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Tools for troubleshooting
The section describes the tools that can help you solve problems with your device.
Individual component diagnostics
LED status
Understand lights on the formatter
The LEDS on the formatter indicate basic product functionality and may be used for troubleshooting.
1
HP Jetdirect LEDs
2
Connectivity LED
3
Heartbeat LED
Heartbeat LED
The heartbeat 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
assembly. Use the heartbeat LED to troubleshoot formatter and control panel errors to avoid
unnecessarily replacing these assemblies.
Heartbeat LED
The heartbeat LED operates according to the product state.
ENWW
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Tools for troubleshooting
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Table of Contents
Troubleshooting
