Ah. Agreed. Then let's solve the problem of printers altogether. Why let them enforce the use of only certain ink refills? Surely that also is monopolistic behaviour?

In markets in SE Asia, I've seen people still use older Canon models because it allows them to fill their ink cartridges and beat the cost of having to buy official ink cartridges. Those printer still work well afterwards. A business I once consulted for had a 10 years old printer that still was chugging on happily with cheap ink fills.