I have used the cartridge and could also print several times properly. After about 5 Print However, the flashing light, indicates that a cartridge error, constant, even though the cartridge is not empty. I tried everything: remove cartridges, clean cartridges, printer clean ... nothing helps. I can say with 100% certainty it that it is up to the black print cartridge and am really ettäuscht that I as a defective goods have received for 10.40 (incl. Shipping)!
