[yegle]

This is still possible today. Costco has an ink refill service [1], which I assume should support all printers they sell.

[1]: https://costcoinkjetrefill.com/

[tomc1985]

Its not a perfect match as the inkjet refills are provided by another company (called RIS) but it does cover a lot of printers and has the ability to re-chip many cartridges that are protected from reuse that way