It’s negligible revenue and carries some risk. Say the printer works well, and these enthusiasts drive a couple of thousand more cartridge sales. And that encourages someone to develop an alternative cartridge, which is mechanically and electrically compatible with HP’s.
It just seems easier to fire off a cease and desist than to take a risk of other people messing around with your ecosystem.
It just seems easier to fire off a cease and desist than to take a risk of other people messing around with your ecosystem.