Colour printing procedure controlled from video signal - involves using video signal to carry picture information that is converted to signals to control colour print drum or plate

摘要

The printing machine receives multiplexed video signals representing the image to be printed. The composite video signals are multiplexed in time and amplitude, and are delivered from a video camera or recorder. The signals pass through a sequential colour selector (2) sampling at more than 100Hz. The signals are then delivered to a plate (3) that converts the video signal to computer data and this controls a converter (4) that controls a print roller or plate. ADVANTAGE - Gives improved subtlety in colour printing and provides better quality, particularly with enlarged images.