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    Determining minimum energy pulse characteristics in an ink jet print head
    1.
    发明公开
    Determining minimum energy pulse characteristics in an ink jet print head 审中-公开

    公开(公告)号：EP1952989A3

    公开(公告)日：2008-08-20

    申请号：EP08003941.5

    申请日：2001-08-03

    申请人： Lexmark International, Inc., Intellectual Property Law Dept.

    发明人： Cornell, Robert, Wilson

    IPC分类号： B41J2/05 ,  B41J2/14

    CPC分类号： B41J2/04553 ,  B41J2/04563 ,  B41J2/0458 ,  B41J2/0459 ,  B41J2/04591 ,  B41J2/04593 ,  B41J2/14129 ,  B41J2202/17

    摘要： A system provides a maximum optimal thickness of a protective overcoat (40) covering a resistive heating element (34) to which an optimum energy pulse is provided. The optimum energy pulse provides an optimal energy density at a surface of the heating element to cause optimal nucleation of the ink adjacent the surface of the heating element. The system includes storing in memory (26) values related to heating element dimensions, heating element electrical characteristics, and ink characteristics. Also stored in memory are expressions that provide mathematical relationships between the heating element dimensional values, the heating element electrical values, the ink characteristics, and the maximum optimal thickness of the protective overcoat. The system also includes retrieving from memory the store values and expressions, and determining, based on the expressions, a thickness value representing the maximum optimal thickness of the protective overcoat. The energy density provided by the optimum energy pulse is large enough to cause the ink near the heating element to form a bubble and a droplet, but not so large that energy is wasted which cannot be transferred into the ink after the bubble is formed.

    Determining minimum energy pulse characteristics in an ink jet print head
    2.
    发明公开
    Determining minimum energy pulse characteristics in an ink jet print head 审中-公开
    确定喷墨打印头中的最小能量脉冲特性

    公开(公告)号：EP1952989A2

    公开(公告)日：2008-08-06

    申请号：EP08003941.5

    申请日：2001-08-03

    申请人： Lexmark International, Inc., Intellectual Property Law Dept.

    发明人： Cornell, Robert, Wilson

    IPC分类号： B41J2/05 ,  B41J2/14

    CPC分类号： B41J2/04553 ,  B41J2/04563 ,  B41J2/0458 ,  B41J2/0459 ,  B41J2/04591 ,  B41J2/04593 ,  B41J2/14129 ,  B41J2202/17

    摘要： A system provides a maximum optimal thickness of a protective overcoat (40) covering a resistive heating element (34) to which an optimum energy pulse is provided. The optimum energy pulse provides an optimal energy density at a surface of the heating element to cause optimal nucleation of the ink adjacent the surface of the heating element. The system includes storing in memory (26) values related to heating element dimensions, heating element electrical characteristics, and ink characteristics. Also stored in memory are expressions that provide mathematical relationships between the heating element dimensional values, the heating element electrical values, the ink characteristics, and the maximum optimal thickness of the protective overcoat. The system also includes retrieving from memory the store values and expressions, and determining, based on the expressions, a thickness value representing the maximum optimal thickness of the protective overcoat. The energy density provided by the optimum energy pulse is large enough to cause the ink near the heating element to form a bubble and a droplet, but not so large that energy is wasted which cannot be transferred into the ink after the bubble is formed.

    摘要翻译： 系统提供了覆盖提供最佳能量脉冲的电阻加热元件（34）的保护性外涂层（40）的最大最佳厚度。 最佳能量脉冲在加热元件的表面处提供最佳能量密度，以引起邻近加热元件表面的墨水的最佳成核。 该系统包括在存储器（26）中存储与加热元件尺寸，加热元件电特性和墨水特性有关的值。 还存储在存储器中的是提供加热元件尺寸值，加热元件电气值，墨水特性和保护性外涂层的最大最佳厚度之间的数学关系的表达式。 该系统还包括从存储器中检索存储值和表达式，并且基于表达式确定表示保护性外涂层的最大最佳厚度的厚度值。 由最佳能量脉冲提供的能量密度足够大以致使加热元件附近的墨水形成气泡和液滴，但不会太大，以至于在气泡形成后不能将能量转移到墨水中而浪费能量。

