公开(公告)号：US20170096004A1

公开(公告)日：2017-04-06

申请号：US15311772

申请日：2014-05-30

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

Inventor： Daniel D Dowell

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/155 ,  B41J2002/14419 ,  B41J2202/19 ,  B41J2202/20

Abstract: In one example, a printhead assembly module includes an upstream row of printheads and a downstream row of printheads. The upstream and downstream rows of printheads are offset from one another such that a printhead in the upstream row extends past the downstream row at one end of the module and a printhead in the downstream row extends past the upstream row at the other end of the module.

公开(公告)号：US20170087847A1

公开(公告)日：2017-03-30

申请号：US15311902

申请日：2014-05-30

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

Inventor： Ronald J Ender ,  Daniel D Dowell

IPC: B41J2/165

CPC classification number: B41J2/16505 ,  B41J2/1433 ,  B41J2/145 ,  B41J2/155 ,  B41J11/005 ,  B41J2002/16502 ,  B41J2202/19 ,  B41J2202/20

Abstract: In one example, a shroud to protect a group of printheads in a printhead assembly includes openings through which the printheads are exposed when the shroud is installed on the printhead assembly and an elongated protrusion along an exterior surface next to the openings to block print media from contacting the exposed part of the printheads during printing when the shroud is installed on the printhead assembly.

公开(公告)号：US12138937B2

公开(公告)日：2024-11-12

申请号：US17928276

申请日：2020-05-29

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

Inventor： Daniel D Dowell ,  Ronald Ender ,  Seth Haddix ,  Jon A Crabtree ,  Jeffrey F Bell

IPC: B41J2/175 ,  B41J2/14 ,  B41J2/18 ,  B41J2/19

Abstract: An example printing fluid pen comprises a plurality of fluid ports, including an inlet port to direct fluid from a fluid reservoir to a fluid ejection device, and a recirculation port to direct fluid from the fluid ejection device out of the inkjet pen. The example pen also includes a plurality of parallel fluid pressure regulators fluidly coupled with the inlet port, each of the plurality of parallel fluid pressure regulators to receive fluid from the inlet fluid port.

公开(公告)号：US09975339B2

公开(公告)日：2018-05-22

申请号：US15311902

申请日：2014-05-30

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

Inventor： Ronald J Ender ,  Daniel D Dowell

IPC: B41J2/165

CPC classification number: B41J2/16505 ,  B41J2/1433 ,  B41J2/145 ,  B41J2/155 ,  B41J11/005 ,  B41J2002/16502 ,  B41J2202/19 ,  B41J2202/20

Abstract: In one example, a shroud to protect a group of printheads in a printhead assembly includes openings through which the printheads are exposed when the shroud is installed on the printhead assembly and an elongated protrusion along an exterior surface next to the openings to block print media from contacting the exposed part of the printheads during printing when the shroud is installed on the printhead assembly.

公开(公告)号：US20230202184A1

公开(公告)日：2023-06-29

申请号：US17928276

申请日：2020-05-29

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

Inventor： Daniel D Dowell ,  Ronald Ender ,  Seth Haddix ,  Jon A Crabtree ,  Jeffrey F Bell

IPC: B41J2/175 ,  B41J2/14 ,  B41J2/19

CPC classification number: B41J2/17563 ,  B41J2/1404 ,  B41J2/14145 ,  B41J2/19 ,  B41J2202/12

Abstract: An example printing fluid pen comprises a plurality of fluid ports, including an inlet port to direct fluid from a fluid reservoir to a fluid ejection device, and a recirculation port to direct fluid from the fluid ejection device out of the inkjet pen. The example pen also includes a plurality of parallel fluid pressure regulators fluidly coupled with the inlet port, each of the plurality of parallel fluid pressure regulators to receive fluid from the inlet fluid port.

公开(公告)号：US09987845B2

公开(公告)日：2018-06-05

申请号：US15311772

申请日：2014-05-30

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

Inventor： Daniel D Dowell

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/155 ,  B41J2002/14419 ,  B41J2202/19 ,  B41J2202/20

Abstract: In one example, a printhead assembly module includes an upstream row of printheads and a downstream row of printheads. The upstream and downstream rows of printheads are offset from one another such that a printhead in the upstream row extends past the downstream row at one end of the module and a printhead in the downstream row extends past the upstream row at the other end of the module.