This article describes the method for gaining access to the TCP/IP Port Access list via the printer web page, and provides a brief description of the three available port security values.

Other current Lexmark laser printers provide a TCP/IP Port Access  link via Links and Index > Security. However, the C53x Series products may not have this option available.
However, if your C53x network code is NSF.NP.N031 or later, you can access the same page by entering http://<ipaddress>/cgi-bin/dynamicpf/pf/config/gen/ports.html (where <ip address> is the TCP/IP address of the printer).

Three TCP and UDP port security values are available: 

• Disabled - Never allows network connections to this port and disables the corresponding function.
• Secure and Unsecure - Allows the port to remain open even when a secure mode is active. 
• Unsecure Only - Port remains open only when printer is not in secure mode.  

Please contact Lexmark Technical Support for additional assistance.  NOTE:  When calling for support, you will need your printer model type and serial number.
Please call from near a computer and printer on the network in case the technician ask you to perform a task involving one of these devices.