Copier document handler

Details Copier document handler Copier document handler

G - Physics

03

G

314/29, 95/33.8

G03G 15/04 (2006.01) G03B 27/62 (2006.01)

Patent

CA 1080783

ABSTRACT OF THE DISCLOSURE Improved document handling for a xerographic copier with automatic feeding onto, and ejection of documents from, a full size conventional document copying platen is provided by a vacuum belt system in a platen cover unit. The document support surface of the vacuum belt is spaced slightly above the platen for low friction document, yet maintained within copying focus. This document support and background surface of the belt is smooth, planar and continuous and stationary during copying so as to provide document flattening and allow document copying on the platen by the conventional stationary document copying optics. Book copying or manual copying can be provided on the same platen by pivotal removal of the platen cover unit away from the platen. A document pre-registration and skew-correction system is disclosed in which over-platen registration is not required. A pivotal system is also disclosed for limited lifting of the vacuum belt system for document ejection assistance.

241020

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