Several of the Grapo printers, now SigmaJet use the Xaar 1001 printheads. The Shark and Gemini to name 2. The Meital 304D also uses them. I think you will see a new announcement at Drupa. The Xaar 1001 is possibly the best technology currently available. They are in wide use in the ceramic industry. Xaar has recently quadrupled their manufacturing.