I am also once fell for it on the so-called test, and have not the cheapest but already bought ink tanks which were well rated. The problem is now eliminated that the cartridges were not made properly and have the corresponding bad sitting. Result was that I needed a new printhead because the corresponding head was dried and was nothing more. Experiences with the filled tank's I also can do professionally by two A3 printers were then broken as was leaked in this ink. After disaster with in other areas Laser printers has placed only on the original then the employer. That was really because we had no more failures. Original Ink Original Ink remains and must be replaced with nothing. A print head will cost about 100 euros and for that you can buy enough ink. Also, there is still the research on the net that show where the ink can be shopped accordingly low. In my experience with Amazon is there buying always on the safe side and clearly recommended. The can. There are also online stores that similar procedures and if the trust by other purchases that did not fit right then it goes there.