公开(公告)号：US10906320B2

公开(公告)日：2021-02-02

申请号：US16399982

申请日：2019-04-30

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

Inventor： Benjamin H. Wood ,  Paul Mark Haines ,  Angela W. Bakkom ,  Anjan Prabhat Pattathil ,  Franklin D. Derryberry

IPC: B41J2/175 ,  B41J2/18

Abstract: A fluid ejection and circulation apparatus may include a fluid ejection die, the pressure regulator, a first standpipe, a second standpipe and a crossflow passage. The pressure regulator has a fluid chamber. The first standpipe is between the fluid chamber and the fluid ejection die. The first standpipe has a first port above the fluid ejection die. The second standpipe extends alongside the first standpipe. The second standpipe has a second port above the fluid ejection die. The crossflow passage connects the first standpipe and the second standpipe.

公开(公告)号：US20200346459A1

公开(公告)日：2020-11-05

申请号：US16399982

申请日：2019-04-30

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

Inventor： Benjamin H. Wood ,  Paul Mark Haines ,  Angela W. Bakkom ,  Anjan Prabhat Pattathil ,  Franklin D. Derryberry

IPC: B41J2/175

Abstract: A fluid ejection and circulation apparatus may include a fluid ejection die, the pressure regulator, a first standpipe, a second standpipe and a crossflow passage. The pressure regulator has a fluid chamber. The first standpipe is between the fluid chamber and the fluid ejection die. The first standpipe has a first port above the fluid ejection die. The second standpipe extends alongside the first standpipe. The second standpipe has a second port above the fluid ejection die. The crossflow passage connects the first standpipe and the second standpipe.