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error HP

Error Code Amber glows across large light bar centered with flashes at edges

There is a serious printer error, and the condition will require turning off printer then on again to resolve.

? What Causes This

Critical malfunctions not covered by less severe alerts or status indicators.

How to Fix It

Turn off printer completely by unplugging power cord. Wait 10 seconds before reconnection to allow system reset. Observe error codes upon restarting system.

Source: page 15 of the official manual

From the manual

Manual page 15 — HP error Amber glows across large light bar centered with flashes at edges

This error code appears in:

HP Envy 6400E All-in-One Series Printer