printing down machine working principle

How it works: the use of pressure (including atmospheric pressure and mechanical stress), the film version of the photosensitive close fit, and exposure in the special light source, making the PS version of photosensitive film on a chemical reaction that converts the original image precisely on the sun Built on the photosensitive version. PS version of the film and a snug fit, then UV exposure.
     There are two main sound proofing quality:
     1 vacuum, film and PS version of the tightness of fit.
     2 light, the wavelength in the ultraviolet range, as "pure."
     Features:
     1 use hard metal sensitive version;
     (2) the use of high-power light sources operating in cool bright room;
     3 original and photographic material with the original big secret imaging.
     Copy the meaning and effect: In the printing process, the copy is an important part of a nexus. Before the step of problems, in part be offset by the copy, then the special requirements of the printing process, can be adjusted to resolve the copy process. Thus, the copy quality has a direct impact on the quality of the final print.