What should be top of printer manufacturers’ R&D lists these days? News of the speedy SolJet Pro4 XR-640 Roland machine has made me ponder the question given my visits to various other machine makers, where much is still being been made of developing faster printers. But should that be their priority. In the Widthwise Survey conducted by Image Reports in the spring, lower machine running costs came out top of the innovation wish list  – and in terms of the biggest technical issue being faced, it was machine reliability! So is there a better way for the grassroots to feed back to the manufacturers?