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公开(公告)号：US11230097B2
公开(公告)日：2022-01-25
申请号：US16834546
申请日：2020-03-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Paul A. Richards , Chris Bakker
Abstract: A fluid ejection device includes a fluid slot, at least one fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the at least one fluid ejection chamber, a fluid circulation channel communicated with the fluid slot and the at least one fluid ejection chamber, and a fluid circulating element communicated with the fluid circulation channel. The fluid circulating element is to provide on-demand circulation of fluid from the fluid slot through the fluid circulation channel and the at least one fluid ejection chamber.
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公开(公告)号：US10343396B2
公开(公告)日：2019-07-09
申请号：US16156950
申请日：2018-10-10
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Chris Bakker , Eric Martin , Adam L. Ghozeil
Abstract: A print component includes an address line, data lines, a fire pulse line, and a plurality of primitives, each primitive corresponding to a different data line and including a plurality of activation devices each corresponding to a different address of a set of addresses. A buffer receives data packets each including address data representative of an address of the set of addresses and print data for each primitive, places the print data on the respective data line of the corresponding primitive, and directs the address data to address logic which encodes the address data onto the address line in the order of reception of the address data by the buffer via the data packets. For each primitive, the activation device corresponding to the address on the address line activates a corresponding primitive function based on the corresponding print data when a fire pulse is present on the fire pulse line.
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公开(公告)号：US20150314599A1
公开(公告)日：2015-11-05
申请号：US14418664
申请日：2012-09-25
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Garrett E. Clark , Chris Bakker , Mark H. MacKenzie , Michele D. Friesen
CPC classification number: B41J2/1433 , B41J2/1404 , B41J2/14072 , B41J2/14145 , B41J2/21 , B41J2/2103 , B41J2/2128 , B41J2/2146 , B41J2002/14491
Abstract: A print head die is described. In one example, the print head die includes a substrate having liquid feed slots formed therein extending along a major dimension of the substrate and nozzles extending along opposite sides of each of the liquid feed slots; and electrical interconnect formed on the substrate along the major dimension adjacent a last one of the liquid feed slots. A first one of the liquid feed slots opposite the last liquid feed slot and farthest from the electrical interconnect supplies an ink using a higher drop volume than inks in other ones of the liquid feed slots. The last liquid feed slot supplies an ink having a higher contrast with the ink in the first liquid feed slot than with inks in other ones of the liquid feed slots.
Abstract translation: 描述打印头模具。 在一个示例中，打印头模具包括其中形成有沿着基板的主要尺寸延伸的液体进料槽的基板和沿每个液体进料槽的相对侧延伸的喷嘴; 以及沿着与最后一个液体进料槽相邻的主要尺寸在基底上形成的电互连。 与最后一个液体供给槽相对的最远的液体进料槽中的第一个液体进料槽与液体进料槽中的其它液体进料槽中的油墨相比，使用较高的液滴体积提供油墨。 最后的液体进料槽提供与第一液体进料槽中的油墨具有更高对比度的油墨，而不是其它液体进料槽中的油墨。
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公开(公告)号：US11123981B2
公开(公告)日：2021-09-21
申请号：US16778197
申请日：2020-01-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Eric T. Martin , Chris Bakker
Abstract: Fluid ejection devices with multiple activation modes are disclosed. An example printhead assembly includes a fluid ejection nozzle, a first resistor fluidically coupled to the fluid ejection nozzle, and a second resistor fluidically coupled to the fluid ejection nozzle. The example printhead also includes an addressing circuit to receive a nozzle address and an activation mode to activate the fluid ejection nozzle. The activation mode determines which of the first resistor and the second resistor are to be energized.
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公开(公告)号：US20200223225A1
公开(公告)日：2020-07-16
申请号：US16834546
申请日：2020-03-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Paul A. Richards , Chris Bakker
Abstract: A fluid ejection device includes a fluid slot, at least one fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the at least one fluid ejection chamber, a fluid circulation channel communicated with the fluid slot and the at least one fluid ejection chamber, and a fluid circulating element communicated with the fluid circulation channel. The fluid circulating element is to provide on-demand circulation of fluid from the fluid slot through the fluid circulation channel and the at least one fluid ejection chamber.
