Hello, you have to differentiate between HP+ and HP Instant Ink. HP+ is the free upgrade that makes your new HP printer even smarter - with enhanced functions, automatic updates, improved security and much more ¹. ¹ HP+ - the smarter printing system: Based on the use of technology in the HP+ system and compared to standard HP consumer printers without HP+. HP+ printers are ready when you are - with improved connectivity through Smart Driver and Print/Scan Doctor technology. They're also more secure with Smart Security technology, more productive with HP Smart Advance functions. As far as I remember, only original cartridges can be used after HP+ registration. With the Instant Ink plan you have a monthly quota of pages included for X amount, additional pages cost extra. The advantage is that you no longer have to buy cartridges for a lot of money and the cartridges are always full. But to be on the safe side, please check the HP website again.