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Method for sorting mail pieces on a printing press

  • US 9,096,053 B2
  • Filed: 09/22/2011
  • Issued: 08/04/2015
  • Est. Priority Date: 09/22/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • creating a stream of uniquely-addressed mail pieces on a web offset press by printing repetitive static content on consecutive sections of a web of printable material with a pair of press rollers, printing unique address information on each section of the press-printed material, and separating the sections of the web, the printing of unique address information being carried out by controlling at least one variable printer according to a mail file of intended recipients;

    conveying the stream of uniquely-addressed mail pieces in a shingled formation; and

    performing an on-press conversion of the stream of uniquely-addressed mail pieces into a plurality of batches of stacked mail pieces in which each of the batches contains only mail pieces belonging to a common mail delivery group, the on-press conversion including;

    controlling via a controller the creation of batch separation points among the mail pieces according to the mail file,conveying the stream of mail pieces in the shingled formation directly into a backstop of a stacking device, andstacking the mail pieces with the stacking device by sequentially stopping the movement, in the direction of conveyance, of each mail piece at the backstop to form the mail pieces into a stack, piece-by-piece, in a direction perpendicular to the direction of conveyance.

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