Back and side view 9 10 16 11 12 15 13 14 Figure 5. Back and side view 9 Fuser pressure release levers 10 Straight-through output door 11 On/off switch 12 Power receptacle 13 USB port 14 Parallel port (HP LaserJet 1150 printer) LIO connectivity slot (HP LaserJet 1300 series) 15 HP Jetdirect print server (HP LaserJet 1300n printer only) 16 Parallel LIO adaptor (HP LaserJet 1300 series) ENWW Overview of printer 21