I’ve got a 4880 with refillable cartridges running epson ink. I’m having an issue with the Light Black cartridge. The printer says “set ink cartridge”. The cart is full of ink and I’ve replaced and reset the chip multiple times. I also had this issue with the Vivid Light Magenta, but I was able to put some tape on the top side of the cartridge so it sat in the printer a little tighter. I also tried this with the LK cartridge, but it doesn’t seem to be doing the trick.