HP Jetdirect 250m Print Server series - Manual (Page 101)

I/O card not ready
Check the following items to see whether you can correct the "I/O Card Not Ready" situation. (If you have
already performed these steps earlier in the troubleshooting process, you can skip them and go directly to
answering the question at the end of the steps.)
1. Make sure that the network cable is connected securely to the print server.
network cable
2. Check that the network cable is plugged securely into the hub/switch/router, and that the
connection is set to the correct network speed.
3. Check that the LINK light is ON for the port on the hub/switch/router to which the print server is
connected.
4. Your network cable may be faulty. Try a different cable.
5. If the light still does not come on, try a different port on the hub/switch/router.
If you made any changes, please print another configuration page. Does the page show I/O
Card Ready now?