HP Officejet 7500A Wide Format e-All-in-One Printer - E910a - Manual (Page 15)

Printing supplies area
1 2
1 Cartridge access door
2 Ink cartridges
Back view
4 3 2 1 5
1 Universal serial bus (USB) port
2 Ethernet port
3 Power input
4 1-LINE (fax)
5 2-EXT (phone)
Understand the printer parts 11