HP Color LaserJet 2550 Printer series - Manual (Page 20)

Note Because an HP Jetdirect print server is not included with all models, it is referred to as the
optional HP Jetdirect print server in this documentation.
1
2
3
1 parallel port (IEEE-1284B)
2 high-speed USB port
3 10/100Base-T port (HP color LaserJet 2550Ln and 2550n printers only)
10 Chapter 1 Printer basics ENWW