Patent ID: 6572100
Filing Date: 2003-06-03
Classification: B65H

Abstract:
In a document transport of the type in which individual documents are moved with an entrance transport up to a processing station, the entrance transport including a drive roller and an edge sensor for detecting document edges wherein the drive roller is controlled to rapidly decelerate a document to stop the document at a desired stop position in response to detection of a document edge by the edge sensor, the drive roller thereby providing the rapid deceleration of the document to a stop at the processing station and subsequent rapid acceleration of the document after processing, an apparatus for providing pinch force to a document abutting the drive roller comprising:a nozzle having an inlet and an outlet, the outlet facing the drive roller and spaced therefrom for permitting a document to pass therebetween to cause the document to be pinched between the drive roller and a fluid flow from the nozzle, the nozzle being directed such that fluid flow therefrom has a component normal to the drive roller to pinch the document, wherein the drive roller is controlled in a manner to rapidly decelerate the document to a stop and subsequently accelerate the document after processing at the processing station; and a source of compressed fluid coupled to the inlet of the nozzle.