Patent ID: 8430401
Filing Date: 2013-04-30
Classification: B65H

Abstract:
1. A paper deskew device for use in an automatic document feeder to correct a skew phenomenon of a paper fed into said automatic document feeder, said paper deskew device comprising: a transport roller assembly comprising: a deskew roller assembly disposed on said shaft, and comprising a first deskew roller, which is sheathed around said first end of said shaft, wherein a movement of said paper is firstly driven by said first deskew roller and then driven by said first transport roller, wherein before said movement of said paper is driven by said first deskew roller, said first deskew roller is rotated in a second direction, wherein once a front edge of said paper is contacted with said first deskew roller, said first deskew roller is continuously rotated in said second direction for a predetermined time period, and then said first deskew roller is rotated in said first direction, so that said paper is transported to said first transport roller, wherein after said paper is completely departed from said first deskew roller, said first deskew roller is rotated in said second direction again, wherein said first direction is opposed to said second direction.