| 摘要 |
A double side image scanner includes a case having a medium guide track with a reference loading line, a main frame mounted inside the case, a first roll feed including a first feed roller mounted on a front side of the guide track and a first idle roller disposed above the first feed roller for cooperating with the first feed roller to load the medium, a second roll feed including a second feed roller mounted on a rear side of the guide track and a second idle roller disposed above the second feed roller for cooperating with the second feed roller to load the medium, a drive device for rotating the first feed roller and the second feed roller, first and second image sensors for scanning opposite surfaces of the medium to acquire image data, and a tracking device for biasing the medium toward the reference loading line.
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