I have not clue as I've never worked with these new Bravo printer. Only the old one. There might be a Prism in the cart that can read the level of the ink. I really do not know if there are any physical differences between the Primera and Lexmark equivalents or how it recognized between a primera and a Lexmark. If you put both carts side by side, can you see a difference? Barcodes, connectors contacts, anything?
I heard that you can refill the Primera cart but then the printer will not register it as being full.
One question I have is, here in the USA Primera Bravo II carts and Lexmark equivalent are almost the same price. Depending where you buy them. However, refilled or remanufactured lexmark equivalents are about 1/4 the price. What is the price for the Bravo 4100 carts vs Lexmark equivalent?