HP Jetdirect 250m Print Server series - Manual (Page 86)

Is the Status light ON (solid green or intermittently flickering
green)?
Check the Status light on your print server. If all connections are working correctly, it should be ON solid
green (bright green in color and glowing continuously or flickering intermittently, but not blinking
regularly). If it is not ON (solid green or intermittently flickering), please follow the troubleshooting steps
below.
Status light latch button
Note: For all of the steps below, note that when you first apply power to a normally operating print server
(by plugging it in to the printer's LIO slot), the Status light will slowly blink green for several seconds
during self-test. When it has completed self-test, it will continue to blink green until you connect the
network cable. Once the print server establishes a valid network connection, the Status light will go ON
solid green; this indicates that the unit is ready for operation. Intermittent flickering (green) indicates
network activity.
1. Check that the printer's power cord is plugged in and that the printer is switched ON.
2. Check that the print server is seated firmly in the printer's LIO slot and that the network cable is
securely connected to the print server's network connector.
3. If that doesn't cause the Status light to come on (solid green or intermittently flickering green),
remove and re-insert the print server, as follows:
a. Disconnect the network cable from the print server.
b. Grasp and press the latch buttons (one on each side of the print server) and pull the print
server out of the printer's LIO slot.