one of the E-2621 ink cartridges leaked all over hands on the desk, on the printer installing my printer Epson XP-800 detection incompatible cartridge. Continuously anyway ..... poor deplorable impression, trace, malformed characters nozzle check, head cleaning, head alignment, After printing 4 pages of text, the E-2621 cartridge is half empty !!! and the printer demand change all other colors (they were all full to 3/4 before mounting the cartridge E-2621) Cartridge Change 2631 2632 2633 2634 and E-2621 !!!! Nozzle Check, head cleaning, head alignment, print a page: poor quality, track ...... After 2 pages of text all cartridges have lost 10% of their capacity !!!! In conclusion I would order only original supplies