| 摘要 |
<p>Apparatus for printing images on certain randomly selected ones of the pre-printed pages comprising a web. The pages are attached to one another end to end to form the web. The apparatus imprints in specific defined areas on the pre-printed pages fixed data in a color other than the color of the pre-printed information on the pages. The apparatus comprises means for intermittently pressing the web against the plate means (53) on the imprint cylinder (19). <IMAGE></p> |
