| 摘要 |
PURPOSE:To avoid the genertion of uneven rotation even with a thick original with folds and creases, by providing a support member supported shakingable at a location shifted from a line at a right angle on the surface of the original through the center of a roller. CONSTITUTION:When a support member 20 is pushed from a roller 19 against a tensile spring 23, the support member 20 shakes by taking an axis 21 as the center. When the member 20 is shaken, a distance l2 between axes of the roller 19 and a timing disc 26 is shorter than the distance between axes l1 at normal state. A pulley 25 moved with the shaking of the member 20 depresses a belt 24 and gives a tension to the belt 24 causing deflection due to shortened axial distance. |
