Web printing press and method for controlling print-to-cut and/or circumferential register
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United States of America Patent
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Apr 24, 2007
Grant Date -
Nov 9, 2006
app pub date -
Jul 11, 2006
filing date -
May 4, 2004
priority date (Note) -
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Abstract
A method for controlling a print-to-cut register in a shaftless web printing press having a first print unit having a first plate cylinder and first blanket cylinder for printing a web, at least one independent drive for the first print unit, and a folder having a cross cutter for cutting the web. The method includes printing the web using the first plate cylinder and first blanket cylinder so as to form at least one printed section of the web; sensing the print-to-cut register of the at least one printed section; and controlling the print-to-cut register of the first plate cylinder during printing via the first drive as a function of the sensing. The controlling includes pulling the first plate cylinder off impression and phasing the first plate cylinder with respect to the cross cutter using the independent drive. A method for controlling circumferential register and a printing press is also disclosed.
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