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Patent Agency Ranking
公开(公告)号：US20190255842A1
公开(公告)日：2019-08-22
申请号：US16400071
申请日：2019-05-01
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Eric T. Martin , Chris Bakker , James R. Przybyla
Abstract: In some examples, a circuit for a fluid ejection device includes an energy delivery device and a circuit layer. The circuit layer includes first and second activation devices connected to the energy delivery device, the first and second activation devices to activate the energy delivery device, first drive logic coupled to the first activation device, and second drive logic coupled to the second activation device. An interconnect layer couples a same address selection signal to the first drive logic and the second drive logic.
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公开(公告)号：US10286653B2
公开(公告)日：2019-05-14
申请号：US15526921
申请日：2014-12-02
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Eric T Martin , Chris Bakker , James R Przybyla
Abstract: Printheads and techniques for manufacturing printheads are disclosed. An example method includes forming drive circuit components in a circuit layer. The method also includes forming a fluidic device that causes fluid to be ejected from a nozzle. The method also includes forming an interconnect layer that couples the drive circuit components.
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公开(公告)号：US20180264808A1
公开(公告)日：2018-09-20
申请号：US15544053
申请日：2015-02-13
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Chris Bakker , Eric T Martin , Adam L Ghozeil
CPC classification number: B41J2/04588 , B41J2/04541 , B41J2/0455 , B41J2/0458 , B41J2/04581 , B41J2/04585 , B41J2/175 , B41J2/17546 , B41J2/18
Abstract: A printhead including an address line for communicating a set of addresses and a number of primitives, each primitive including a plurality of controllable activation devices coupled to the address line, each switch corresponding to at least one address of the set of addresses, each address corresponding to one of a number of primitive functions. A buffer receives a series of data packets, each data packet including address bits representative of one address of the set of addresses. Address logic receives the address bits PULSE POWER GROUND from the buffer, wherein for each data packet the address logic encodes the address represented by the address bits onto the address line, and wherein the at least one switch corresponding to the address activates the primitive function corresponding to address.
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公开(公告)号：US20170050436A1
公开(公告)日：2017-02-23
申请号：US15339715
申请日：2016-10-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Garrett E. Clark , Chris Bakker , Mark H. MacKenzie , Glenn D. McCloy
IPC: B41J2/14
CPC classification number: B41J2/04563 , B41J2/0454 , B41J2/0458 , B41J2/04581 , B41J2/04586 , B41J2/14072 , B41J2/1433 , B41J2/155 , B41J2002/14491
Abstract: A print head die may include a substrate, an electrical connector and at least three liquid feed slots. The electrical connector is on a first side of the substrate and extends along the major dimension of the substrate. The electrical connector is connectable directly to an electrical interconnect to connect the print head die to a controller. The at least three liquid feed slots are formed in the substrate and extend along the major dimension of the substrate. Wherein at least one and less than all of the at least three liquid feed slots has an associated temperature sensor connected to the electrical connector.
Abstract translation: 打印头模具可以包括基板，电连接器和至少三个液体进料槽。 电连接器位于基板的第一侧上并且沿着基板的主要尺寸延伸。 电连接器可直接连接到电气互连以将打印头模具连接到控制器。 至少三个液体进料槽形成在基底中并且沿着基底的主要尺寸延伸。 其中至少一个且少于所有至少三个液体进料槽具有连接到电连接器的相关联的温度传感器。
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公开(公告)号：US20200164639A1
公开(公告)日：2020-05-28
申请号：US16778197
申请日：2020-01-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Eric T. Martin , Chris Bakker
Abstract: Fluid ejection devices with multiple activation modes are disclosed. An example printhead assembly includes a fluid ejection nozzle, a first resistor fluidically coupled to the fluid ejection nozzle, and a second resistor fluidically coupled to the fluid ejection nozzle. The example printhead also includes an addressing circuit to receive a nozzle address and an activation mode to activate the fluid ejection nozzle. The activation mode determines which of the first resistor and the second resistor are to be energized.
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