Photocopying – Projection printing and copying cameras – Copying both sides of original
Patent
1979-12-10
1981-12-15
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Copying both sides of original
271 31, 271 4, 271 9, 271 65, 271163, 271186, 355 3SH, G03B 2732, G03B 2752
Patent
active
043056555
ABSTRACT:
A duplex printing arrangement is provided for printing on both sides of a plurality of rectangular sheets of paper, each of the sheets having a pair of parallel opposite edges which are shorter than the pair of edges perpendicular thereto. Each of the sheets is transported past a printer in a direction parallel to the longer pair of the edges of the sheet. The sheets are printed on a first side as they are moved past the printer with a first edge of the pair of shorter edges being the leading edge. The sheets are thereafter turned end-for-end and moved past the printer for printing a second side of each of the sheets, with the second printing pass being such that the first edge of each of the sheets is again the leading edge.
REFERENCES:
patent: 3905697 (1975-09-01), Komori et al.
patent: 3997263 (1976-12-01), Stemmle
patent: 4050805 (1977-09-01), Hage
patent: 4099150 (1978-07-01), Connin
patent: 4109903 (1978-08-01), Stange et al.
patent: 4116558 (1978-09-01), Adamek et al.
patent: 4140387 (1979-02-01), Gustafson
patent: 4158500 (1979-06-01), Di Francesco et al.
Gamblin Rodger L.
Wells Roger D.
The Mead Corporation
Wintercorn Richard A.
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