| 摘要 |
The present invention provides an image scanner comprising a housing having a transparent platform installed on it for placing a document, a calibrating area installed in the housing at a front end of the transparent platform, and a scanning module movably installed in the housing for scanning the document on the transparent platform. When performing a preview scan, the scanning module at a front end of the housing will move backward to scan the calibrating area to calibrate the scanning module and then scan the document on the transparent platform. When performing a formal scan, the scanning module that is stopped at a rear end of the housing will move forward to scan the document and stop at the front end of the housing.
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