Original cartridge. I use an Epson Stylus DX 4450 that makes the mouth fine with the so-called cartridges "compatible" and does not accept or recognize the original cartridges. In the past I had some important bugs that made me fear the worst for trying the so-called compatible cartridges. Moral: Now I only use the original cartridges, they had long provided to keep the printer connected, otherwise the automatic head cleaning consumes a lot of ink, reducing the life of the cartridges. Eliseo M. ALVAREZ. Clermont-Ferrand.