公开(公告)号：US09776399B2

公开(公告)日：2017-10-03

申请号：US15308055

申请日：2014-05-30

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

Inventor： Peter James Fricke ,  Scott A Linn ,  Luca Molinari

IPC: B41J2/045

CPC classification number: B41J2/04541 ,  B41J2/04543 ,  B41J2/04558 ,  B41J2/0456 ,  B41J2/04561 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/0459

Abstract: In an example, a piezoelectric printhead assembly includes a micro-electro mechanical system (MEMS) die including a plurality of nozzles. An application-specific integrated circuit (ASIC) die is coupled to the MEMS die by a plurality of wire bonds, wherein each of the wire bonds corresponds to a respective nozzle of the plurality of nozzles. An arbitrary data generator (ADG) on the ASIC is to provide a digital data sequence, and a phase selector is to enable multiple data read operations of the ADG to generate multiple delayed digital data sequences.

公开(公告)号：US20170057224A1

公开(公告)日：2017-03-02

申请号：US15308055

申请日：2014-05-30

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

Inventor： Peter James Fricke ,  Scott A Linn ,  Luca Molinari

IPC: B41J2/045

CPC classification number: B41J2/04541 ,  B41J2/04543 ,  B41J2/04558 ,  B41J2/0456 ,  B41J2/04561 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/0459

Abstract: In an example, a piezoelectric printhead assembly includes a micro-electro mechanical system (MEMS) die including a plurality of nozzles. An application-specific integrated circuit (ASIC) die is coupled to the MEMS die by a plurality of wire bonds, wherein each of the wire bonds corresponds to a respective nozzle of the plurality of nozzles. An arbitrary data generator (ADG) on the ASIC is to provide a digital data sequence, and a phase selector is to enable multiple data read operations of the ADG to generate multiple delayed digital data sequences.

Abstract translation: 在一个示例中，压电打印头组件包括包括多个喷嘴的微机电系统（MEMS）模具。 专用集成电路（ASIC）管芯通过多个引线接合耦合到MEMS管芯，其中每个引线接合对应于多个喷嘴的相应喷嘴。 ASIC上的任意数据发生器（ADG）是提供数字数据序列，并且相位选择器是使得ADG的多个数据读取操作能够产生多个延迟的数字数据序列。

公开(公告)号：US10926535B2

公开(公告)日：2021-02-23

申请号：US16618940

申请日：2017-07-12

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

Inventor： Scott A Linn ,  Vincent C Korthuis ,  James M Gardner

IPC: B41J2/045

Abstract: A fluidic die may include a fluid actuator comprising an electrical resistor, a power node to supply electrical current to the resistor to drive the fluid actuator, a low side switch transistor connected to a ground node and having a gate to control the flow of electrical current through the resistor, a voltage regulator to receive electrical power from the power node and to output a predetermined voltage and a level shifter to control to output a low side switch transistor gate drive voltage using the predetermined voltage and based upon control signals to control the gate to control fluid displacement by the fluid actuator. The predetermined voltage is greater than a voltage of the control signals and is independent of a resistance of the ground node.

公开(公告)号：US20190030888A1

公开(公告)日：2019-01-31

申请号：US16061215

申请日：2016-04-14

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

Inventor： Vincent C. Korthuis ,  Eric T Martin ,  Michael W. Cumbie ,  Scott A Linn ,  Pere Esterri

IPC: B41J2/045

CPC classification number: B41J2/04591 ,  B41J2/04543 ,  B41J2/0458 ,  B41J2/04598

Abstract: First electronics may determine a count of bubble jet resistors to be fired by a fire pulse group. A fire pulse generator may generate a fire pulse train for bubble jet resistors, the fire pulse train comprising a precursor pulse and a firing pulse separated by a dead time. Second electronics may adjust a width of the fire pulse for the bubble jet resistors of the fire pulse group by maintaining a first edge of the fire pulse relative to the precursor pulse and adjusting a second edge of the fire pulse relative to the precursor pulse based upon the determined count for the fire pulse group.

公开(公告)号：US10124579B2

公开(公告)日：2018-11-13

申请号：US15543420

申请日：2015-01-30

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

Inventor： Daryl E Anderson ,  George H Corrigan ,  Scott A Linn

IPC: B41J2/045 ,  B41J2/14 ,  B41J2/175 ,  B41J2/145

Abstract: An inkjet printhead including a plurality of printhead dies, each printhead die including at least one crack sense resistor, at least one analog bus connected to each printhead die, and a controller separate from the plurality of printhead dies. The controller is configured to provide a known current to the at least one crack sense resistor of each printhead die in a selectable pattern via the at least one analog bus and to determine whether the printhead dies are cracked based on resulting voltages produced on the at least one analog bus.

公开(公告)号：US10046562B2

公开(公告)日：2018-08-14

申请号：US15518306

申请日：2014-10-28

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

Inventor： Peter James Fricke ,  Michael W Cumbie ,  Scott A Linn

IPC: B41J29/38 ,  B41J2/15 ,  B41J2/045

Abstract: A wide array printhead module includes a plurality of printhead die, each of the printhead die includes a number of nozzles. The nozzles form a number of primitives. A nozzle firing heater is coupled to each of the nozzles. An application specific integrated circuit (ASIC) controls a number of activation pluses that activate the nozzle firing heaters for each of the nozzles associated with the primitives. The activation pulses are delayed between each of the primitives via internal delays and external delays to reduce peak power demands of the printhead die. The ASIC determines the internal delays within each printhead die.

公开(公告)号：US20170066235A1

公开(公告)日：2017-03-09

申请号：US15308064

申请日：2014-05-30

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

Inventor： Peter James Fricke ,  Scott A Linn ,  Luca Molinari

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04541 ,  B41J2/04543 ,  B41J2/04558 ,  B41J2/0456 ,  B41J2/04561 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/0459 ,  B41J2/14201

Abstract: In an example, a piezoelectric printhead assembly includes a micro-electro mechanical system (MEMS) die including a plurality of nozzles. An application-specific integrated circuit (ASIC) die is coupled to the MEMS die by a plurality of wire bonds, wherein each of the wire bonds corresponds to a respective nozzle of the plurality of nozzles. An arbitrary data generator (ADG) on the ASIC is to provide a digital data sequence, and a multiplier is to scale multiple nozzles of the plurality of nozzles.

Abstract translation: 在一个示例中，压电打印头组件包括包括多个喷嘴的微机电系统（MEMS）模具。 专用集成电路（ASIC）管芯通过多个引线接合耦合到MEMS管芯，其中每个引线接合对应于多个喷嘴的相应喷嘴。 ASIC上的任意数据发生器（ADG）是提供数字数据序列，乘法器是缩放多个喷嘴的多个喷嘴。