Reduction of pitch errors between points of a print image

Details Reduction of pitch errors between points of a print image Reduction of pitch errors between points of a print image

B - Operations, Transporting

41

J

B41J 29/393 (2006.01) G07B 17/00 (2006.01)

Patent

CA 2642948

Method to reduce a deviation from a predetermined desired pitch that occurs between at least two points of at least one print image (103.1, 103.2) in a print direction, in which: in a printing step (107.6), the at least one print image (103.1, 103.2) is,generated on a substrate (104) with at least one print head (102.1, 102.2) of a printing device (102) under a relative movement between the at least print head (102.1, 102.2) and the substrate (104); wherein in a determination step (107.2, 107.3, 107.4, 107.5) preceding the printing step (107.6), an initial deviation from a desired pitch between the two points is determined first and correction information to reduce the deviation is determined from the determined initial deviation; and in the printing step (107.6), control signals (106) for the at least one print head (102.1, 102.2) are generated depending on the correction information to generate the at least one print image; wherein an (in particular variable) delay of at least one of the control signals (106) is predetermined by the correction information.

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