Patent ID: 7588246
Filing Date: 2009-09-15
Classification: B65H

Abstract:
1. A paper transportation device comprising: a paper feed tray on which papers to be transported are stacked; a paper discharge tray where transported papers are discharged; a transportation path arranged to connect the paper feed tray and the paper discharge tray; a separating roller and a separating pad arranged to separate a plurality of sheets of papers picked up from the paper feed tray one sheet at a time and to feed the papers one sheet at a time into the transportation path; a separating pad holder arranged to hold the separating pad such that the separating pad is contacted against and separated from the separating roller; a coil spring arranged to urge the separating pad holder to contact the separating pad against the separating roller under a prescribed separation pressure; a separation pressure adjusting screw arranged to adjust the separation pressure by changing a compressed amount of the coil spring by changing a screwed-in amount of the screw; and a screw adjusting hole arranged in a top surface of the separating pad holder so as to adjust the screwed-in amount of the separation pressure adjusting screw from above.