Method and apparatus for individually inscribing printed products in an imbricated stream
AssigneeFerag AG
InventorBeat Frohlich
Life of this patent
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Abstract
This invention relates to a device for printing on printed products (20) which are transported past an ink jet writer (34') in an imbricated stream by means of a conveying device. A sensor (34, 35) triggers a writing operation of the ink jet writer when a printed product (20) has reached the writing area of the latter. Therefore, the printed products (20) can also be inscribed in an imbricated stream conveyed in a freely supported manner. The conveying device, in the area of the ink jet writer (34') is provided with means (12) which laterally displace the printed products individually during transportation of the printed products (20) in the imbricated stream.
Claims13
An apparatus for individually inscribing printed products (20) in an imbricated stream S, comprising an ink jet writer (34'), product conveying means (11, 12, 16) for directing the printed products past the ink jet writer (34'), a sensor (34, 35) for triggering a writing operation when a printed product (20) reaches the writing area of the ink jet writer (34'), said product conveying means including means (12) adjacent the ink jet writer (34') for laterally displacing the printed products individually during the transportation of the printed products (20) in the imbricated stream and so as to serially expose the side margins of the products and position each exposed side margin at said writing area of the ink jet writer.
A method for individually inscribing printed products in an imbricated stream, comprising the steps of:
- conveying the printed products in an imbricated stream at a predetermined speed along a first direction;
- deflecting the conveyed stream of printed products laterally so as to laterally displace the products and serially expose a side margin of each printed product while maintaining the stream imbricated and without rotating the printed products from their orientation prior to being deflected;
- and
- printing indicia upon the exposed side margin of each printed product.
Dependencies are inferred from the claim text.