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Interpret control panel messages
The majority of the control-panel messages are intended to guide the user through typical operation.
The control-panel messages indicate the status of the current operation, and include a page count on
the second line of the display, if appropriate. When the product is receiving print data or scanning
commands, control-panel messages indicate this status. In addition, alert messages, warning
messages, and critical error messages indicate situations that might require some action.
Control panel message types
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.
NOTE: Supplies status messages are listed and described in the “Print cartridges and imaging
drum” chapter of this document.
Control panel messages
Control panel message Description Recommended action
49 Error
Turn off then on
The product has experienced a firmware
error.
1. Turn off the power by using the power
switch.
2. If a surge protector is being used,
remove it. Plug the product directly into
the wall socket.
3. Wait at least 30 seconds, and then turn
on the power and wait for the product
to initialize.
4. If the error persists, contact HP. See
www.hp.com/support/
LJColorMFPM175 or the support flyer
that came in the product box.
50.X Fuser Error
Turn off then on
The product has experienced an internal
hardware error.
1. Turn off the power by using the power
switch.
2. If a surge protector is being used,
remove it. Plug the product directly into
the wall socket.
3. Wait at least 10 minutes, and then turn
on the power and wait for the product
to initialize.
4. If the error persists, contact HP. See
www.hp.com/support/
LJColorMFPM175 or the support flyer
that came in the product box.
142 Chapter 13 Solve problems ENWW