Back view
1 Power input
2 Ethernet network port (HP Officejet Pro L7500)
3 Rear USB port
4 Fax ports (1-LINE and 2-EXT)
5 Rear access panel (HP Officejet Pro L7300)
6 Automatic two-sided printing accessory (duplexer),
(HP Officejet Pro L7500)
6
5
2
3
1
4