Patent ID: 7916361
Filing Date: 2011-03-29
Classification: H04N

Abstract:
1. A double side image scanner comprising: a frame having a first and second major surfaces, the frame including a track for guiding a medium having a front surface, a rear surface, a leading end and a trailing end, the track including an entrance through which the medium is loaded and unloaded, a scanning line joined to the entrance so that the medium is scanned in the scanning line and a circuit line joined to the scanning line, the circuit line designed to return the medium to the scanning line, the circuit line having a junction point where the circuit line meets with the scanning line, an inlet through which the medium comes into the circuit line from the scanning line and an outlet through which the medium goes out of the circuit line toward the scanning line; at least one two-way roll feeder mounted to the first major surface of the frame for conveying the medium along the scanning line in a medium-loading direction and in a medium-unloading direction; at least one one-way roll feeder mounted to the first major surface of the frame for conveying the medium along the circuit line in the medium-loading direction; a driving means mounted to the frame for driving the two-way roll feeder and the one-way roll feeder; and an image sensor mounted to the first major surface of the frame along the scanning line for obtaining image data by scanning one of the front surface and the rear surface of the medium when the medium is loaded along the scanning line and by scanning the remaining one of the front surface and the rear surface of the medium when the medium is unloaded along the scanning line.