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    Method for determining vertical misalignment between printer print heads
    3.
    发明授权
    Method for determining vertical misalignment between printer print heads 有权
    用于确定打印机打印头之间的垂直未对准的方法

    公开(公告)号：US06478401B1

    公开(公告)日：2002-11-12

    申请号：US09900634

    申请日：2001-07-06

    申请人： David Golman King ,  Patrick Laurence Kroger

    发明人： David Golman King ,  Patrick Laurence Kroger

    IPC分类号： B41J29393

    CPC分类号： B41J29/393 ,  B41J2/2135

    摘要： A method for determining vertical misalignment between first and second print heads involves printing a test pattern of first and second alternating slanted blocks extending horizontally. The first slanted blocks are printed by the first print head and the second slanted blocks are printed by the second print head. A known edge angle of the first and second slanted blocks is substantially the same. A sensor is moved across the test pattern for evaluating misalignment.

    摘要翻译： 用于确定第一和第二打印头之间的垂直未对准的方法涉及打印水平延伸的第一和第二交替倾斜块的测试图案。 第一倾斜块由第一打印头打印，第二倾斜块由第二打印头打印。 第一和第二倾斜块的已知边缘角度基本相同。 传感器在测试图案上移动以评估未对准。

    METHOD AND APPARATUS FOR CONTROLLING NON-NUCLEATING HEATING IN A FLUID EJECTION DEVICE
    6.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING NON-NUCLEATING HEATING IN A FLUID EJECTION DEVICE 审中-公开
    用于控制流体喷射装置中非加热加热的方法和装置

    公开(公告)号：US20090160898A1

    公开(公告)日：2009-06-25

    申请号：US11960997

    申请日：2007-12-20

    申请人： Steven Wayne Bergstedt ,  David Golman King ,  Gregory Scott Woods

    发明人： Steven Wayne Bergstedt ,  David Golman King ,  Gregory Scott Woods

    IPC分类号： B41J29/00

    CPC分类号： B41J2/1753 ,  B41J2/04528 ,  B41J2/04543 ,  B41J2/0458

    摘要： A method is described for controlling the temperature of a fluid ejection head is a fluid ejection apparatus. The fluid ejection head includes heating elements for generating fluid-nucleating heat for fluid ejection purposes and for generating non-fluid-nucleating heat (NNH) for temperature control purposes. The fluid ejection head has heating elements disposed in a plurality of zones distributed across the fluid ejection head. The heating elements are assigned to a plurality of address groups that are activated during corresponding address windows. The method includes generating a bit intensity word corresponding to each zone, where the bit intensity word specifies a sequence for activating the address groups for generating NNH. Each bit of the bit intensity word controls the activation of a corresponding address group during a corresponding address window. The high or low states of each bit in each of the bit intensity words are determined so that the address groups activated during the address windows are evenly distributed over the zones of the fluid ejection head to substantially balance the distribution of electrical current applied for non-fluid-nucleating heating across the zones.

    摘要翻译： 描述了用于控制流体喷射头的温度的方法是流体喷射装置。 流体喷射头包括用于产生用于流体喷射目的的流体成核热并用于产生用于温度控制目的的非流体成核热（NNH）的加热元件。 流体喷射头具有设置在分布在流体喷射头上的多个区域中的加热元件。 加热元件被分配给在相应地址窗口期间激活的多个地址组。 该方法包括生成对应于每个区域的位强度字，其中位强度字指定用于激活用于产生NNH的地址组的序列。 比特强度字的每一位控制相应地址窗口中相应地址组的激活。 确定每个位强度字中的每个位的高或低状态，使得在地址窗口期间激活的地址组均匀地分布在流体喷射头的区域上，以基本上平衡施加于非易失性存储器的电流的分布， 跨区域的流体成核加热。

    Printhead swath height measurement and compensation for ink jet printing
    7.
    发明授权
    Printhead swath height measurement and compensation for ink jet printing 有权
    打印头扫描高度测量和喷墨打印补偿

