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公开(公告)号:US20200016892A1
公开(公告)日:2020-01-16
申请号:US16483088
申请日:2017-04-06
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Craig Olbrich , Joseph M Torgerson
IPC: B41J2/045
Abstract: Examples include a fluid ejection system. The fluid ejection system comprises a fluid supply reservoir, a fluid ejection die, a fluid delivery subsystem, and a control engine. The fluid ejection die comprises nozzles to eject fluid and at least one temperature sensor disposed on the die to sense a temperature of the fluid ejection die. The fluid delivery subsystem fluidly connects the fluid reservoir and the fluid ejection die, and the fluid delivery subsystem comprises at least one valve to regulate conveyance of fluid from the fluid supply reservoir to the fluid ejection die. The control engine controls the at least one valve to thereby regulate conveyance of fluid from the fluid supply reservoir to the fluid ejection die based at least in part on the temperature of the fluid ejection die.
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公开(公告)号:US10343398B2
公开(公告)日:2019-07-09
申请号:US15896292
申请日:2018-02-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Jeffrey A. Nielsen , Craig Olbrich , Richard W. Seaver , David R. Otis, Jr.
Abstract: An inkjet material dispenser system includes a printhead member. According to one exemplary embodiment, the printhead member includes at least one drop ejector including an insulating stack layer and a top orifice surface defining an orifice, wherein a ratio of a diameter of the orifice to a height of the insulating stack layer (O/L ratio) is at least 1.0.
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公开(公告)号:US10336090B2
公开(公告)日:2019-07-02
申请号:US15921614
申请日:2018-03-14
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Alexander Govyadinov , Craig Olbrich , Brian M. Taff
Abstract: A fluid ejection device may include a discharge port, an energy generating element to discharge liquid through the discharge port, a first liquid supply on a first side of the discharge port, a second liquid supply on a second side of the discharge port opposite the first side, a first liquid flow path extending from the first liquid supply to the discharge port, a second liquid flow path extending from the second liquid supply to the discharge port and a fluid displacement actuator in the first liquid flow path.
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公开(公告)号:US11654678B2
公开(公告)日:2023-05-23
申请号:US16483084
申请日:2017-04-06
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Craig Olbrich , Joseph M Torgerson
CPC classification number: B41J2/072 , B41J2/04563 , B41J2/125 , B41J2002/14354
Abstract: Examples include a fluid ejection device. The fluid ejection device comprises a fluid ejection die and a control engine. The fluid ejection die comprises nozzles to eject fluid drops and a temperature sensors disposed on the die to sense temperatures associated with nozzles. The control engine determines at least one nozzle characteristic of at least one respective nozzle based at least in part on a temperature change associated with the at least one respective nozzle corresponding to at least one ejection event.
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公开(公告)号:US11446925B2
公开(公告)日:2022-09-20
申请号:US16483088
申请日:2017-04-06
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Craig Olbrich , Joseph M Torgerson
Abstract: Examples include a fluid ejection system. The fluid ejection system comprises a fluid supply reservoir, a fluid ejection die, a fluid delivery subsystem, and a control engine. The fluid ejection die comprises nozzles to eject fluid and at least one temperature sensor disposed on the die to sense a temperature of the fluid ejection die. The fluid delivery subsystem fluidly connects the fluid reservoir and the fluid ejection die, and the fluid delivery subsystem comprises at least one valve to regulate conveyance of fluid from the fluid supply reservoir to the fluid ejection die. The control engine controls the at least one valve to thereby regulate conveyance of fluid from the fluid supply reservoir to the fluid ejection die based at least in part on the temperature of the fluid ejection die.
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公开(公告)号:US11278928B2
公开(公告)日:2022-03-22
申请号:US16766246
申请日:2018-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Roberto A. Pugliese , Jeffrey A. Nielsen , Christie Dudenhoefer , Craig Olbrich , Debora J. Thomas
Abstract: An alignment system, in an example, may include a substrate comprising at least one nanowell, at least one fluid ejection device comprising at least one die, the at least one die comprising as least one nozzle, and an alignment device to align the at least one nozzle to the at least one nanowell.
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公开(公告)号:US20210011042A1
公开(公告)日:2021-01-14
申请号:US16500066
申请日:2017-07-18
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Craig Olbrich , Heather B. Louderback , Christie Dudenhoefer , Dennis R. Esterberg
IPC: G01N35/10
Abstract: An integrated cartridge service station may include a reagent module comprising at least one reagent ejection device, and a service module integrated with the reagent module. The service module may include at least one service device. The reagent module and the service module are movable with respect to one another within a reagent dispensing system. The at least one reagent ejection device is movable between an in-line position and an off-line position within the reagent dispensing system.
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公开(公告)号:US20180201024A1
公开(公告)日:2018-07-19
申请号:US15921614
申请日:2018-03-14
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Alexander Govyadinov , Craig Olbrich , Brian M. Taff
CPC classification number: B41J2/17596 , B41J2/1404 , B41J2/14145 , B41J2/1433 , B41J2/15 , B41J2/175 , B41J2002/14387 , B41J2002/14467 , B41J2202/12
Abstract: A fluid ejection device may include a discharge port, an energy generating element to discharge liquid through the discharge port, a first liquid supply on a first side of the discharge port, a second liquid supply on a second side of the discharge port opposite the first side, a first liquid flow path extending from the first liquid supply to the discharge port, a second liquid flow path extending from the second liquid supply to the discharge port and a fluid displacement actuator in the first liquid flow path.
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公开(公告)号:US20170157945A1
公开(公告)日:2017-06-08
申请号:US15433827
申请日:2017-02-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Alexander Govyadinov , Craig Olbrich , Brian M. Taff
IPC: B41J2/175
CPC classification number: B41J2/17596 , B41J2/1404 , B41J2/14145 , B41J2/1433 , B41J2/15 , B41J2/175 , B41J2002/14387 , B41J2002/14467 , B41J2202/12
Abstract: In an embodiment, a fluid ejection device includes a die substrate having first and second fluid slots along opposite substrate sides and separated by a substrate central region. First and second internal columns of closed chambers are associated with the first and second slots, respectively, and the internal columns are separated by the central region. Fluidic channels extending across the central region fluidically couple closed chambers from the first internal column with closed chambers from the second internal column. Pump actuators in each closed chamber pump fluid through the channels from slot to slot.
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公开(公告)号:US09623659B2
公开(公告)日:2017-04-18
申请号:US15252433
申请日:2016-08-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Alexander Govyadinov , Craig Olbrich , Brian M. Taff
CPC classification number: B41J2/17596 , B41J2/1404 , B41J2/14145 , B41J2/1433 , B41J2/15 , B41J2/175 , B41J2002/14387 , B41J2002/14467 , B41J2202/12
Abstract: In an embodiment, a fluid ejection device includes a die substrate having first and second fluid slots along opposite substrate sides and separated by a substrate central region. First and second internal columns of closed chambers are associated with the first and second slots, respectively, and the internal columns are separated by the central region. Fluidic channels extending across the central region fluidically couple closed chambers from the first internal column with closed chambers from the second internal column. Pump actuators in each closed chamber pump fluid through the channels from slot to slot.
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