Method and apparatus for reproducing colour separation pictures by scanning.

摘要

Each of original pictures is pasted up to a mask sheet in which respective trimming areas corresponding to each of said original pictures is transparent and other areas thereof are made of a material having high reflective coefficient, according to a desired layout, and the mask sheet is set up on the scanning drum of the colors scanner to carry out photoelectric scanning, and then a picked up signal basing on difference in scanning light beam reflection level between the trimmed areas of the original pictures and the areas having high reflective coefficient, is appropriately switched to exposingly record the desired color separation picture image and/or a mask pattern.