HP Deskjet 6620 Color Inkjet Printer - Manual (Page 35)

Subnet: A small network that acts as part of a large network. It is recommended that
the printer and the computers that use the printer all be on the same subnet.
Subnet mask: A number that identifies the IP addresses that belong to a subnet.
Switch: A network device that manages network traffic in order to minimize collisions
and maximize speed.
t
TCP/IP: Transmission Control Protocol/Internet Protocol (TCP/IP) is the network
communication protocol used on the Internet. The printer's built-in networking
feature supports LANs that use TCP/IP.
u
Unicast packet: A packet sent from one device on a network to another device on
the network.
HP Deskjet 6600 series printer User's Guide
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