I have now tested the cartridges a few weeks and am very satisfied. Both text and images when I can not see any difference from the original cartridges. The quality of the ink seems the original also outdone in anything. Last point I'm convinced that in the ink is not blurred at highlighter markers - a phenomenon which I have often observed in compatible cartridges from other manufacturers.
I would recommend the Hainsberger cartridges without reservations!