Service Manual
Page 388
... main thermistor. 50.6: An open fuser error has occurred. 50.7: A fuser pressure release mechanism failure has occurred. 2. Reseat the connectors (J1002 - K) between the laser/scanner and DC controller PCB. 3. Control panel message 50.X FUSER ERROR For help press 51.1Y PRINTER ERROR For help press alternates with the fuser. See Installing a flash memory card (HP Color LaserJet 4700 Series only) on page 539. A laser error has occurred...
... main thermistor. 50.6: An open fuser error has occurred. 50.7: A fuser pressure release mechanism failure has occurred. 2. Reseat the connectors (J1002 - K) between the laser/scanner and DC controller PCB. 3. Control panel message 50.X FUSER ERROR For help press 51.1Y PRINTER ERROR For help press alternates with the fuser. See Installing a flash memory card (HP Color LaserJet 4700 Series only) on page 539. A laser error has occurred...