公开(公告)号：US11090942B2

公开(公告)日：2021-08-17

申请号：US16486930

申请日：2017-04-24

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

Inventor： James Gardner ,  Berkeley Fisher ,  Andrew Koll

IPC: B41J2/165

Abstract: A fluid ejection system includes a fluid ejection die, a service station assembly, and a controller. The fluid ejection die includes at least one strain gauge sensor to sense strain. The service station assembly is to service the fluid ejection die. The controller is to receive the sensed strain from the at least one strain gauge sensor during servicing of the fluid ejection die and adjust or stop servicing of the fluid ejection die in response to the sensed strain exceeding a servicing threshold.

公开(公告)号：US20210129540A1

公开(公告)日：2021-05-06

申请号：US16486930

申请日：2017-04-24

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

Inventor： James Gardner ,  Berkeley Fisher ,  Andrew Koll

IPC: B41J2/165

Abstract: A fluid ejection system includes a fluid ejection die, a service station assembly, and a controller. The fluid ejection die includes at least one strain gauge sensor to sense strain. The service station assembly is to service the fluid ejection die. The controller is to receive the sensed strain from the at least one strain gauge sensor during servicing of the fluid ejection die and adjust or stop servicing of the fluid ejection die in response to the sensed strain exceeding a servicing threshold.

公开(公告)号：US11135840B2

公开(公告)日：2021-10-05

申请号：US16490838

申请日：2017-04-24

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

Inventor： James Gardner ,  Berkeley Fisher ,  Andrew Koll

IPC: B41J2/14

Abstract: A fluid ejection system includes a fluid ejection die and a controller. The fluid ejection die includes a plurality of nozzles to eject fluid drops and a plurality of strain gauge sensors to sense strain within the fluid ejection die. The controller is to receive the sensed strain from each strain gauge sensor to determine a status of the fluid ejection die.

公开(公告)号：US20200031127A1

公开(公告)日：2020-01-30

申请号：US16490838

申请日：2017-04-24

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

Inventor： James Gardner ,  Berkeley Fisher ,  Andrew Koll

IPC: B41J2/14

Abstract: A fluid ejection system includes a fluid ejection die and a controller. The fluid ejection die includes a plurality of nozzles to eject fluid drops and a plurality of strain gauge sensors to sense strain within the fluid ejection die. The controller is to receive the sensed strain from each strain gauge sensor to determine a status of the fluid ejection die.