| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet-through original reader for not generating black stripes or the like on images even when dust, scratches and stains, etc., are generated on the upper surface and lower surface of contact glass. SOLUTION: In this original reader for reading an original by feeding it in the state of stopping an original read means at a prescribed original read position, at the time of performing read main scanning in the state of stopping the original read means at a prescribed sheet-through original read position so as to read the original, in the case that an abnormal value is detected in the read data values, by changing the stop position of the original read means for a prescribed distance, the original read position is changed according to the original reader.
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