G - Physics – 03 – B
Patent
G - Physics
03
B
270/15
G03B 27/62 (2006.01) B65H 5/22 (2006.01) B65H 9/16 (2006.01) B65H 9/20 (2006.01) B65H 20/10 (2006.01) B65H 23/038 (2006.01) G03B 21/00 (2006.01) G03B 27/64 (2006.01) G03G 15/00 (2006.01)
Patent
CA 1306762
-1- ABSTRACT OF THE DISCLOSURE In an automatic document handling system for a copier, with a system for feeding and registering document sheets, including a platen transport system, wherein the platen transport system includes a document belt system and a vacuum system for retaining documents against the document belt system, the improvement including common document input and path systems for feeding either conventional document sheets or computer form or other web (CF) documents, the document belt system comprising relatively low friction belt material, the vacuum system automatically maintaining a first vacuum level high enough to retain the conventional document sheets against the document belt system with sufficient force to resist slippage and function as their primary platen transport system, and a vacuum reduction system for automatically reducing the vacuum to a substantially lower level for CF documents which provides for slippage of CF documents relative to the document belt system, and a separate deskewing and driving system for the CF documents in cooperation with the platen transport system, for deskewing the CF web upstream of the platen and pulling it through the platen transport system from downstream thereof, to provide a dual mode system in which the platen transport system provides for low frictional relative movement and an imaging background surface for CF documents, but is not their primary transport. There is also a system for automatically sensing the acquisition of CF documents and in response automatically reducing the vacuum level and disengaging additional roller drive systems in the path which normally engage conventional document sheets.
558763
Sim & Mcburney
Xerox Corporation
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