HP LaserJet Pro 400 Printer M401 series - Control panel message types

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Control panel message types

The control panel messages indicate the current product status or situations that might require action.

Alert and warning messages appear temporarily and might require you to acknowledge the message

by pressing the

OK

button to resume or by pressing the Cancel button to cancel the job. With

certain warnings, the job might not complete or the print quality might be affected. If the alert or

warning message is related to printing and the auto-continue feature is on, the product will attempt to

resume the printing job after the warning has appeared for 10 seconds without acknowledgement.

Critical error messages can indicate some kind of failure. Turning off and then turning on the power

might fix the problem. If a critical error persists, the product might require service.