USB light OFF
for HP Jetdirect 175x external print server/Internet connector for USB and HP Jetdirect 310x external print server/Internet connector for
USB
If the USB 
light is OFF, it means that the print server’s USB connection is not operational. This is OK before the print server finishes starting up (whether or not a USB cable is attached). If the light remains OFF after startup, then the print server may be faulty.
Please restart the print server by detaching the power cable and
light to stop blinking (when the
Is the USB 
light now ON solid green?
If yes, click on the Yes button to return to the Troubleshooting Overview page and continue with the next step of the troubleshooting procedure.
If no, your print server has a problem that requires assistance from HP Jetdirect technical support; click on the No button for information on contacting HP.
