HP LaserJet 4345 Multifunction Printer series - Manual (Page 232)

Understanding lights on the formatter
Three LEDs on the formatter indicate that the MFP is functioning correctly.
1
3
2
1 HP Jetdirect LEDs
2 Heartbeat LED
3 Fax LED
HP Jetdirect LEDs
The embedded HP Jetdirect print server has two LEDs, one for each possible link speed.
When an LED is lit, the print server is functioning correctly. A link failure is indicated when
both LEDs are off.
For link failures, check all of the network cable connections. In addition, you can try to
manually configure the link settings on the embedded print server by using the MFP
control-panel menus.
1. Touch Menu.
2. Touch CONFIGURE DEVICE.
3. Touch I/O.
4. Touch EMBEDDED JETDIRECT MENU
5. Touch LINK SPEED. Select the appropriate link speed.
Heartbeat LED
The heartbeat LED indicates that the formatter is functioning correctly. While the MFP is
initializing after you turn it on, the LED blinks rapidly, and then turns off. When the MFP has
finished the initialization sequence, the heartbeat LED pulses on and off.
If the heartbeat LED is off, the formatter might have a problem. Contact an HP-authorized
service or support provider. See the HP support flyer, or go to
http://www.hp.com/support/
lj4345mfp .
218 Chapter 10 Solving problems ENWW