IMPROVED NON-KEY PRINTING MACHINE FOR NON-KEY LITHOGRAPH PRINTING

摘要

PURPOSE: To provide a keyless lithographic printing press retaining essential principle of keyless lithographic printing system by overcoming problems of prior art. CONSTITUTION: The keyless lithographic printing press comprises a blanket cylinder 10, a plate cylinder 15 with printing plate mounted thereon, a system 14 for supplying dampening water to the plate cylinder 15, a form roller 16 in rotational contact with the plate cylinder 15, an inking drum 11 in rotational contact with the form roller 16, first and second transfer rollers 13, 17 in rotational contact with the inking drum 11, a metering roller 20 in rotational contact with the transfer rollers 13, 17, and a system 30 for supplying printing fluid to the metering roller 20.