I recently bought a 3800 from epson.
I had not decided on the ink system and ordered some refill carts from China.
I had used another ink company on my 2200, 2400 and later 2880. quite pleased.
Decided to move to Conecolor and ordered a set of 220 inks.
The chinese carts arrived and I filled them, and of course installed the proper chips. All except one which is a brand new Epson EK cart.
Fired up the printer and it did its line filling etc. All carts registered.
I made two 8x10 prints and was very pleased.
Decided to see what volume of ink had been used in the set up so opened the cart cover. Did not touch or move any.
Closed the cover and none of the carts is registering. Including the epson one.
Read various posts and then tried the printer reset procedure.
No luck. no carts are recognised!!!
What to do?