The Device appears to experience all of the motions of printing but no ink arrives out. I have cleaned each of the tubes and may suck/squeeze ink through. The ColDesi UV 300H3F features the tallest print area on this list, with as many as 9 inches of printing height. MTuTech https://knoxjdvme.thekatyblog.com/33112387/detailed-notes-on-hybrid-uv-printer