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    • 7. 发明申请
    • Test Pattern Effective For Fine Registration Of Inkjet Printheads And Method Of Analysis Of Image Data Corresponding To The Test Pattern In An Inkjet Printer
    • 用于喷墨打印头精细注册的测试图案和对应于喷墨打印机中的测试图案的图像数据分析方法
    • US20110242187A1
    • 2011-10-06
    • US12754735
    • 2010-04-06
    • Michael C. MongeonHoward A. Mizes
    • Michael C. MongeonHoward A. Mizes
    • B41J29/393
    • B41J29/393B41J3/543
    • A method analyzes image data corresponding to a test pattern generated on an image receiving member by a printer to identify positions for and registration between printheads in the printer. The method includes identifying a process direction position for each row of dashes in a plurality of rows of dashes in image data of a test pattern printed on an image receiving member, the test pattern being formed by each printhead in a printer forming at least one dash in each row of dashes in the plurality of rows of dashes, identifying a center of each dash in a cross-process direction, identifying an inkjet ejector that formed each dash in the row of dashes, identifying a process direction position for each printhead in the printer, identifying a cross-process displacement for each column of printheads, identifying a stitch displacement in the cross-process direction between neighboring printheads in a print bar unit that print a same color of ink, and operating an actuator to move at least some of the printheads in the printer with reference to the identified process direction positions, cross-process displacements, and the identified stitch displacements.
    • 一种方法分析与由打印机在图像接收部件上生成的测试图形对应的图像数据,以识别打印机中打印头之间的位置和配准位置。 该方法包括识别打印在图像接收部件上的测试图案的图像数据中的多行虚线中的每行破折号的处理方向位置,该测试图案由形成至少一个破折号的打印机中的每个打印头形成 在多行虚线中的每行破折号中,以交叉处理方向识别每个破折号的中心,识别形成该行破折号中的每个破折号的喷墨喷射器,从而识别出每个打印头的处理方向位置 打印机,识别每列打印头的交叉过程位移,识别打印相同颜色墨水的打印条单元中的相邻打印头之间的交叉处理方向上的针脚位移,以及操作致动器以移动至少一些 参考所识别的过程方向位置,交叉过程位移和识别的针脚位移,打印机中的打印头。
    • 10. 发明授权
    • Sensor calibration for robust cross-process registration measurement
    • 传感器校准,用于鲁棒的交叉过程配准测量
    • US07980654B2
    • 2011-07-19
    • US12482030
    • 2009-06-10
    • Michael C. MongeonHoward MizesHelen ShinKenneth R. Ossman
    • Michael C. MongeonHoward MizesHelen ShinKenneth R. Ossman
    • B41J29/393H04N1/46
    • B41J29/393
    • Systems and methods are provided for calibrating a sensory array to ensure a robust cross-process registration measurement. The calibration is implemented using a calibration step that determines the signature error amount of a given image reading sensor. The signature error amount for the sensor is stored in a signature error look-up table. When the sensors are used to sense print head alignment, the correction may be implemented by accessing the signature error look-up table for the given sensor when calibrating the print heads. The signature error look-up table provides an amount of offset for each sensor that is used in determining the appropriate head position of a given print head to calibrate the print heads for the signature error associated with the given sensor.
    • 提供了系统和方法来校准感觉阵列,以确保鲁棒的交叉过程配准测量。 使用确定给定图像读取传感器的签名错误量的校准步骤来实现校准。 传感器的签名错误量存储在签名错误查询表中。 当传感器用于感测打印头对准时,校正可以通过在校准打印头时访问给定传感器的签名错误查找表来实现。 签名错误查找表为每个传感器提供了一定量的偏移量,用于确定给定打印头的适当头部位置,以校准与给定传感器相关联的签名错误的打印头。