Thanks for the additional information Charles. Have you shut down and restarted the printer? If you install a brand new tank(s), your printer should read it/them as empty, no matter that you’re trying to reset the first tank.
Is your printer saying all the maintenance tanks are full when you install one and close the door, or do you have a maintenance tank “error” on the printer’s LCD screen? Is the printer giving any errors or messages for any of the ink carts, or just the maintenance tank?
I would try removing the waste tank and leaving the door open (with cartridges installed, and cartridge bay door closed), then turn the printer off for about a minute. After turning it back on, the printer should indicate no maintenance tank. Now, install a new tank and close the door. If the printer continues reading new tanks as full, then it may be a printer issue and I suggest calling Epson to see if they have any suggestions. Epson will always try to blame every issue on the use of non-OEM carts, but if your carts are all reading correctly and your maintenance tanks are all reading full (not a different “error”), then what you’re experiencing is unrelated to using refillable carts, and you don’t even need to tell them what carts you’re using.
I hope this helps, best regards~ Dana