B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
270/162
B65H 3/12 (2006.01) G03B 27/62 (2006.01) G03B 27/64 (2006.01)
Patent
CA 1212702
-1- ABSTRACT OF THE DISCLOSURE A document transport for transporting document sheets over a copier platen and into a registration position thereon for copying with a singlelight reflective, flexible, unapertured and air impervious wide frictional movable belt providing a uniform light imaging background for the document sheet, having a selectably actuatable vacuum system for selectably applying a vacuum to a vacuum plenum overlying the vacuum belt above the platen, for lifting all but selected minor areas of the belt away from the platen and document toward the vacuum plenum when a vacuum is applied, but and for allowing the belt to drop into planar engagement with a document sheet on the platen over a much larger area of said belt when the vacuum is removed, and belt deforming rollers deforming the selected minor areas of the belt away from the vacuum plenum towards the platen for selective area driving of a document sheet on the platen with these deformed minor areas or protuber- ances of the belt when the vacuum is applied.
434559
Gowling Lafleur Henderson Llp
Xerox Corporation
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