[andrewia]

It seems unlikely that HP will add DRM after the fact. Even if the printer has the hardware capability to enforce DRM, it isn't upon release, so you could simply keep it VLAN-ed off of the internet so it can't update its firmware to a version that begins enforcing the DRM chips. Adding DRM would also create a subpar UX where old, DRM-less HP refills stop working because the firmware thinks they're knockoffs.