But my printer is then too bad

The price was tempting, as I have attempted dared to try it with this toner. The onset was a little hard, but the cartridges are correctly listed. Shockingly, however, was the first sample print because the printer was doing really cracking noises. I have again taken out every single cartridge and re-used and made a second attempt - no change. After a re-exchange the originals all was well again in this regard. Too bad, because the term was perfectly fine, but I do not want to risk that the printer is damaged by the continued use of these probably not as compatible cartridges. I'll return them.