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1. 发明申请

WO2017082886A1 PRINTHEAD-INTEGRATED INK LEVEL SENSOR WITH CENTRAL CLEARING RESISTOR 审中-公开
标题翻译： PRINTHEAD集成式墨水量传感器，带中央清除电阻
公开(公告)号：WO2017082886A1
公开(公告)日：2017-05-18
申请号：PCT/US2015/060006
申请日：2015-11-10
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： NG, Boon Bing , LEONARD, Patrick , CONNOLLY, Raymond
IPC分类号： B41J2/175 , B41J2/14 , G01F23/26
CPC分类号： B41J2/175 , B41J2/14129 , B41J2/14153 , B41J2/17566 , G01F23/26
摘要： The present subject matter relates to printhead-integrated ink level sensor (PILS) system. In an example implementation, the PILS system includes a sense capacitor plate in a fluid sensing chamber to sense a level of fluid in the fluid sensing chamber. The fluid sensing chamber is in fluid communication with a fluid reservoir of the printhead to receive fluid from the fluid reservoir. The sense capacitor plate includes at least one slot. The PILS system further includes at least one central clearing resistor and at least one peripheral clearing resistor to clear the fluid sensing chamber of the fluid. The central clearing resistor is provided in the at least one slot of the sense capacitor plate. The at least one peripheral resistor is provided in the fluid sensing chamber surrounding the sense capacitor plate.
摘要翻译：本主题涉及打印头一体式墨水液位传感器（PILS）系统。在示例实现中，PILS系统包括在流体感测腔室中的感测电容器板，以感测流体感测腔室中的流体水平。流体感测腔室与打印头的流体贮存器流体连通以从流体贮存器接收流体。感测电容器板包括至少一个槽。 PILS系统还包括至少一个中央清除电阻器和至少一个外围清除电阻器，以清除流体的流体感测室。中央清除电阻器设置在感测电容器板的至少一个槽中。至少一个外围电阻器设置在围绕感测电容器板的流体感测室中。

2. 发明申请

WO2016068913A1 FLUID EJECTION DEVICE WITH PRINTHEAD INK LEVEL SENSOR 审中-公开
标题翻译：带PRINTHEAD墨水传感器的流体喷射装置
公开(公告)号：WO2016068913A1
公开(公告)日：2016-05-06
申请号：PCT/US2014/062926
申请日：2014-10-29
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： NG, Boon Bing , GOY, Hang Ru , LEONARD, Patrick , O'BRIEN, Shane
IPC分类号： B41J2/175 , B41J2/135
CPC分类号： B41J2/14072 , B41J2/14153 , B41J2/1601 , B41J2/164 , B41J2/175 , B41J2202/18
摘要： A fluid ejection device including a printhead die having a plurality of layers, including a single metal layer, and having an integrated ink level sensor. The ink level sensor includes an ink chamber above the metal layer, a metal plate of a sense capacitor disposed in the metal layer, and a clearing resistor circuit disposed in the metal layer including four clearing resistors arranged in a surround-4 configuration about the metal plate and electrically connected in parallel between a voltage potential and ground, wherein adjacent ends of at least two clearing resistors are not directly connected to one another so as to leave a gap between the adjacent ends in the metal layer. A metal lead in the metal layer extends through the gap to the metal plate.
摘要翻译：一种流体喷射装置，包括具有多个层的打印头芯片，包括单个金属层，并且具有集成的墨水量传感器。墨水位传感器包括在金属层上方的墨室，设置在金属层中的感测电容器的金属板，以及布置在金属层中的清除电阻电路，包括四个清除电阻器，围绕金属围绕4形结构布置并且在电压电位和接地之间并联电连接，其中至少两个清除电阻器的相邻端部不直接彼此连接，以便在金属层中的相邻端部之间留下间隙。金属层中的金属引线穿过间隙延伸到金属板。

3. 发明申请

WO2016068954A1 PRINT HEAD SENSING CHAMBER CIRCULATION 审中-公开
标题翻译：打印头感测室循环
公开(公告)号：WO2016068954A1
公开(公告)日：2016-05-06
申请号：PCT/US2014/063214
申请日：2014-10-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： GOVYADINOV, Alexander , GHOZEIL, Adam L. , NG, Boon Bing , LEONARD, Patrick , CONNOLLY, Raymond
IPC分类号： B41J2/175 , B41J2/135
CPC分类号： B41J2/17566 , B41J2/04541 , B41J2/0458 , B41J2/1404 , B41J2/14072 , B41J2/14153 , B41J2/175 , B41J2/18 , B41J2002/14467 , B41J2202/11 , B41J2202/12
摘要： A print head has an ink slot and a sensing chamber having a first port connected to the fluid slot and a second port. The sensing chamber contains an ink level sensor. A recirculation passage extends from the fluid slot and is fluidly coupled to the second port. A fluid pump circulates fluid through the recirculation passage.
摘要翻译：打印头具有墨槽和具有连接到流体槽的第一端口和第二端口的感测室。感测室包含一个墨水位传感器。再循环通道从流体槽延伸并且流体地联接到第二端口。流体泵将流体循环通过再循环通道。

