Printronix Integrated Network Interface Card - Manual (Page 57)

Windows Network (NetBIOS TCP/IP)
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Windows Network (NetBIOS TCP/IP)
TCP/IP is used for Windows (i.e. Windows NT, Windows 95, and
Windows for Workgroups) printing unless another protocol like IPX
is available. Therefore, mandatory TCP/IP settings (i.e. IP address
and subnet mask) are necessary on the NIC. Go to "TCP/IP
Network" on this form to fill in these settings if you haven't done so
already.
Figure 11. Setting Windows Protocol
Workgroup Name
This name specifies which Windows workgroup the NIC will reside
in.