Sharp MX-M850 - Manual (Page 620)

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Enable EtherTalk
To use the machine on an EtherTalk network, this
setting must be enabled.
Enable NetBEUI
To use the machine on a NetBEUI network, this setting
must be enabled.
Reset the NIC
This returns all "Network Settings" to the factory default
settings.
Ping Command
Use this function to check if the machine can
communicate with a computer on the network.
Specify the IP address of the desired computer and
touch the [Execute] key. A message will appear
indicating whether or not the computer responded.