Patent ID: 8280263
Filing Date: 2012-10-02
Classification: B41J,B65H,G03G

Abstract:
1. A xerographic device adapted to print an image onto a copy sheet includes a system for detecting and separating multi-feeds, comprising: an imaging apparatus for processing and recording an image onto said copy sheet; an image development apparatus for developing the image; a transfer device for transferring the image onto said copy sheet; a fuser for fusing the image onto said copy sheet; and a copy sheet feeding apparatus including a multi-feed detection and separation system, said multi-feed detection and separation system including a paper detection sensor for detecting the presence of a copy sheet, at least three drive nips for driving copy sheets in a sheet feed direction, a gate supported on a shaft about which said gate is pivoted with said shaft being removed from the vicinity of and positioned downstream of a first of said at least three drive nips, a multi-feed sensor positioned downstream of a second of said at least three drive nips, said multi-feed sensor adapted to sense the presence of multiple copy sheets within said second of said at least three drive nips, said second of said at least three drive nips including a reversible pressure roll adapted to drive uppermost copy sheets of said multiple copy sheets in a direction opposite to said sheet feed direction and then drive the lowermost of said multiple copy sheets in said sheet feed direction.