1 Fax port (f, c, and z models only. The port is covered for the dn model.)
2 Local area network (LAN) Ethernet (RJ-45) network port
3 USB port for connecting external USB devices (this port might be covered)
NOTE: For easy-access USB printing, use the USB port near the control panel.
4 Hi-Speed USB 2.0 printing port
4 Chapter 1 Printer overview ENWW