yes, this is what i wanted to do, but im reading about dye, pigment, ink nozzle and stuff and im confused 🤣 now printer has original ink inside, 664 is third party inl. can i refill direct , can those two mixed?I don't see a problem with swapping the inks - you can turn off the bottle heads of the 104 bottles with some force and fill the 664 inks into them.