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1. 发明公开

EP3511165A1 FLUID EJECTION ASSEMBLY, PRINTING SYSTEM AND METHOD OF OPERATING A PRINTHEAD 有权
公开(公告)号：EP3511165A1
公开(公告)日：2019-07-17
申请号：EP19159735.0
申请日：2015-02-13
申请人： Hewlett-Packard Development Company, L.P.
发明人： BAKKER, Chris , MARTIN, Eric T , GHOZEIL, Adam L
IPC分类号： B41J2/04
摘要： In an example, a fluid ejection assembly comprises an address line for communicating a set of addresses; a set of data lines; a number of primitives, a buffer and address logic. Each primitive may include a plurality of controllable activation devices, each activation device being coupled to the address line, each activation device corresponding to at least one address of the set of addresses, each address corresponding to a primitive function, wherein each activation device of a primitive is coupled to the same data line, and each primitive is coupled to a different data line. The buffer may receive a series of data packets, each data packet including address bits representative of one address of the set of addresses and a set of print data bits, direct the address bits of the data packet to address logic, and place the data bits from print data portion of the data packets onto corresponding data lines. The address logic may receive the address bits from the buffer. For each data packet, the address logic may encode the address represented by the address bits onto the address line, and wherein the at least one activation device corresponding to the encoded address is to activate the primitive function corresponding to the address based on the encoded address being on the address line, print data being present on the corresponding data line and a fire pulse being active.

2. 发明公开

EP3113953A1 FLUID EJECTION DEVICE WITH GROUND ELECTRODE EXPOSED TO FLUID CHAMBER 有权转让
标题翻译： FLÜSSIGKEITSAUSSTOSSVORRICHTUNGMIT MASSEELEKTRODE，DIE EINERFLÜSSIGKEITSKAMMERAUSGESETZT IST
公开(公告)号：EP3113953A1
公开(公告)日：2017-01-11
申请号：EP14884288.3
申请日：2014-03-07
申请人： Hewlett-Packard Development Company, L.P.
发明人： GE, Ning , LEONARD, Patrick , GHOZEIL, Adam L
IPC分类号： B41J2/14 , B41J2/16
CPC分类号： B41J2/17566 , B41J2/04541 , B41J2/04566 , B41J2/04571 , B41J2/14072 , B41J2/1412 , B41J2/14129 , B41J2/14153 , B41J2002/14354 , B41J2202/18
摘要： An example provides a fluid ejection device including a fluid feed slot, a fluid chamber between a nozzle layer and a passivation layer, and a printhead-integrated sensor to sense a property of a fluid in the fluid chamber. The sensor may include a ground electrode exposed to the fluid chamber through a via in the passivation layer.
摘要翻译：一个实例提供了一种流体喷射装置，其包括流体供给槽，在喷嘴层和钝化层之间的流体室，以及用于感测流体室中的流体性质的打印头集成传感器。传感器可以包括通过钝化层中的通孔暴露于流体室的接地电极。

3. 发明授权

EP3281802B1 FLUID EJECTION ASSEMBLY, PRINTING SYSTEM AND METHOD OF OPERATING A PRINTHEAD 有权转让
公开(公告)号：EP3281802B1
公开(公告)日：2019-11-13
申请号：EP17194077.8
申请日：2015-02-13
申请人： Hewlett-Packard Development Company, L.P.
发明人： BAKKER, Chris , MARTIN, Eric , GHOZEIL, Adam L
IPC分类号： B41J29/38 , B41J2/07

