Patent ID: 8196511

Claim:
A process for overprinting of already printed packages, comprising the steps of: overprinting a new printing onto a site to be overprinted on a box by driving a print head against a surface of the box; drying, checking, and packaging the box, wherein an automation line is used, comprising: an unstacker ( 3 ) configured to automatically feed a plurality of boxes; at least one print head ( 1 ); at least one drying tunnel ( 4 ); and at least one re-stacker ( 5 ), wherein the unstacker comprises a cage ( 12 ) and a plate ( 11 ), wherein the plate ( 11 ) moves back and forth between the cage ( 12 ) and the print head ( 1 ), and wherein the print head ( 1 ) overprints the box directly on the plate of the unstacker.