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    • 1. 发明申请
    • A HEATING ELEMENT FOR A PRINTHEAD
    • 打印头的加热元件
    • WO2014130002A3
    • 2014-10-16
    • PCT/US2012062700
    • 2012-10-31
    • HEWLETT PACKARD DEVELOPMENT CO
    • COOK GALEN PCHUNG BRADLEY DFULLER ANTHONY M
    • B41J2/165
    • B41J2/14129B41J2/1601B41J2/1603B41J2/1626B41J2/164B41J2/1646F22B1/284Y10T29/49083Y10T29/49401
    • An exemplary embodiment of the present invention provides for a fluid ejection device. The fluid ejection device includes a substrate, a conductive layer, a resistive layer, and at least one upper layer. The conductive layer is disposed on the substrate and an outer perimeter and an inner region thinner than the outer perimeter. The outer perimeter includes conductive elements spaced apart from one another. The resistive layer includes an outer resistive portion overlying the conductive elements and a central resistive portion lying on top of a raised bridge of the substrate, wherein the width of the raised bridge is substantially greater than the width of the central resistive portion. The at least one upper layer defines a boundary of a fluid chamber, and the boundary is aligned vertically above a border of the central resistive portion.
    • 本发明的示例性实施例提供了一种流体喷射装置。 流体喷射装置包括基板,导电层,电阻层和至少一个上层。 导电层设置在基板上并且外周边和内周边区域比外周边薄。 外周边包括彼此间隔开的导电元件。 电阻层包括覆盖导电元件的外部电阻部分和位于基板的凸起桥的顶部上的中央电阻部分,其中凸起桥的宽度实质上大于中央电阻部的宽度。 所述至少一个上层限定了流体室的边界,并且所述边界在所述中央电阻部分的边界上方垂直对齐。
    • 2. 发明申请
    • PRINT HEAD DIE
    • 打印头戴
    • WO2014051543A1
    • 2014-04-03
    • PCT/US2012/057040
    • 2012-09-25
    • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    • MACKENZIE, Mark HMACKENZIE, Mark H.SHEPHERD, Matthew, A.SCHALK, Wesley, R.
    • B41J2/14B41J2/045
    • B41J2/145B41J2/14B41J2/14072B41J2/14145B41J2/14201B41J2/155B41J2002/14491Y10T29/49401
    • Various configurations of print head die are described. In an example, a first print head die has first print structures disposed along a major dimension thereof perpendicular to the media path, the first print structures including a leading print structure with respect to the media path. A second print head die independent of the first print head die has second print structures disposed along a major dimension thereof perpendicular to the media path, the second print head die being staggered with respect to the first print head die along the media path, the second print structures including a leading print structure with respect to the media path. An extent between respective leading print structures of the first and second print head dies is between a minimum value and a maximum value computed from a function of expected variation in position of the media and maximum allowable dot placement error for the first and second print structures.
    • 描述了打印头模具的各种构造。 在一个示例中,第一打印头模具具有沿其垂直于介质路径的主要尺寸设置的第一打印结构,第一打印结构包括相对于介质路径的主打印结构。 独立于第一打印头模具的第二打印头模具具有沿其垂直于介质路径的主要尺寸设置的第二打印结构,第二打印头模具沿着介质路径相对于第一打印头模具交错,第二打印头模具 打印结构包括相对于媒体路径的主要打印结构。 第一和第二打印头模具的相应的主要打印结构之间的程度在根据介质位置的预期变化和第一和第二打印结构的最大允许点位置误差的函数计算的最小值和最大值之间。