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Printing apparatus for printing plastic food bags

  • US 10,308,398 B2
  • Filed: 03/05/2018
  • Issued: 06/04/2019
  • Est. Priority Date: 12/30/2015
  • Status: Active Grant
First Claim
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1. A printing apparatus for printing on continuous plastic food bags, each of the continuous plastic food bags containing a printable area integrated in a plastic foil thereof, the printer apparatus comprising:

  • a plastic food bag holder for holding the continuous plastic food bags;

    a plastic food bag guiding mechanism for guiding the continuous plastic food bags from the plastic food bag holder in the direction of a plastic food bag printer, the plastic food bag printer comprising a printhead configured for direct thermal printing onto the printable area of each of the continuous plastic food bags;

    a plastic food bag transporting mechanism for pulling the continuous plastic food bags through the plastic food bag guiding mechanism towards the plastic food bag printer; and

    a plastic food bag ejector configured to detach an individual plastic food bag from the continuous plastic food bags,wherein the plastic food bag guiding mechanism comprises at least two guide walls along a feeding direction of the continuous plastic food bags, the at least two guide walls being displaced with respect to one another in a direction perpendicular to the feeding direction, andwherein the at least two guide walls comprise a first and a second upper guide wall and a first and a second lower guide wall that are disposed in order in the feeding direction as the first upper wall, the first lower wall, the second upper wall, and the second lower wall, wherein the printhead and the guide roller are disposed after the second lower wall in the feeding direction, and wherein the printhead is disposed below the guide roller.

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