公开(公告)号：US20180229499A1

公开(公告)日：2018-08-16

申请号：US15516436

申请日：2014-10-29

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

Inventor： Alexander Govyadinov ,  Paul A Richards

IPC: B41J2/14 ,  B41J2/175

CPC classification number: B41J2/14056 ,  B41J2/1404 ,  B41J2/14088 ,  B41J2/175 ,  B41J2002/14467 ,  B41J2202/12

Abstract: A fluid ejection device includes a fluid slot, a fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the fluid ejection chamber, a fluid circulation channel communicated at one end with the fluid slot and communicated at another end with the fluid ejection chamber, a fluid circulating element within the fluid circulation channel, and a channel wall separating the fluid ejection chamber and the fluid circulation channel. The fluid circulation channel includes a channel loop, and a width of the channel wall is based on a width of the channel loop and a width of the fluid ejection chamber.

公开(公告)号：US20180015731A1

公开(公告)日：2018-01-18

申请号：US15541963

申请日：2015-01-29

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

Inventor： Nick McGuinness ,  Lawrence H White ,  Paul A Richards

IPC: B41J2/19 ,  B41J2/18 ,  B41J2/14

CPC classification number: B41J2/19 ,  B41J2/1404 ,  B41J2/1433 ,  B41J2/175 ,  B41J2/18 ,  B41J2002/14467 ,  B41J2202/11

Abstract: A fluid ejection device includes a fluid slot, a fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the fluid ejection chamber, a fluid circulation channel communicated at a first end with the fluid slot and communicated at a second end with the fluid ejection chamber, a fluid circulating element within the fluid circulation channel, and a particle tolerant architecture within the fluid circulation channel at the second end.

公开(公告)号：US20210023853A1

公开(公告)日：2021-01-28

申请号：US17068443

申请日：2020-10-12

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

Inventor： Nick McGuinness ,  Lawrence H White ,  Paul A Richards

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

Abstract: A fluid ejection system may include a media transport assembly and a printhead assembly having a fluid ejection device opposite the media transport assembly. The fluid ejection device may include a drop ejecting element and a fluid ejection chamber containing the drop ejection element. The fluid ejection chamber has an inlet and an outlet for fluid circulation through the fluid ejection chamber across the drop ejecting element. A particle tolerant architecture is between the inlet and the drop ejecting element.

公开(公告)号：US11440331B2

公开(公告)日：2022-09-13

申请号：US17068443

申请日：2020-10-12

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

Inventor： Nick McGuinness ,  Lawrence H White ,  Paul A Richards

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

Abstract: A fluid ejection system may include a media transport assembly and a printhead assembly having a fluid ejection device opposite the media transport assembly. The fluid ejection device may include a drop ejecting element and a fluid ejection chamber containing the drop ejection element. The fluid ejection chamber has an inlet and an outlet for fluid circulation through the fluid ejection chamber across the drop ejecting element. A particle tolerant architecture is between the inlet and the drop ejecting element.

公开(公告)号：US10828908B2

公开(公告)日：2020-11-10

申请号：US16141907

申请日：2018-09-25

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

Inventor： Nick McGuinness ,  Lawrence H White ,  Paul A Richards

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

Abstract: A fluid ejection device includes a fluid slot, a fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the fluid ejection chamber, a fluid circulation channel communicated at a first end with the fluid slot and communicated at a second end with the fluid ejection chamber, and a particle tolerant architecture within the fluid circulation channel at the second end.

公开(公告)号：US10112407B2

公开(公告)日：2018-10-30

申请号：US15541963

申请日：2015-01-29

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

Inventor： Nick McGuinness ,  Lawrence H White ,  Paul A Richards

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

Abstract: A fluid ejection device includes a fluid slot, a fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the fluid ejection chamber, a fluid circulation channel communicated at a first end with the fluid slot and communicated at a second end with the fluid ejection chamber, a fluid circulating element within the fluid circulation channel, and a particle tolerant architecture within the fluid circulation channel at the second end.