Printek Mobile Thermal Printer MtP300 Series Operator's Manual page 36

Printer Configuration
Tunnel Port Number
Possible Values: 00000 ... 08023* ... 65384
This feature specifies the TCP/IP port to be used for data that is to be printed..
To advance through the character positions, press the
position, press the Increment Button.
30
Tunnel Port#
08023
Advance Button. To change the character at the current