HP LaserJet Enterprise 600 Service Manual - Page 224

HP Jetdirect LEDs, Heartbeat LED, Connectivity LED, Administration, Network Settings, Jetdirect Menu

Page 224 highlights

HP Jetdirect LEDs The embedded HP Jetdirect print server has two LEDs. The yellow LED indicates network activity, and the green LED indicates the link status. A blinking yellow LED indicates network traffic. If the green LED is off, a link has failed. For link failures, check all the network cable connections. In addition, you can try to manually configure the link settings on the embedded print server by using the product control-panel menus. 1. At the control panel, press the Home button. 2. Open the following menus: ● Administration ● Network Settings ● Jetdirect Menu 3. Scroll to and select the Link Speed item, and then press the OK button. 4. Select the appropriate link speed, and then press the OK button. Heartbeat LED The heartbeat LED indicates that the formatter is functioning correctly. While the product is initializing after you turn it on, the LED blinks rapidly and then turns off. When the product has finished the initialization sequence, the heartbeat LED pulses on and off. If the heartbeat LED is off, turn the product power off, make sure that the formatter is fully seated, and then turn the product on. If the problem persists, the formatter might have a problem. Replace the formatter. Connectivity LED The connectivity LED provides information about product operation. If a product error occurs, the formatter displays a message on the control-panel display. However, error situations can occur causing the formatter to control panel communication to be interrupted. NOTE: HP recommends fully troubleshooting the formatter and control panel before replacing either component. Use the connectivity LED to troubleshoot formatter and control panel errors to avoid unnecessarily replacing these components. Formatter to control panel communication interruptions ● The firmware does not fully initialize and configure the control panel interface. ● The control panel is not functioning (either a failed component or power problem). ● Interface cabling between the formatter and control panel is damaged or disconnected. TIP: If the connectivity LED is illuminated-by an error condition or normal operation-the formatter is fully seated and the power is on. The pins for the LED circuit in the formatter connector are recessed so that this LED will not illuminate unless the formatter is fully seated. 200 Chapter 3 Solve problems ENWW

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HP Jetdirect LEDs
The embedded HP Jetdirect print server has two LEDs. The yellow LED indicates network activity, and
the green LED indicates the link status. A blinking yellow LED indicates network traffic. If the green LED
is off, a link has failed.
For link failures, check all the network cable connections. In addition, you can try to manually configure
the link settings on the embedded print server by using the product control-panel menus.
1.
At the control panel, press the Home
button.
2.
Open the following menus:
Administration
Network Settings
Jetdirect Menu
3.
Scroll to and select the
Link Speed
item, and then press the
OK
button.
4.
Select the appropriate link speed, and then press the
OK
button.
Heartbeat LED
The heartbeat LED indicates that the formatter is functioning correctly. While the product is initializing
after you turn it on, the LED blinks rapidly and then turns off. When the product has finished the
initialization sequence, the heartbeat LED pulses on and off.
If the heartbeat LED is off, turn the product power off, make sure that the formatter is fully seated, and
then turn the product on. If the problem persists, the formatter might have a problem. Replace the
formatter.
Connectivity LED
The connectivity LED provides information about product operation. If a product error occurs, the
formatter displays a message on the control-panel display. However, error situations can occur causing
the formatter to control panel communication to be interrupted.
NOTE:
HP recommends fully troubleshooting the formatter and control panel before replacing either
component. Use the connectivity LED to troubleshoot formatter and control panel errors to avoid
unnecessarily replacing these components.
Formatter to control panel communication interruptions
The firmware does not fully initialize and configure the control panel interface.
The control panel is not functioning (either a failed component or power problem).
Interface cabling between the formatter and control panel is damaged or disconnected.
TIP:
If the connectivity LED is illuminated—by an error condition or normal operation—the formatter is
fully seated and the power is on. The pins for the LED circuit in the formatter connector are recessed so
that this LED will not illuminate unless the formatter is fully seated.
200
Chapter 3
Solve problems
ENWW