Correcting in-track errors in linear printheads

A method for correcting in-track position errors in a digital printing system having a linear printhead includes printing a test target including a plurality of alignment marks. A data processing system is used to automatically analyze the captured image of the printed test target to determine a mea...

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Hauptverfasser: MIX, BRENT, B, KUO CHIA-HUNG, DOBBERTIN MARK T
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:A method for correcting in-track position errors in a digital printing system having a linear printhead includes printing a test target including a plurality of alignment marks. A data processing system is used to automatically analyze the captured image of the printed test target to determine a measured in-track position for each of the alignment marks. The measured in-orbit position for the alignment mark is compared to a reference position to determine a measured in-orbit position error. An in-orbit position correction function is determined in response to the measured in-orbit position error, where the in-orbit position correction function specifies an in-orbit position correction to be applied as a function of the cross-orbit position. The corrected digital image is determined by resampling the input digital image in response to an in-orbit position correction function. 一种用于校正具有线性打印头的数字打印系统中的轨道内位置误差的方法包括打印包括多个对准标记的测试目标。数据处理系统用于自动地分析所打印的测试目标的所捕获的图像,以确定对于对准标记中的每个的所测量的轨道内位置。将对于对准标记的所测量的轨道内位置与参考位置比较,以确定所测量的轨