Calibration of colour measuring devices in a printer

摘要

The method involves exchanging data over a communication connection (18) by a colored inaccurately measured color measuring device (7) e.g. red, green, blue (RGB) camera, and a colored accurately measured color measuring device (8) i.e. spectral color measuring head. The inaccurately measured color measuring device is calibrated by the data of the accurately measured color measuring device. The inaccurately measured color measuring device is provided in a printing machine i.e. sheet-fed offset printing machine, and printing substrates (14) i.e. print sheet, are detected in the machine.