PRINTING METHOD AND PRINTING DEVICE FOR REALISING THE SAME

摘要

The method for printing is carried out by creating pressure pulses at individual points of an ink layer which has been applied onto the surface of a continuous smooth plate, focusing a light beam of a laser on those points from the side of the opposite surface of the plate. Pressure pulses are developed due to the light hydraulic effect at the border of the surface of a plate, made of transparent material, and a layer of ink applied thereon, or due to the conversion of light radiation into acoustic when the light beam of the laser is absorbed by material which is not transparent for its wavelength. The printer has means for deflecting the light beam over the surface of the plate to excite pressure pulses in the ink layer at points predetermined by a program.