectors, and a single power supply connector at an end of the print head die to supply power to the control circuitry.

公开(公告)号：US20170028738A1

公开(公告)日：2017-02-02

申请号：US15113384

申请日：2014-01-30

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

Inventor： Adam L. Ghozeil ,  Scott A. Linn ,  David Maxfield ,  Andrew Van Brocklin

IPC: B41J2/175

CPC classification number: B41J2/17566 ,  B41J2/1404 ,  B41J2002/14354 ,  B41J2002/17579

Abstract: In an implementation, a printhead includes a nozzle and a fluid channel. A sensor plate is located within the fluid channel. An impedance measurement circuit is coupled to the sensor plate to measure impedance of fluid within the channel during a fluid movement event that moves fluid past the sensor plate.

Abstract translation: 在一个实施方案中，打印头包括喷嘴和流体通道。 传感器板位于流体通道内。 阻抗测量电路耦合到传感器板，以在流体移动事件期间测量流体在通道内的阻抗，从而使流体流过传感器板。

公开(公告)号：US20160279931A1

公开(公告)日：2016-09-29

申请号：US15083258

申请日：2016-03-28

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

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

IPC: B41J2/045

CPC classification number: B41J2/04573 ,  B41J2/0451 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/14153 ,  B41J2/17566 ,  B41J2002/17579 ,  B41J2202/07 ,  G01F23/185

Abstract: An inkjet printhead device, fluid ejection device and method thereof are disclosed. 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, and a channel to establish fluid communication between the fluid supply chamber and the ejection chamber. The fluid ejection device also includes 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 at least ejection chamber.

Abstract translation: 公开了喷墨打印头装置，流体喷射装置及其方法。 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，以及用于在流体供应室和喷射室之间建立流体连通的通道。 流体喷射装置还包括具有传感器板的压力传感器单元，该传感器板输出对应于至少喷射室中的流体的横截面面积的电压值。

公开(公告)号：US20150062222A1

公开(公告)日：2015-03-05

申请号：US14014979

申请日：2013-08-30

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

Inventor： Adam L. Ghozeil ,  Robert N K Browning

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/0458 ,  B41J2/04515 ,  B41J2/04541 ,  B41J2/04563 ,  B41J2/04573 ,  B41J2/04588

Abstract: A fluid ejection device is described. In an example, the fluid ejection device includes a substrate having a chamber formed thereon to contain a fluid. A thin-film stack is formed on the substrate having a resistor formed under the chamber. A transistor is formed in the substrate and coupled to the resistor. A circuit is formed in the substrate coupled to a gate of the transistor to selectively cause the transistor either to supply a firing current to the resistor for ejecting the fluid from the chamber or to dissipate power to warm the device.

Abstract translation: 描述了流体喷射装置。 在一个示例中，流体喷射装置包括其上形成有容纳流体的腔室的基底。 在具有形成在室下方的电阻器的基板上形成薄膜堆叠。 晶体管形成在衬底中并耦合到电阻器。 在耦合到晶体管的栅极的衬底中形成电路，以选择性地使晶体管向电阻器提供点火电流，用于从腔室喷出流体或者散发功率以加热器件。