公开(公告)号：US20230382109A1

公开(公告)日：2023-11-30

申请号：US18032797

申请日：2020-10-23

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

Inventor： Eric T. Martin ,  James R. Przybyla ,  Garrett E. Clark

IPC: B41J2/14 ,  B41J2/145

CPC classification number: B41J2/1404 ,  B41J2/145 ,  B41J2202/12 ,  B41J2202/13

Abstract: In some examples, a fluidic die includes an arrangement of fluidic elements to dispense a fluid, where each fluidic element of the fluidic elements includes a fluidic actuator and a fluid chamber. The fluidic die includes an array of fluid feed holes in a plurality of dimensions to communicate the fluid with the fluidic elements, where each of multiple fluid feed holes along a first dimension of the plurality of dimensions is distinct from multiple fluid feed holes along a second dimension of the plurality of dimensions. The fluidic die includes circuit elements interspersed in regions between the fluidic elements along different axes of the fluidic die, where each circuit element of the circuit elements includes an active device. The fluidic elements and the circuit elements are formed on a common substrate.

公开(公告)号：US20230202167A1

公开(公告)日：2023-06-29

申请号：US18114148

申请日：2023-02-24

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

Inventor： Sean P. McClelland ,  Donald J. Milligan ,  Eric T. Martin

IPC: B41J2/045

CPC classification number: B41J2/0458 ,  B41J2/04543 ,  B41J2/04541 ,  B41J2002/14467

Abstract: A fluidic die may include a substrate supporting a fluid actuator address line and first and second groups of fluid actuators connected to the fluid actuator address line. The first group of fluid actuators may include first and second types of fluid actuators having different operating characteristics. The second group of fluid actuators may include the first and the second types of fluid actuators. The fluid actuators of the first and second groups have addresses such that a fluid actuator of the first type in the first group and a fluid actuator of the second type in the second group are both enabled in response to a single enabling event on the fluid actuator address line.

公开(公告)号：US20230191779A1

公开(公告)日：2023-06-22

申请号：US18113610

申请日：2023-02-23

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

Inventor： Sean P. McClelland ,  Donald J. Milligan ,  Eric T. Martin

IPC: B41J2/045

CPC classification number: B41J2/0458 ,  B41J2/04543 ,  B41J2/04541 ,  B41J2002/14467

Abstract: A fluidic die may include a substrate supporting a fluid actuator address line and first and second groups of fluid actuators connected to the fluid actuator address line. The first group of fluid actuators may include first and second types of fluid actuators having different operating characteristics. The second group of fluid actuators may include the first and the second types of fluid actuators. The fluid actuators of the first and second groups have addresses such that a fluid actuator of the first type in the first group and a fluid actuator of the second type in the second group are both enabled in response to a single enabling event on the fluid actuator address line.

公开(公告)号：US20220396070A1

公开(公告)日：2022-12-15

申请号：US17772773

申请日：2019-11-20

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

Inventor： Eric T. Martin ,  Berkeley Fisher

IPC: B41J2/045

Abstract: An example input voltage agnostic fluidic device may include a level shifter to adjust an input voltage of control signals received at an input interconnect to a voltage level that is within operational thresholds of on-chip devices of the input voltage agnostic fluidic device. A clamp circuit may be provided to clamp circuitry downstream of the level shifter below the operational threshold of the on-chip device.

公开(公告)号：US20220118782A1

公开(公告)日：2022-04-21

申请号：US17312711

申请日：2019-07-09

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

Inventor： Daryl E. Anderson ,  Eric T. Martin

IPC: B41J29/393

Abstract: In some examples, a fluid dispensing device component includes an interface to communicate with a fluid dispensing system, and a controller to stream data of a fluid dispensing device through the interface to the fluid dispensing system in a first time interval. In a second time interval, the controller determines whether the fluid dispensing system has provided an indication that the fluid dispensing system is to send information to the fluid dispensing device component through the interface, and in response to determining that the fluid dispensing system has not provided the indication, continues to stream data of the fluid dispensing device through the interface to the fluid dispensing system.

