Patent ID: 6935237
Filing Date: 2005-08-30
Classification: B41C,B41N,G03F

Abstract:
1. A plate-making system in which a light-sensitive lithographic printing plate carrying an interleaf paper superimposed thereon and/or an original plate for making a dummy plate carrying an interleaf paper superimposed thereon are processed in a plate-setter provided with an automatic interleaf paper-removing mechanism and an automatic developing machine, the system being characterized in that it comprises a means for detecting the presence of any interleaf paper on the light-sensitive lithographic printing plate and/or the original plate for making a dummy plate or a means for discriminating the interleaf paper, the light-sensitive lithographic printing plate and the original plate for making a dummy plate from one another, said means for detection or means for discrimination being disposed downstream of the automatic interleaf paper-removing mechanism.