    公开(公告)号：US07036904B2

    公开(公告)日：2006-05-02

    申请号：US10699551

    申请日：2003-10-30

    申请人： David Golman King ,  Colin Geoffrey Maher ,  Stephen Todd Olson

    发明人： David Golman King ,  Colin Geoffrey Maher ,  Stephen Todd Olson

    IPC分类号： B41J29/393

    CPC分类号： B41J29/393

    摘要： A method that provides printhead swath height measurement and compensation includes the steps of establishing a nominal printhead swath height to be associated with printheads of a particular type; printing a swath using a first printhead of the particular type; measuring a printhead swath height of the first printhead; determining a difference between the measured printhead swath height of the first printhead and the nominal printhead swath height; generating a printhead swath height correction value based on the difference; and storing the printhead swath height correction value in a printhead memory associated with the first printhead.

    摘要翻译： 提供打印头条高度测量和补偿的方法包括建立与特定类型的打印头相关联的标称打印头条高度的步骤; 使用特定类型的第一打印头打印条带; 测量第一打印头的打印头条高度; 确定所测量的第一打印头的打印头条高度与标称打印头条纹高度之间的差; 基于该差产生打印头条高度校正值; 以及将打印头条高度校正值存储在与第一打印头相关联的打印头存储器中。

    Method for determining the skew of a printhead of a printer
    9.
    发明授权
    Method for determining the skew of a printhead of a printer 有权
    确定打印机打印头偏斜的方法

    公开(公告)号：US06604808B2

    公开(公告)日：2003-08-12

    申请号：US09898372

    申请日：2001-07-03

    申请人： David Golman King ,  Patrick Laurence Kroger ,  Randall David Mayo

    发明人： David Golman King ,  Patrick Laurence Kroger ,  Randall David Mayo

    IPC分类号： B41J29393

    CPC分类号： B41J29/393

    摘要： A method for determining the skew of a printhead of a printer. At least three images are printed which are at least partially aligned substantially along the printhead scan direction with the middle image printed from one of the upper and lower portions of the printhead and with the adjacent images printed from the other of the upper and lower portions of the printhead. A sensor is moved in the printhead scan direction over the images. A function is calculated from the sensor output, wherein the calculated function indicates the skew of the printhead.

    摘要翻译： 一种用于确定打印机的打印头的偏斜的方法。 打印至少三个图像，其基本上沿着打印头扫描方向对准，其中中间图像从打印头的上部和下部中的一个打印，并且相邻图像从上部和下部中的另一个打印 打印头。 传感器在图像上的打印头扫描方向上移动。 从传感器输出计算功能，其中所计算的功能指示打印头的偏斜。

    Printhead alignment test pattern and method for determining printhead misalignment
    10.
    发明授权
    Printhead alignment test pattern and method for determining printhead misalignment 有权

    公开(公告)号：US07044573B2

    公开(公告)日：2006-05-16

    申请号：US10079067

    申请日：2002-02-20

    申请人： David Golman King ,  Patrick Laurence Kroger

    发明人： David Golman King ,  Patrick Laurence Kroger

    IPC分类号： B41J29/393

    CPC分类号： B41J2/2135 ,  B41J29/393

    摘要： A printhead alignment test pattern has spaced-apart images at least partially aligned along an axis. Each image includes leading and trailing edge portions having respective image-outermost leading and trailing edges spaced apart along the axis and includes an intervening portion located between the leading and trailing edge portions. The leading and trailing edge portions have a higher print density than the intervening portion. A method for determining a printhead misalignment of a printer prints the test pattern, moves a sensor along the axis over the images, obtains data from the sensor, determines the locations along the printhead scan axis of the leading and/or trailing edges of the images using the data, and calculates the printhead misalignment from the determined locations of the leading and/or trailing edges of the images. The test pattern reduces cockling of the print media which improves the accuracy of the method.