| 摘要 |
<p>Production of monochromatic and multi-colour reproductions and of colour separation images is carried out by projecting images by means of ultraviolet or short-wave visible light by way of mirrors or prisms onto photoconductor layers positioned on the surface of one or more synchronously rotating cylinders of exactly equal dimensions to which are coordinated additional cylinders in order to achieve the emission of secondary electrons. Images are assembled on common support.</p> |
