I'm on a PX-5600 model Epson printer, the equivalent of the 2880 here in Japan. The carts installed and work well, and the color inks have been fantastic.
Problems: Initially, the ink level indicators read full upon switching to the reffil. carts. Great! But . . . there was no warning of impending need of refill, and the carts run completely empty. OK. Read manual, figure out how to refill, ensuring ink gets into the circle area of the cart using the vacuum method. That, however, is much easier said than done! In my opinion, the system is just flat broken.
When putting ink into the carts, it's impossible to tell if ink gets into the circle chamber because the ink tends to bubble and makes a mess of the whole cart, thereby not allowing enough light to enter whereby to tell if the chamber is properly filled or not. I've many times put the cart back in the printer, thinking it was filled, and indeed it was not.
I've now tried many times to get the ink into the chamber, unsuccessfully. Once you've tried to fill and not gotten ink into the chamber, then you have to go through a pain in the butt process of trying to empty the cart completely so the vacuum method can be tried again.
Honestly, unless there is some good advice on how to make this process work better, I will be demanding some sort of compensation. It's a shame, too, because the ink is good, and I really, really, really wanted the refillable ink cart system to work.
Thanks for any advice,
Edit: Just tried again, and the problem is "clear". The vacuum method does fill the chamber, but only with bubbles that make it appear full. It is only apparent when peeling back the label from the opposite side that says not to remove. The system is just broken.
Edit 2: Well, perhaps these are cart malfunctions??? I inserted two Epson carts to replace the refillables, and continued my print job. Soon, two other refillable carts suddenly read empty, however, the circle chambers were not emptied, and normal refilling went smoothly and upon replacing, the carts read as full. Two carts, however, upon reading empty were entirely empty and no procedure has been able to get ink back into those chambers. Yes, in case one will ask, I am plugging the air vent hole using electrical tape, as per the instructions.