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Aligned pasting of a new roll of substrate to an expiring roll of substrate in a printing press

  • US 9,206,012 B2
  • Filed: 09/11/2014
  • Issued: 12/08/2015
  • Est. Priority Date: 03/15/2010
  • Status: Active Grant
First Claim
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1. A printing press comprising:

  • an expiring roll of high quality preprinted substrate comprising;

    preprinted images with an equivalent cutoff; and

    expiring roll timing marks indicating a position of each preprinted image; and

    a web created by threading said expiring roll into the press; and

    a new roll of high quality preprinted substrate comprising;

    preprinted images with the equivalent cutoff; and

    new roll timing marks indicating a position of each preprinted image; and

    a new roll paste mark indicating a new roll leading edge position; and

    an Aligned Paste System (APS) installed in the printing press for controlling a pasting operation, the APS comprising;

    a sensor suite comprising;

    an expiring roll timing mark sensor; and

    a new roll leading edge sensor; and

    a new roll belt drive encoder; and

    a press pulse generator; and

    a computing device which receives signals from the expiring roll timing mark sensor and the press pulse generator calculates expiring roll image speed and position; and

    said computing device receives signals from the new roll leading edge sensor and the new roll belt drive encoder and calculates new roll leading edge speed and position; and

    said computing device modulates the new roll speed to match the expiring roll speed; and

    said computing device modulates the new roll leading edge position so that when a pasting of the new roll to the expiring roll occurs, the new roll preprinted images are in alignment with the expiring roll preprinted images.

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