| 摘要 |
PROBLEM TO BE SOLVED: To prevent the distortion of a copied image caused by the dispersion of document speed by reducing the carrying force when the trailing edge of a document goes through a roller stepwise, dispersing the sudden change of feeding force when the trailing edge of the document goes through in the axial direction and restraining the unevenness of carrying speed to the minimum in the case of ejecting the document from an exposure part. SOLUTION: As for a carrying roller 43 and a pressure roller 41 carrying the document to the exposure part, the difference of distance from the pressure roller 41 to each exposure position is given to the pressure roller group 41 nearest to the exposure position (41-e<41-c or the like). Thus, the sudden change of the feeding force is restrained and the distortion of the copied image is prevented.
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