I used lavaink.com when they were eco solvent plus. They worked good. I was told that the Ultra inks were not compatible with the Plus inks, not so. I think Roland and Mutoh just wanted to get rid or their stock. I am using Ultra inks now and they are very good but the price went up. I get Ultra inks from Gregory. I will try Lavainks again.
you keep taking the chip or card of sticker from the oem cart and put it on the 3 party ink. if you llok at mutohs oem cart. on the back side of where they put there ship is a cutout and a screw hole were roland places their chip they are all the same. When i put new ink in i just take the card off of the empty one and put it on the new one.