Document edge registration system

Details Document edge registration system Document edge registration system

G - Physics

03

G

314/29

G03G 15/00 (2006.01) B65H 9/16 (2006.01) G03B 27/53 (2006.01) G03B 27/62 (2006.01)

Patent

CA 1245707

-1- ABSTRACT OF THE DISCLOSURE A document feeder for feeding a document sheet in a document feeding path downstream to a registered copying position on the platen of a copier, with deskewing and edge registration (document registration transverse the direction of the document feeding path to the platen) upstream of the platen, with a skewed roller edge registration system for feeding the document transversely as well as downstream, and wherein a large radius non-skewed arcuate document guide path provides an arcuate document deforming portion of the document feeding path, the improvement wherein an arcuate document edge confinement and control is provided along the edge of the arcuate document guide path, preferably by a document edge guide having a narrow and smooth-bottomed arcuate slot adapted to receive, confine closely, and edge register the document therein, sliding it along the bottom of the slot, and the skewed rollers are mounted in and intermediately of the arcuate document guide path for providing both edge registration and deskewing of a document therein by transverse movement of the document into alignment with the document edge guide while the document is arcuately deformed in both the arcuate document guide path and the document edge guide, and another document feeder is provided for feeding the document into the arcuate document guide path and into the skewed rollers with a system for auto- matically preventing interference with the transverse movement of the document by the skewed rollers.

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