@SublimationMike Just replying to your comment since I have experience with the one time chips for my WF-7840. You can keep using the same cartridges to refill the ink but have to replace the chips once the ink cartridge is low. I tried them but after a few head cleanings the black cartridge was already reading low without me even having printed any designs so basically was wasted money for me. If a chip resetter exists for that printer, that would be the only way to keep reusing those same chips.