Patent ID: 9363899
Filing Date: 2016-06-07
CPC Classification: B05B,B41J,G01N,H01L,H05K

Claim Text:
1. A printing process for printing an ink pattern on a substrate based on an available pattern layout, in which the pattern layout defines a desired layout of the ink pattern to be printed comprising the steps of: providing an inkjet system comprising a framework for holding components of the inkjet system, a print head assembly for ejecting droplets of ink on a substrate, wherein the print head assembly is mounted to the framework, a scanning unit for scanning a printed ink pattern on a substrate, wherein the scanning unit is mounted to the framework of the inkjet system, and control electronics for controlling the inkjet system; providing a substrate to be printed; generating an input image for allocating dot positions of the ink pattern to be printed by the printhead assembly which input image is based on the pattern layout; printing an ink pattern onto the substrate based on the input image by the printhead assembly of the inkjet system; scanning the printed ink pattern by the scanning unit of the inkjet system for obtaining a scan image of the printed ink pattern; carrying out an in-line quality inspection on board of the inkjet system which is controlled by the control electronics of the inkjet system by comparing the scan image with the pattern layout to detect any print defects in the printed ink pattern and providing a decision on an approval or a rejection of the printed ink pattern on the substrate; and in case of an approval conveying the substrate from the inkjet system to a subsequent processing station, for further finishing the substrate or in case of a rejection discharging the substrate.