HP Jetdirect 250M User Manual page 227

Can you print a Jetdirect configuration page?
To print a configuration page, press the Test button on the print server.
Test button
A configuration page should print on the connected printer. This page
displays information about the print server hardware, the firmware version,
the hardware (MAC) address, the connected printer, network connectivity,
network traffic, and network protocols.
Did the configuration page print successfully?