Patent ID: 6746013
Filing Date: 2004-06-08
Classification: B65H,H04N

Abstract:
An automatic document feeder, combined with an optical machine module for feeding a manuscript to pass through a scanning area that the optical machine module can capture image, comprising:a delivery route being a passage that has a paper inlet and a paper exit therein and passing through the scanning area, and a paper output drawer installed by the paper exit, and guiding the manuscript passing through the scanning area; a return route being a passage communicated with the delivery route and being arranged in an inner of the paper output drawer, and enabling the manuscript to be guided from the return route back to the delivery route after entering the delivery route and passing through the scanning area, and passing through the scanning area again; a guiding-out route being a passage communicated with the delivery route for guiding the manuscript passing through the scanning area again and eventually leading out of the paper exit; a paper feeding mechanism utilized to feed the manuscript from the paper inlet into the delivery route for outputting the manuscript from the paper exit; a guiding element installed between the delivery route and the return route, and enabling to be moved to a first position that the manuscript can be output from the paper exit directly, and a second position that the manuscript can be guided into the return route in an alternative manner; a sensor installed in the return route and sensing whether the manuscript passes to control the guiding element to be alternatively arranged at the first position and the second position; a first guiding plate installed at an insertion that the return route guiding into the delivery route, and enabling the manuscript moved out of the return route to be guided back to the delivery route, and to pass through the scanning area again; and a second guiding plate installed at an insertion of the guiding-out route, and enabling the manuscript pass through the guiding-out route.