HP Color LaserJet Enterprise CM4540 MFP series - Manual (Page 308)

Interpret control-panel messages
Control-panel message types
Four types of control-panel messages can indicate the status of or problems with the product.
Message type Description
Status messages Status messages reflect the current state of the product. They inform you of normal product operation
and require no interaction to clear them. They change as the state of the product changes. Whenever
the product is ready, not busy, and has no pending warning messages, the
Ready status message
appears if the product is online.
Warning messages Warning messages inform you of data and print errors. These messages typically alternate with the
Ready or status messages and remain until you touch the OK button. Some warning messages are
clearable. If the Clearable Warnings menu in the Display Settings menu is set to the Job option , the
next print job clears these messages.
Error messages Error messages communicate that some action must be performed, such as adding paper or clearing
a jam.
Some error messages are auto-continuable. If the Continuable Events menu in the Display Settings
menu is set to the Auto-Continue option, the product continues normal operation after an auto-
continuable error message appears for 10 seconds.
NOTE: Pressing any button during the 10-second auto-continuable error message overrides the
auto-continue feature, and the button function takes precedence. For example, pressing the Stop
button pauses printing and offers the option to cancel the print job.
Critical-error messages Critical error messages inform you of a product failure. You can clear some of these messages by
turning the product off and then on. These messages are not affected by the
Auto-Continue setting. If
a critical error persists, service is required.
Control-panel messages
The product provides robust control panel messaging. When a message appears on the control panel,
follow the on-screen instructions to resolve the issue. If the product displays an “Error” or “Attention”
message, and no steps are shown to resolve the issue, turn the product off then on. Contact HP support
if you continue to experience issues with the product.
To get additional information for warnings that appear in the status line, touch the Warning button .
For additional information on a variety of topics, touch the Help button in the upper-right corner of
the home screen.
288 Chapter 14 Solve problems ENWW