| 摘要 |
<p>The present invention provides a method for operating a sheet-fed offset press (1) so as to reduce the occurrence of spoilage caused by nonuniform printing. In this method, the timing of start of oscillating motion of oscillating rollers (15,16,17,18) is regulated. Also, the present invention provides an oscillation mechanism (306,307,308,317,321,322) for a sheet-fed offset press (1), in which less failure and wear occur, and a smaller force is required to accomplish a changeover from transmission to stoppage of oscillation and vice versa. <IMAGE></p> |
