HP LaserJet 4345 HP LaserJet 4345mfp - User Guide - Page 232
Understanding lights on the formatter, HP Jetdirect LEDs, Heartbeat LED
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Understanding lights on the formatter Three LEDs on the formatter indicate that the MFP is functioning correctly. 1 2 3 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