Brother GTX-4 Service Manual page 491

Connection to a PC
In the case of directly entering:
5) Enter the values of [IP Address][Subnet Mask][Default
Gateway] -> [Next]. The steps are completed when the
message [IP address was successfully assigned to the
Printer.] is displayed.
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In the case of auto acquisition:
5) Enter the hostname -> [Next]. The steps are completed
when the message [IP address was successfully assigned
to the Printer.] is displayed.