Originally posted by AfterPentax Mark II It is not the cartridge that is regionalized, but the printer. It was an Asia specific model.
I suppose that's true. The printer only takes 810 and 811 cartridges, which are identical to 210 and 211 (and undoubtedly others) except the embedded chip in the cartridges prevent cross-use with otherwise identical printers (e.g. MX420).
---------- Post added 02-27-23 at 01:55 PM ----------
Originally posted by Not a Number I should think a tank printer would not be regionalized for ink. How would the printer test where the ink was from unless there are chips or RFID on the ink bottle or some sort of marker in the ink itself that gets checked when you refill the tank.
Evidently some ink bottles have a keyed mechanism for connecting them to the recipient tanks for filling. Not sure if that's to prevent cross-usage of pigment vs. dye inks or if it's about regionalization. But for a clue I looked at ink specified for HP Smart Tank 7301 and 7305 printers, which appear to be identical except for different markets (7301 is available in the U.S., 7305 is available in Europe) and the ink bottles specified for the two printers is different. So I'm suspicious...