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    • 4. 发明申请
    • INK JET PRINTHEAD HAVING A MOVABLE REDUNDANT ARRAY OF NOZZLES
    • 喷墨喷头具有可移动的冗余喷嘴阵列
    • US20080278527A1
    • 2008-11-13
    • US11747465
    • 2007-05-11
    • Roger A. Newell
    • Roger A. Newell
    • B41J29/38
    • B41J29/393B41J2/2139
    • There is provided a printhead for an ink jet printer, including a primary and a secondary array of nozzles in the printhead, the nozzles in the primary array of nozzles being in alignment with the nozzles in the secondary array of nozzles in a printing process direction; detection system for detecting defective nozzles in both the primary array of nozzles and in the secondary array of nozzles; a first mode operation having means for selectively activating nozzles in the secondary array of nozzles that are in alignment with defective nozzles in the primary array of nozzles; and a second mode of operation having means, responsive to the detecting means, for translating the secondary array of nozzles in relation to the primary array of nozzles along a path to a first position to realigned the nozzles in the primary array of nozzles to nozzles in the secondary array of nozzles if defective nozzles are aligned in both the primary and the secondary array of nozzles.
    • 提供了一种用于喷墨打印机的打印头,包括打印头中的主要和次要的喷嘴阵列,喷嘴的主阵列中的喷嘴与印刷过程方向上的喷嘴二次阵列中的喷嘴对齐; 用于检测喷嘴的一组阵列和喷嘴的二次阵列中的有缺陷的喷嘴的检测系统; 第一模式操作具有用于选择性地激活与所述主喷嘴阵列中的缺陷喷嘴对准的喷嘴二次阵列中的喷嘴的装置; 以及第二操作模式,其具有响应于检测装置的装置,用于相对于喷嘴的主阵列沿着路径将第二阵列的喷嘴平移到第一位置,以将喷嘴的主阵列中的喷嘴重新排列到喷嘴的喷嘴 如果有缺陷的喷嘴在主喷嘴和次喷嘴阵列中对准,则喷嘴的二次阵列。