    METHODS AND APPARATUSES FOR IMPLEMENTING MULTI-VIA HEATER CHIPS
    3.
    发明公开
    METHODS AND APPARATUSES FOR IMPLEMENTING MULTI-VIA HEATER CHIPS 审中-公开
    方法和设备实施情况的多钻加热器芯片

    公开(公告)号：EP1951526A1

    公开(公告)日：2008-08-06

    申请号：EP06815606.6

    申请日：2006-09-28

    申请人： Lexmark International, Inc., Intellectual Property Law Dept.

    发明人： KING, David, G.

    IPC分类号： B41J2/05 ,  B21D53/76

    CPC分类号： B41J2/14072

    摘要： A heater chip for use in a printing device that includes a first heater array with a left side and a right side and a first ink via placed on the left side of the first heater array. The chip also includes a second heater array with a left side and a right side, where a right side of the first heater array faces the left side of the second heater array, a second ink via placed on the right side of the second heater array, and at least one logic array is disposed between the first heater array and the second heater array.

    LOW ENERGY, LONG LIFE MICRO-FLUID EJECTION DEVICE
    7.
    发明公开
    LOW ENERGY, LONG LIFE MICRO-FLUID EJECTION DEVICE 有权
    电源ARMS，耐用的微型液体喷射装置

    公开(公告)号：EP1968797A2

    公开(公告)日：2008-09-17

    申请号：EP06848047.4

    申请日：2006-12-21

    申请人： Lexmark International, Inc., Intellectual Property Law Dept.

    发明人： CORNELL, Robert, Wilson ,  POWER, James, Harold ,  MULAY, Shirish, Padamakar ,  CORNELL, Robert, L.

    IPC分类号： B41J2/05

    CPC分类号： B41J2/14129 ,  B41J2/1404 ,  B41J2002/14185 ,  B41J2002/14387

    摘要： Micro-fluid ejection heads and methods for extending the life of micro-fluid ejection heads. One such micro-fluid ejection head includes a substrate having a plurality of thermal ejection actuators. Each of the thermal ejection actuators has a resistive layer and a protective layer thereon. A flow feature member is adjacent the substrate and defines a fluid feed channel, a fluid chamber associated with at least one of the actuators and in flow communication with the fluid feed channel, and a nozzle. The nozzle is offset to a side of the chamber opposite the feed channel. A polymeric layer having a degradation temperature of less than about 400° C. overlaps a portion of the at least one actuator associated with the fluid chamber and positioned less than about five microns from at least an edge of the at least one actuator opposite the fluid feed channel.

    MULTIPLE DROP-VOLUME PRINTHEAD APPARATUS AND METHOD
    8.
    发明公开
    MULTIPLE DROP-VOLUME PRINTHEAD APPARATUS AND METHOD 审中-公开
    头装置和方法的研究多墨滴量

    公开(公告)号：EP1868816A2

    公开(公告)日：2007-12-26

    申请号：EP05734197.6

    申请日：2005-04-11

    申请人： Lexmark International, Inc., Intellectual Property Law Dept.

    发明人： GOIN, Richard, L. ,  POWERS, James, H.

    IPC分类号： B41J2/05

    CPC分类号： B41J2/1404 ,  B41J2/2125 ,  B41J2002/14387

    摘要： Flow features in an inkjet printhead (10). The flow features can include a plurality of first channels, each of the plurality of first channels having a first length and positioned to fluidly communicate with an ink reservoir, and each of the plurality of first channels (42) terminating in a first nozzle (22a). The flow features can further include a plurality of second channels (46), each of the plurality of second channels having a second length greater than the first length and positioned to fluidly communicate with the ink reservoir, each of the plurality of second channels terminating in a second nozzle (22b), each second nozzle being larger than each first nozzle.