Two sided imaging of a continuous web substrate with a single pr

Electrophotography – Document handling – Copy

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399364, 399385, 399386, G03G 1500

Patent

active

058600531

ABSTRACT:
A continuous web substrate duplex printing system which can utilize a single otherwise conventional or existing xerographic, print engine (normally printing conventional cut sheet substrates) without substantial structural modification, and without requiring plural print engines on opposite sides of the web. The continuous web may be fed uncut into the print engine to two transfer stations alternatingly engaging a single endless belt imaging surface, which two alternating transfer stations are in line with one another in the direction of movement of the imaging surface, with web inversion and a controlled expandable/contractible web loop in between those two transfer stations, for respectively transferring the page print images onto the two respective sides of the continuous web in sequential batches of plural first and second side images, in the proper page sequence and positions and without any spaces between page images along the web.

REFERENCES:
patent: 3548783 (1970-12-01), Knapp
patent: 3940210 (1976-02-01), Donohue
patent: 5568245 (1996-10-01), Ferber et al.
patent: 5629775 (1997-05-01), Platteter et al.
Xerox Disclosure Journal, vol.9, No. 3, May/Jun., 1984, pp. 201-203 Method for Duplex Printing on Continuous Web Paper, by: E. McIrvine.

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