4. 发明申请

WO2014084843A1 FLUID EJECTION DEVICE WITH INTEGRATED INK LEVEL SENSOR 审中-公开
标题翻译：具有集成墨水量传感器的流体喷射装置
公开(公告)号：WO2014084843A1
公开(公告)日：2014-06-05
申请号：PCT/US2012/067225
申请日：2012-11-30
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： GE, Ning , TORGERSON, Joseph M. , LEONARD, Patrick
IPC分类号： B41J29/393 , B41J2/175 , B41J2/125
CPC分类号： B41J2/165 , B41J2/04541 , B41J2/0458 , B41J2/1404 , B41J2/14129 , B41J2/1753 , B41J2/17546 , B41J2/17566 , B41J2002/14354 , B41J2002/17579
摘要： In an embodiment, a fluid ejection device includes an ink slot formed in a printhead die. The fluid ejection device also includes a printhead-integrated ink level sensor (PILS) to sense an ink level of a chamber in fluid communication with the slot, and a clearing resistor circuit disposed within the chamber to clear the chamber of ink.
摘要翻译：在一个实施例中，流体喷射装置包括形成在打印头芯片中的墨槽。流体喷射装置还包括用于感测与槽流体连通的室的油墨水平的打印头集成油墨水平传感器（PILS），以及设置在室内以清除油墨室的清除电阻电路。

5. 发明授权

EP3212408B1 PRINT HEAD SENSING CHAMBER CIRCULATION 有权转让
公开(公告)号：EP3212408B1
公开(公告)日：2020-08-26
申请号：EP14904635.1
申请日：2014-10-30
申请人： Hewlett-Packard Development Company, L.P.
发明人： GOVYADINOV, Alexander , GHOZEIL, Adam L. , NG, Boon Bing , LEONARD, Patrick , CONNOLLY, Raymond
IPC分类号： B41J2/175 , B41J2/135 , B41J2/045 , B41J2/14 , B41J2/18

6. 发明授权

EP3337663B1 PRINTHEAD-INTEGRATED INK LEVEL SENSOR WITH CENTRAL CLEARING RESISTOR 有权转让
公开(公告)号：EP3337663B1
公开(公告)日：2020-05-06
申请号：EP15908431.8
申请日：2015-11-10
申请人： Hewlett-Packard Development Company, L.P.
发明人： NG, Boon Bing , LEONARD, Patrick , CONNOLLY, Raymond
IPC分类号： B41J2/175 , B41J2/14 , G01F23/26

7. 发明公开

EP3089877A1 FLUID EJECTION DEVICE WITH INTEGRATED INK LEVEL SENSORS 有权转让
标题翻译： ÜUNG UNG UNG EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN
公开(公告)号：EP3089877A1
公开(公告)日：2016-11-09
申请号：EP14877327.8
申请日：2014-01-03
申请人： Hewlett-Packard Development Company, L.P.
发明人： GE, Ning , LEONARD, Patrick
IPC分类号： B41J2/04 , B41J2/14
摘要： In an embodiment, a fluid ejection device includes a fluid feed slot formed in a printhead die and a plurality of printhead-integrated ink level sensors (PILS). A fluid ejection device may include a first PILS to sense an ink level of a first chamber in fluid communication with the fluid feed slot, the first PILS to detect an empty ink level of the first chamber when the fluid ejection device is at a first ink level state, and a second PILS to sense an ink level of a second chamber in fluid communication with the fluid feed slot, the second PILS to detect an empty ink level of the second chamber when the fluid ejection device is at a second ink level state, different than the first ink level state.
摘要翻译：在一个实施例中，流体喷射装置包括形成在打印头芯片中的流体供给槽和多个打印头集成墨水位传感器（PILS）。流体喷射装置可以包括用于感测与流体供给槽流体连通的第一室的油墨水平的第一PILS，当流体喷射装置处于第一油墨时，第一PILS检测第一室的空墨水平以及第二PILS，用于感测与所述流体供给槽流体连通的第二室的墨水量，所述第二PILS在所述流体喷射装置处于第二墨水水平状态时检测所述第二腔室的空墨水平，不同于第一个墨水状态

8. 发明授权

EP3089877B1 FLUID EJECTION DEVICE WITH INTEGRATED INK LEVEL SENSORS 有权转让
公开(公告)号：EP3089877B1
公开(公告)日：2020-08-19
申请号：EP14877327.8
申请日：2014-01-03
申请人： Hewlett-Packard Development Company, L.P.
发明人： GE, Ning , LEONARD, Patrick
IPC分类号： B41J2/045 , B41J2/14

9. 发明授权

EP2925528B1 FLUID EJECTION DEVICE WITH INTEGRATED INK LEVEL SENSOR 失效转让
公开(公告)号：EP2925528B1
公开(公告)日：2019-01-02
申请号：EP12889098.5
申请日：2012-11-30
申请人： Hewlett-Packard Development Company, L.P.
发明人： GE, Ning , TORGERSON, Joseph M. , LEONARD, Patrick
IPC分类号： B41J29/393 , B41J2/175 , B41J2/125 , B41J2/045 , B41J2/14

10. 发明公开

EP3337663A1 PRINTHEAD-INTEGRATED INK LEVEL SENSOR WITH CENTRAL CLEARING RESISTOR 有权转让
公开(公告)号：EP3337663A1
公开(公告)日：2018-06-27
申请号：EP15908431.8
申请日：2015-11-10
申请人： Hewlett-Packard Development Company, L.P.
发明人： NG, Boon Bing , LEONARD, Patrick , CONNOLLY, Raymond
IPC分类号： B41J2/175 , B41J2/14 , G01F23/26
摘要： The present subject matter relates to printhead-integrated ink level sensor (PILS) system. In an example implementation, the PILS system includes a sense capacitor plate in a fluid sensing chamber to sense a level of fluid in the fluid sensing chamber. The fluid sensing chamber is in fluid communication with a fluid reservoir of the printhead to receive fluid from the fluid reservoir. The sense capacitor plate includes at least one slot. The PILS system further includes at least one central clearing resistor and at least one peripheral clearing resistor to clear the fluid sensing chamber of the fluid. The central clearing resistor is provided in the at least one slot of the sense capacitor plate. The at least one peripheral resistor is provided in the fluid sensing chamber surrounding the sense capacitor plate.

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