hp777HP 777 DesnJet Printhead (3EE09A) All tech specs; Product subgroup: Printheads. Selectability: 777. Case or master carton dimensions (W x D x H) 366 x 297 x 150 mmInstalling the firmware - HP PageWide Pro 700 Series Printer Firmware - (Must Read README Before Installing) - 006.2420A (LIMOFWPP1N006.2420A.00) - 109.4 MB -