Patent ID: 8934133
Filing Date: 2015-01-13
Classification: B41J,G06K

Abstract:
1. A system for high-speed multi-color printing comprising: a first print station having a plurality of print elements each of which prints a first swath on a print media that prints a first image plane; wherein first adjacent swaths are stitched together at stitch locations; a first linear sensor having at least two first high-resolution sensor arrays aligned with the stitch locations and at least one first low-resolution sensor array; wherein the two first high-resolution sensor arrays are non-continuous; transmitting an output of the two first high-resolution sensor arrays to a controller; wherein the controller calculates a stitch correction based on a first high-resolution image for the first print station; wherein the controller, based on the calculated correction, adjusts at least one of a timing of or a selection of print elements of image data and provided to printing dots on the first print station to align an output of the printed dots; a second print station having a plurality of print elements each of which prints a second swath on the print media that prints a second image plane; wherein second adjacent swaths are stitched together at the stitch locations; a second linear sensor having at least two second high-resolution sensor arrays aligned with the stitch locations of the second print station and at least one second low-resolution sensor array; wherein the two second high-resolution sensor arrays are non-continuous; transmitting an output of the two second high-resolution sensor arrays to the controller; wherein the controller calculates a second image plane stitch correction based on the second high-resolution image for the second print station; and wherein the controller, based on the calculated correction, adjusts at least one of a timing or a selection of the print elements of image data provided to printing dots on the second print station to align an output of the printed dots.