Resetting the 310x print server to factory defaults (cold reset)
Once you configure the print server, the configuration settings are retained in memory unless you
manually reset them to factory defaults.
To reset the HP Jetdirect 310x print server configuration to factory defaults, follow these steps:
Unplug the power cable from the back of the print server.
While holding down the test button on the rear end of the print server, plug the power cable
back into the print server and continue to hold down the test button for about five seconds. Any
user-configured settings will be erased.
Interpreting the configuration page 197