Port 9100 - This protocol is also known as AppSocket, RAW, or Windows TCPmon. This setting turns the protocol On or Off. The default value is On.

Page Description Language - Select the language you want the printer to receive on the Port 9100 port. If you select AutoSelect, the printer automatically senses the language of the print job and processes it accordingly.

Filtering - This field allows you to select whether or not the printer strips out control characters. Options are InterpreterBased or None. In most cases, Filtering should be set to None.