I recently bought Magenta and Lt. Magenta chips for the Epson 4800 I recently acquired.
I bought it used to use a custom black ink set in it. I also have an Epson 4880 that I use for color printing.
For a trial run, my plan was to take a set of empty cartridges from my Epson 4880, which other than the magenta pair uses the same cartridges.
And clean and refill them with the new inks. Since I only had the 4880 magentas I bought the 4800 magenta and lt. magenta chips from you, and swapped them onto the 4880 magenta carts.
Unfortunately after doing this I received the invalid ink error on the magenta cartridges.
Over the weekend, I was was able to borrow a pair of the correct 4800 magenta cartridges the T606B and T606C.
The printer is perfectly happy with these cartridges. I then swapped the carts with the new chips into the printer and the error comes back.
Unfortunately I don't have set of the old cartridges, the T5653 T5656 to verify that I can use those with the current epson T606x for the 4800.
The product pages specifically mention that your chips can be used to replace dead OEM chips. I read that as being able to work alongside other current OEM chips with the new part numbers.
Any advise would be appreciated.