Epson and other printers setup these devices to have a "zero tolerance" when it comes to ink. If one ink is out then the printer stops working. If one computer chip on a cartridge goes bad then the printer stops printing. If you get a new set of inks and one cartridge is damaged then the printer will not print.
Frankly, be smart, give yourself a fighting chance. Have stock of inks so you can swap cartridges if needed. Get a refund or replacement later, but keep yourself working now.
