Pre-collation copying

Details Pre-collation copying Pre-collation copying

G - Physics

03

G

314/29, 95/33.4

G03G 15/22 (2006.01) G03B 27/62 (2006.01)

Patent

CA 1080784

ABSTRACT OF THE DISCLOSURE Automatic pre-collation document copying in which the documents are loaded upon, and automatically recirculated by, an elongate, windable, air permiable document holding web. These documents are primarily retained between the turns of a spaced pair of oppositely wound scrolls of the web without the use of a vacuum. The web has a minor intermediate unwound segment extending between the two web scrolls where the documents are intermittently exposed for copying by appropriate optical systems for projecting the document images onto a xerographic drum or belt or other imaging surface. The documents are retained on this intermediate segment by a vacuum applied to the opposite side of the web. A drive is provided for recircu- latingly winding and unwinding the web between one web scroll and the other so as to recirculatingly expose, in sequence, the individual documents on the web as they appear on the unwound intermediate web vacuum segment. The documents are thereby exposed in the pre-collated order in which they are loaded onto the web, or/and the reverse to produce corres- pondingly pre-collated copy sheets. - 1 -

246630

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