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公开(公告)号：US10336089B2
公开(公告)日：2019-07-02
申请号：US15940954
申请日：2018-03-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Adam L. Ghozeil , Scott A. Linn , David Maxfield , Andrew Van Brocklin
Abstract: In an implementation, a printhead includes a nozzle and a fluid channel. A sensor plate is located within the fluid channel. An impedance measurement circuit is coupled to the sensor plate to measure impedance of fluid within the channel during a fluid movement event that moves fluid past the sensor plate.
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公开(公告)号：US09956771B2
公开(公告)日：2018-05-01
申请号：US15705608
申请日：2017-09-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： David Maxfield
IPC: B41J2/045
CPC classification number: B41J2/04563 , B41J2/04585 , B41J2/04586 , B41J2/14072 , B41J2/14153
Abstract: An example provides a fluid ejection apparatus including a fluid feed slot to supply a fluid to a plurality of drop ejectors, a first rib at a first side of the fluid feed slot and supporting drop ejection circuitry to control ejection of drops of the fluid from the plurality of drop ejectors, and a second rib at a second side, opposite the first side, of the fluid feed slot supporting a thermal sensor to facilitate determination of a temperature of the first rib and the second rib.
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公开(公告)号：US20170021617A1
公开(公告)日：2017-01-26
申请号：US15039374
申请日：2013-11-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Adam L. Ghozeil , David Maxfield , Peter James Fricke
IPC: B41J2/14
CPC classification number: B41J2/1433 , B41J2/04541 , B41J2/0458 , B41J2/14072 , B41J2002/14491
Abstract: An example provides a fluid ejection apparatus including a fluid feed slot along a length of a print head die of the fluid ejection apparatus to supply a fluid to a plurality of drop ejectors, control circuitry adjacent to at least one side of the fluid feed slot to control ejection of drops of fluid from the plurality of drop ejectors, and a single power supply connector at an end of the print head die to supply power to the control circuitry.
Abstract translation: 一个实例提供了一种流体喷射装置，其包括沿着流体喷射装置的打印头模具的长度的流体供给槽，以将流体供应到多个液滴喷射器，与流体供给槽的至少一侧相邻的控制电路 控制多个液滴喷射器中的液滴的喷射，以及在打印头模具的端部处的单个电源连接器，以向控制电路供电。
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公开(公告)号：US20170008285A1
公开(公告)日：2017-01-12
申请号：US15262248
申请日：2016-09-12
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , Eric T. Martin , Alexander Govyadinov , David Maxfield
IPC: B41J2/14
CPC classification number: B41J2/14153 , B41J2/0451 , B41J2/04555 , B41J2/0458 , B41J2/04586 , B41J29/393 , B41J2002/14354
Abstract: A method for determining an issue in an inkjet nozzle with impedance measurements, includes taking a first impedance measurement to detect a drive bubble with an impedance sensor; and taking a second impedance measurement to detect said drive bubble with said impedance sensor after said first impedance measurement.
Abstract translation: 一种用于通过阻抗测量确定喷墨喷嘴中的问题的方法，包括采用第一阻抗测量来利用阻抗传感器检测驱动气泡; 以及在所述第一阻抗测量之后，用所述阻抗传感器进行第二阻抗测量来检测所述驱动气泡。
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公开(公告)号：US20190111676A1
公开(公告)日：2019-04-18
申请号：US16210143
申请日：2018-12-05
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Gerard Alzona , David Maxfield , Dustin W. Blair , Sterling Chaffins , Andrew L. Van Brocklin
Abstract: In some examples, a controller receives impedance sensor values from an impedance sensor in a printhead, determines whether the impedance sensor values correlate to a production of an effective drive bubble for the printhead, and issues a command to modify a firing parameter for a fluid ejector of the printhead based on the impedance sensor values.
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Patent Agency Ranking
公开(公告)号：US20180297370A1
公开(公告)日：2018-10-18
申请号：US15940954
申请日：2018-03-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Adam L. Ghozeil , Scott A. Linn , David Maxfield , Andrew Van Brocklin
CPC classification number: B41J2/17566 , B41J2/1404 , B41J2002/14354 , B41J2002/17579
Abstract: In an implementation, a printhead includes a nozzle and a fluid channel. A sensor plate is located within the fluid channel. An impedance measurement circuit is coupled to the sensor plate to measure impedance of fluid within the channel during a fluid movement event that moves fluid past the sensor plate.
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公开(公告)号：US09987850B2
公开(公告)日：2018-06-05
申请号：US15434523
申请日：2017-02-16
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： David Maxfield , Sean P. McClelland
CPC classification number: B41J2/17523 , B41J2/1433 , B41J2/17553 , B41J2/2103 , B41J2002/14419
Abstract: A printhead assembly is provided, the printhead assembly including a printhead die, a black fluid slot formed in the printhead die to deliver black printing fluid, and a color fluid slot formed in the printhead die to deliver color printing fluid.
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公开(公告)号：US09962949B2
公开(公告)日：2018-05-08
申请号：US15113384
申请日：2014-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Adam L. Ghozeil , Scott A. Linn , David Maxfield , Andrew Van Brocklin
CPC classification number: B41J2/17566 , B41J2/1404 , B41J2002/14354 , B41J2002/17579
Abstract: In an implementation, a printhead includes a nozzle and a fluid channel. A sensor plate is located within the fluid channel. An impedance measurement circuit is coupled to the sensor plate to measure impedance of fluid within the channel during a fluid movement event that moves fluid past the sensor plate.
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公开(公告)号：US20180001634A1
公开(公告)日：2018-01-04
申请号：US15706315
申请日：2017-09-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Adam L. Ghozeil , David Maxfield , Peter James Fricke
CPC classification number: B41J2/1433 , B41J2/04541 , B41J2/0458 , B41J2/14072 , B41J2002/14491
Abstract: An example provides a fluid ejection apparatus including a fluid feed slot along a length of a print head die of the fluid ejection apparatus to supply a fluid to a plurality of drop ejectors, control circuitry adjacent to at least one side of the fluid feed slot to control ejection of drops of fluid from the plurality of drop ejectors, and a single power supply connector at an end of the print head die to supply power to the control circuitry.
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公开(公告)号：US09796181B2
公开(公告)日：2017-10-24
申请号：US15039374
申请日：2013-11-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Adam L. Ghozeil , David Maxfield , Peter James Fricke
CPC classification number: B41J2/1433 , B41J2/04541 , B41J2/0458 , B41J2/14072 , B41J2002/14491
Abstract: An example provides a fluid ejection apparatus including a fluid feed slot along a length of a print head die of the fluid ejection apparatus to supply a fluid to a plurality of drop ejectors, control circuitry adjacent to at least one side of the fluid feed slot to control ejection of drops of fluid from the plurality of drop ejectors, and a single power supply connector at an end of the print head die to supply power to the control circuitry.
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