METHOD FOR OPERATING A CIJ PRINTER WITH OPTICAL MONITORING OF PRINTING QUALITY, CIJ PRINTER WITH OPTICAL MONITORING OF PRINTING QUALITY AND METHOD FOR TEACHING A CIJ PRINTER WITH OPTICAL MONITORING OF PRINTING QUALITY

摘要

A method is provided for operating a CIJ printer with an optical monitoring means (80) with the steps of generating a bitmap (90, 180) of the print image to be printed, sequential control of charging electrodes (25) and / or deflection electrodes (30) of the CIJ printer, in order to realize points or groups of points of the bitmap (90, 190) by applying ink drops (12) to a substrate (100) to be printed and thus sequentially to apply a real print image (195) to the substrate (100), detecting the the real print image (195) applied to the substrate (100) with the optical monitoring means (80), and automated comparison of the bitmap (90, 190) of the desired print image and the real print image applied to the substrate (100) recorded with the optical monitoring means (80) (195), in which the automated comparison of the bitmap (90, 190) of the desired print image and the real print image applied to the substrate (100) ds (195) takes place either on the basis of rows or columns of the bitmap (90, 190) or on the basis of components of rows or columns of the bitmap (90, 190), a CIJ printer for carrying out such a method and a method for teaching an optical one Monitoring means (80) of such a CIJ printer