Cartridge yields: Yields are based on ISO 24711 in default mode, printing continuously. Yields vary considerably due to print images, settings and temperatures. Printing infrequently or primarily with one colour reduces yields. All cartridges must be installed with ink for printing and printer maintenance. For print quality, some ink remains in replaced cartridges.
Designed for EPSON cartridges only: Other brands of ink supplies are not compatible and, if described as compatible, may not function properly or continuously. Such restrictions can be avoided with some other printers such as Epson EcoTank cartridge free printers.
Firmware updates: Epson periodically provides firmware updates to address issues of security, performance, minor bug fixes and ensure your printer functions as designed. Your printer was designed to work only with genuine Epson ink cartridges, therefore some updates may affect the functionality of third party ink.
More info at epson.com/inkinfo