hp 777Find full product specifications and compatibility information for your HP PageWide Pro 777 Multifunction Printer series.HP 777 DesnJet Printhead, HP DesnJet Z6 Pro, Z9+ Pro Printer, 146.8 mm, 131.4 mm, 27.7 mm, 82 g, 146.8 mm Long summary description HP 777 DesnJet Printhead :