There is a little chip inside the cartridge, EPSON's chip was cloned in China so you can use the third-party inks "safely", however it's not the case for HP. I

There is a little chip inside the cartridge, EPSON's chip was cloned in China so you can use the third-party inks "safely", however it's not the case for HP. I had not bought any HP products for 10+ years.