COLOR DENSITY MEASUREMENT DEVICE IN PRINTING MACHINE AND PRINTING MACHINE PROVIDED WITH COLOR DENSITY MEASUREMENT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a color density measurement device in a printing machine which can perform highly accurate color measurement without carrying out complicated operation while having an advantage at a cost, and the printing machine provided with the color density measurement device.;SOLUTION: In the color density measurement device in the printing machine which keeps imaging means 9 arranged for imaging a printed paper during the printed paper printed by a printing impression cylinder 7D and conveyed is discharged, and measures the color density of the printed paper imaged by the imaging means 9, the imaging means 9 for imaging the whole area of the printed paper and a spectroscopic colorimeter for measuring the color density of a basic color patch comprising a colorbar of the printed paper are arranged on the conveyance path of the printed paper printed by the printing impression cylinder 7D with color matching control means 13 installed for carrying out matching of color data of the imaging means 9 on the basis of the color density measured by the spectroscopic colorimeter.;COPYRIGHT: (C)2010,JPO&INPIT