Printing machine with laser perforating
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United States of America Patent
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Dec 26, 2017
Issued Date -
N/A
app pub date -
Apr 14, 2005
filing date -
Apr 22, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
There is described a printing machine for printing sheets, in particular sheets for the production of securities, banknotes, passports, ID cards and other valuable documents, comprising at least a sheet feeder, a printing unit, a delivery unit with delivery piles for the printed sheets and a sheet transport system for transporting the printed sheets along a transporting path from the printing unit to the delivery piles. The printing machine further comprises a laser perforating unit with at least one laser head disposed along the transporting path of the sheet transport system for perforating the printed sheets, and a first aspiration unit to maintain the printed sheets against an aspiration surface during perforation by said laser perforating unit.
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