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Lexmark C950

Lexmark C950

Testing Printer to Server Communication with the Use of Telnet on Certain Product Generations


A telnet communication test helps exclude printer hardware as causation for network communication or network printing issues.

Common behaviors for when to consider this test:

  • Print Release's LDSS system is busy and preventing the printer's ability to retrieve print jobs.
  • A printer is not responding to queued print job(s) on a print server.
  • Point and print is unable to locate the printer to complete driver installation and configuration.
  • Inconsistent printer-to-server network communication; thiscan also signal duplicate IP address situations.

Affected products



in the title section above to see a full list of printers compatible with this test procedure.

Opening a telnet session and pinging a server

Before you begin, you will need to obtain your printer and server's TCP/IP address. The Network Settings page can be printed to obtain the printer's IP address and C:\ipconfig /all is a typical command used for obtaining the server's IP address.

  1. Open a command prompt by entering CMD or command prompt from Start > Run (Search).

  2. From a command prompt (C;\), type: telnetprinter's TCP/IP_address10000.

  3. Successful telnet will be identified by a LXK: prompt.

  4. From LXK:, type ping server's TCP/IP_address.

  5. Observe packets transmitted, packets received, % packets lost, and excessive latency (ms), which can signal network saturation or collision issues.

Still need help?

If you require additional assistance, please close this window, go to your product's support page and locate

Get In Touch with Lexmark! for contact information.
When calling for support, you will need your printer model/machine type and serial number (SN). Please be near the products described in this article to expedite the support process and reduce call-back situations.


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