公开(公告)号：US11034147B2

公开(公告)日：2021-06-15

申请号：US16474268

申请日：2017-04-14

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

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

IPC: B41J2/045 ,  B41J2/14

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：US20210197561A1

公开(公告)日：2021-07-01

申请号：US16492258

申请日：2017-04-24

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

Inventor： Sean P McClelland ,  Jesse Rushen ,  Larry H White

IPC: B41J2/14 ,  B41J2/16

Abstract: A fluid ejection die includes a fluid slot, laterally adjacent fluid ejection chambers each communicated with the fluid slot and having respective drop ejecting elements therein, and orifices each communicated with a respective one of the laterally adjacent fluid ejection chambers. The laterally adjacent fluid ejection chambers are spaced substantially a same distance from the fluid slot along a same side of the fluid slot, and the orifices communicated with the laterally adjacent fluid ejection chambers are spaced different distances from the fluid slot.

公开(公告)号：US10166778B2

公开(公告)日：2019-01-01

申请号：US15546823

申请日：2015-04-10

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

Inventor： Steve Rubart ,  Amy Gault ,  Sean P McClelland

IPC: B41J2/16 ,  B41J2/04 ,  B41J2/14

Abstract: An example of a method of forming a printhead includes forming first and second resistors over a first dielectric, forming a first portion of a second dielectric over the first and second resistors and a second portion of the second dielectric over an exposed inclined surface of the first dielectric in a region between the first and second resistors, forming a metal conductor over the first and second portions of the second dielectric, and removing an inclined segment of the metal conductor from an inclined surface of the second portion of the second dielectric to expose the inclined surface of the second portion of the second dielectric.

公开(公告)号：US10569544B2

公开(公告)日：2020-02-25

申请号：US16082317

申请日：2016-07-12

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

Inventor： Sean P McClelland

IPC: B41J2/14

Abstract: According to examples, a multi-layered nozzle fluid ejection device may include a first nozzle layer including a first nozzle layer thickness and a first nozzle layer orifice, and a second nozzle layer including a second nozzle layer thickness and a second nozzle layer orifice. The first nozzle layer orifice may include a first nozzle layer orifice dimension that is different than a second nozzle layer orifice dimension of the second nozzle layer orifice.

公开(公告)号：US20180022098A1

公开(公告)日：2018-01-25

申请号：US15546823

申请日：2015-04-10

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

Inventor： Steve Rubart ,  Amy Gault ,  Sean P McClelland

IPC: B41J2/16 ,  B41J2/14

CPC classification number: B41J2/1626 ,  B41J2/04 ,  B41J2/14129 ,  B41J2/16 ,  B41J2/1603 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2/164 ,  B41J2/1645

Abstract: An example of a method of forming a printhead includes forming first and second resistors over a first dielectric, forming a first portion of a second dielectric over the first and second resistors and a second portion of the second dielectric over an exposed inclined surface of the first dielectric in a region between the first and second resistors, forming a metal conductor over the first and second portions of the second dielectric, and removing an inclined segment of the metal conductor from an inclined surface of the second portion of the second dielectric to expose the inclined surface of the second portion of the second dielectric.

公开(公告)号：US11155082B2

公开(公告)日：2021-10-26

申请号：US16492258

申请日：2017-04-24

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

Inventor： Sean P McClelland ,  Jesse Rushen ,  Larry H White

IPC: B41J2/14 ,  B41J2/16

Abstract: A fluid ejection die includes a fluid slot, laterally adjacent fluid ejection chambers each communicated with the fluid slot and having respective drop ejecting elements therein, and orifices each communicated with a respective one of the laterally adjacent fluid ejection chambers. The laterally adjacent fluid ejection chambers are spaced substantially a same distance from the fluid slot along a same side of the fluid slot, and the orifices communicated with the laterally adjacent fluid ejection chambers are spaced different distances from the fluid slot.