Tools for troubleshooting
The section describes the tools that can help you solve problems with your product.
Individual component diagnostics
LED diagnostics
LED, engine, and individual diagnostics can identify and troubleshoot product problems.
Understand lights on the formatter
Three LEDs on the formatter indicate that the product is functioning correctly.
1
2
3
1 Connectivity LED
2 Heartbeat LED
3 HP Jetdirect LEDs
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.
ENWW
Tools for troubleshooting
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