That is, as I think that HDR (note not HD or HDX) minus the orange and green inks is exactly the same as UltraChrome K3 Vivid , then I think that the MK inks should be the same. As I think that the only change between Ultrachrome non-K3 and K3 non-Vivid was the addition of LLK, then the same comment applies. Ditto for Ultrachrome non-K3 and K3 Vivid, since the magenta inks aren't relevant to you question.
But these are only impressions based on using these inks over time, i.e. I have no proof. For that you'd have to measure the inks.
---In DigitalBlackandWhiteThePrint@yahoogroups.com, <david@...> wrote :
My original question has gotten lost and this thread has taken off in a whole different direction. Let me rephrase it…
What I need to know is this: Can I put the older not-K3 Ultrachrome matte black Epson ink into my refillable Epson 3880 cartridges and expect it to be the same as the K3 matte black ink?
Also, can I put the HDR matte black ink into the same matte black cartridge for the 3880?
David Kachel