This is a game changer. We were able to have our printer down for 2 weeks while our shop was closed and we didn't have to worry about our print head. We installed the solution and the new dampers ran the head cleans and drew through the waste and when we replaced the dampers with the ink ones, did a couple of head cleans and the first print off the printer was perfect. Definitely recommend and will continue to use whenever our shop is closed for holidays.