After what seems a lifetime using HP printers (well two of them) I decided about four years ago to change to Epson. The printer was Ok, but the ink cartridges were very expensive and did not last very long. To cut down on expenses I started buying Geha replacement ink cartridges as they are about 10 Euro cheaper. In the last two years I have had no problems with them.
One of the reasons for the Epson originals not lasting so long is, so I am informed, that they have a chip in them that stops you using the last 10 to 15% of the ink "as a safety measure to stop damage to the print head".
I will be going back to HP when I get the next printer.