HP 310X - Manual (Page 162)

Check the print server’s I/O status.
for HP Jetdirect 175x external print server/Internet connector for USB
and HP Jetdirect 310x external print server/Internet connector for USB
Check the I/O status of the print server by following these steps:
Print a Jetdirect configuration page. To print the page, press the test
button on the print server.
test button
If the configuration page does not print, click here for help in
getting it to print.
1.
On the configuration page, check that the print server reports its
status as “I/O Card Ready”. The Status entry is the first entry in the
General Information section, in the upper left portion of the page.
Status entry
2.