公开(公告)号：US11225068B2

公开(公告)日：2022-01-18

申请号：US16970482

申请日：2018-04-06

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

Inventor： Daryl E. Anderson ,  Eric T. Martin

IPC: B41J2/175 ,  B41J2/125

Abstract: In some examples, a fluid dispensing device includes a plurality of fluidic actuators, activate data storage elements, and sense measurement storage elements. The fluid dispensing device includes a decoder to detect, based on a first activate indicator of the activate indicators, that a first fluidic actuator is to be activated, detect, based on a first sense measurement indicator of the sense measurement indicators that a sense measurement is to be performed on the first fluidic actuator, and in response to detecting that the first fluidic actuator is to be activated and the sense measurement is to be performed on the first fluidic actuator, 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.

公开(公告)号：US11186080B2

公开(公告)日：2021-11-30

申请号：US16603819

申请日：2018-04-06

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

Inventor： Eric T. Martin ,  Daryl E. Anderson

IPC: B41J2/045

Abstract: In some examples, a fluid dispensing device includes a plurality of fluidic actuators and a decoder. The decoder is to detect that an activated sense measurement is to be performed for a first fluidic actuator of the plurality of fluidic actuators in a first time group comprising a plurality of activation intervals for respective fluidic actuators. In response to detecting that the activated sense measurement is to be performed for the first fluidic actuator in the first time group, the decoder activates the first fluidic actuator in the first time group to perform the activated sense measurement for the first fluidic actuator, and suppresses an activation pulse to the first fluidic actuator in a second time group that follows the first time group to perform a reference measurement for the first fluidic actuator in the second time group, the second time group comprising a plurality of activation intervals for respective fluidic actuators.

公开(公告)号：US20210283904A1

公开(公告)日：2021-09-16

申请号：US16603819

申请日：2018-04-06

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

Inventor： Eric T. Martin ,  Daryl E. Anderson

IPC: B41J2/045

Abstract: In some examples, a fluid dispensing device includes a plurality of fluidic actuators and a decoder. The decoder is to detect that an activated sense measurement is to be performed for a first fluidic actuator of the plurality of fluidic actuators in a first time group comprising a plurality of activation intervals for respective fluidic actuators. In response to detecting that the activated sense measurement is to be performed for the first fluidic actuator in the first time group, the decoder activates the first fluidic actuator in the first time group to perform the activated sense measurement for the first fluidic actuator, and suppresses an activation pulse to the first fluidic actuator in a second time group that follows the first time group to perform a reference measurement for the first fluidic actuator in the second time group, the second time group comprising a plurality of activation intervals for respective fluidic actuators.

公开(公告)号：US10688785B2

公开(公告)日：2020-06-23

申请号：US16284108

申请日：2019-02-25

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

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

IPC: B41J2/14 ,  B41J2/175

Abstract: According to an example, a printing system may include a drop ejecting element and a fluid circulating element corresponding to the drop ejecting element. The printing system may also include a logic device that is to receive a data stream addressed to the drop ejecting element, determine whether the data stream indicates that the drop ejecting element is to be energized, and in response to a determination that the data stream does not indicate that the drop ejecting element is to be energized, energize the fluid circulating element.

公开(公告)号：US20200164639A1

公开(公告)日：2020-05-28

申请号：US16778197

申请日：2020-01-31

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

Inventor： Eric T. Martin ,  Chris Bakker

IPC: B41J2/045 ,  B41J2/14

Abstract: Fluid ejection devices with multiple activation modes are disclosed. An example printhead assembly includes a fluid ejection nozzle, a first resistor fluidically coupled to the fluid ejection nozzle, and a second resistor fluidically coupled to the fluid ejection nozzle. The example printhead also includes an addressing circuit to receive a nozzle address and an activation mode to activate the fluid ejection nozzle. The activation mode determines which of the first resistor and the second resistor are to be energized.