4. 发明公开

EP2726296A1 METHOD AND APPARATUS TO REGULATE TEMPERATURE OF PRINTHEADS 有权转让
标题翻译：方法和装置用于调节打印头的温度
公开(公告)号：EP2726296A1
公开(公告)日：2014-05-07
申请号：EP11869025.4
申请日：2011-07-01
申请人： Hewlett-Packard Development Company, L.P.
发明人： VANBROCKLIN, Andrew L , HUNTER, Mark , FRICKE, Peter James , GHOZEIL, Adam L , GARDNER, James Michael
IPC分类号： B41J2/175 , B41J2/045
CPC分类号： B41J2/04563 , B41J2/04528 , B41J2/0458 , B41J2/04588 , B41J2/04596 , B41J2/195
摘要： An apparatus including an analog memory, a temperature sensor, a comparator, and a pulse circuit. The analog memory is charged to a reference voltage corresponding to a predetermined temperature of a printhead. The temperature sensor measures a thermal voltage of at least one of the plurality of local areas of the printhead. The comparator obtains a comparison result by comparing the reference voltage to the thermal voltage. The pulse circuit selectively transmits a series of warming pulses to the at least one of the plurality of local areas of the printhead based on the comparison result.

5. 发明授权

EP2726296B1 METHOD AND APPARATUS TO REGULATE TEMPERATURE OF PRINTHEADS 有权转让
公开(公告)号：EP2726296B1
公开(公告)日：2018-09-05
申请号：EP11869025.4
申请日：2011-07-01
申请人： Hewlett-Packard Development Company, L.P.
发明人： VANBROCKLIN, Andrew L , HUNTER, Mark , FRICKE, Peter James , GHOZEIL, Adam L , GARDNER, James Michael
IPC分类号： B41J2/175 , B41J2/045
CPC分类号： B41J2/04563 , B41J2/04528 , B41J2/0458 , B41J2/04588 , B41J2/04596 , B41J2/195
摘要： An apparatus including an analog memory, a temperature sensor, a comparator, and a pulse circuit. The analog memory is charged to a reference voltage corresponding to a predetermined temperature of a printhead. The temperature sensor measures a thermal voltage of at least one of the plurality of local areas of the printhead. The comparator obtains a comparison result by comparing the reference voltage to the thermal voltage. The pulse circuit selectively transmits a series of warming pulses to the at least one of the plurality of local areas of the printhead based on the comparison result.

6. 发明公开

EP3281802A1 FLUID EJECTION ASSEMBLY 有权转让
标题翻译：流体喷射组件
公开(公告)号：EP3281802A1
公开(公告)日：2018-02-14
申请号：EP17194077.8
申请日：2015-02-13
申请人： Hewlett-Packard Development Company, L.P.
发明人： BAKKER, Chris , MARTIN, Eric , GHOZEIL, Adam L
IPC分类号： B41J29/38 , B41J2/07
摘要： A fluid ejection assembly comprises an address line for communicating a set of addresses, a set of data lines and a number of primitives. Each primitive includes a plurality of controllable activation devices, each being coupled to the address line and corresponding to at least an address, and each address corresponds to a primitive function. Each activation device is coupled to the same data line, and each primitive is coupled to a different data line. The fluid ejection assembly further comprises a buffer to receive a series of data packets including address bits representative of an address and a set of print data bits, to direct the address bits to address logic, and to place the data bits from the print data portion of the data packets onto corresponding data lines. Address logic of the fluid ejection assembly is to receive the address bits, and to encode the address represented by the data bits onto the address line. An activation device corresponding to the encoded address is to activate the primitive function corresponding to the address based on the encoded address being on the address line, print data being present on the corresponding data line and a fire pulse being active.
摘要翻译：流体喷射组件包括用于传送一组地址，一组数据线和多个基元的地址线。每个基元包括多个可控激活装置，每个可控激活装置耦合到地址线并且对应于至少一个地址，并且每个地址对应于基元函数。每个激活装置耦合到相同的数据线，并且每个基元耦合到不同的数据线。流体喷射组件还包括缓冲器，用于接收包括表示地址和一组打印数据位的地址位的一系列数据包，将地址位引导到地址逻辑，并将来自打印数据部分的数据位的数据包到相应的数据线上。流体喷射组件的地址逻辑将接收地址位，并将由数据位表示的地址编码到地址线上。对应于编码地址的激活装置将基于地址线上正在编码的地址激活对应于地址的原始函数，打印数据出现在相应的数据线上并且激活激发的激励脉冲。

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