I have carefully read the refillable cartridge instructions for the P400 printer, but I still don’t have a good mental model of how the printer interacts with the chips on the IJM carts. According to the instructions, the PRINTER decides when a cart is empty (whether or not it is actually empty) and turns on the ink light above that cart. When you replace an “empty” cart with an IJM cart, the chip is reset to full.
Here is a scenario: I have three sets of carts: the OEM carts (which I have not yet removed from my new P400), a set of carts with piezography inks, and a set of carts with piezoFlush. I will remove the OEM carts, and replace them with new IJM carts filled with piezography ink. I assume the carts will initially read as full, although I’m not sure how that happens, since the ink lights weren’t on. Before taking a summer vacation, I will remove the piezography carts and replace them with new IJM carts filled with piezoFlush. Again, I assume the newly-installed carts will read as full. A month later, I’ll swap the piezoFlush carts for the piezography carts. The printer will read the current ink levels on the chips. I can continue swapping until eventually, the printer decides some cart is empty. At this point, I can refill the cart and re-insert it, which resets the chip to full.
I’m asking is if my understanding is correct. For example, there’s no need to pry off chips and replace them, or anything like that (as mentioned in other forum posts). And there’s no chip resetter for the P400 cartridges, so I’ll be refilling as dictated by the printer.