Installation 1 Attaching the power cord 1 Locate the standby button (power switch) on the front of the printer. 2 The standby button has two positions: in (power on) and out (standby mode—the fans remain on). Make sure that the standby button is out (standby mode). 3 Locate the power cord on the back side of the printer for the HP Color LaserJet 4500, 4500N, 4550 and 4550N printers or on the duplex unit for the HP Color LaserJet 4500DN, 4550DN and 4550HDN printers. Connect the power cord to the power receptacle on the back of the printer. 2 3 50 Installation and configuration C7085-90921