Patent ID: 6672581
Filing Date: 2004-01-06
Classification: B65H

Abstract:
A sheet conveying apparatus for an image information processor, comprising:a sheet conveying unit disposed on a sheet conveying path provided between a sheet supply opening and a sheet discharge opening for conveying a paper sheet in one direction; a driving unit for driving the sheet conveying unit; and a sheet separation roller, a sheet registration roller, a scan roller, and a sheet delivery roller disposed on the sheet conveying path for rotation; said driving unit including: a driving motor controlled to change driving modes thereof in forward and reverse directions; and driving means for receiving a driving force of the driving motor, and for selectively performing combined driving of the sheet separation roller, the sheet registration roller, the scan roller, and the sheet delivery roller in mutual operations thereof, according to a sheet conveying process, with a driving force of the driving motor; wherein said driving means includes a power switching device for selectively transferring a rotational force to one of a first power transmission system and a second power transmission system according to the driving mode of the driving motor; and wherein the power switching device includes: first and second power switching gears connected to an output shaft of the driving motor; and first and second cam gears linearly movable in the rotation shaft directions of the first and second power switching gears so as to move forward and backward in opposite directions relative to each other according to the driving modes of the forward and reverse directions.