HP Deskjet 5850 Color Inkjet Printer - Manual (Page 75)

Network Name (SSID)
A network name, or “Service Set Identifier (SSID),” identifies a particular wireless
network. In order to operate on a network, a device must know the network's
network name.
A wireless network only has one network name.
A given location, such as an office, may have several wireless networks, each with a
different network name. Wireless devices use network names to identify overlapping
wireless networks.
example
The printer is in an office with two wireless infrastructure networks. Each network has
a Wireless Access Point (WAP) .
In this example, both wireless networks have the same security
settings.
1. network name equals “network_1” 2. network name equals “network_2”
The network name for one wireless network is network_1. The network name for
the other wireless network is network_2.
The printer receives signals from both networks, network_1 and network_2.
the printer is configured for network_1
The printer's network name (SSID) setting has been configured for network_1. The
printer can only communicate to network_1. In other words, the printer can only
accept print jobs from network_1.