The printer posts a Service Fuser 121.xxA error message. The error may be due to a poor voltage line (power strip or overloaded circuit).
The most common error codes that may appear on the printer display are:
Make sure the printer is plugged directly into a wall outlet.
Turn the printer Off and turn it back On after a few seconds.
If the issue persists, search for more information related to this issue or contact support for further assistance.
LEGACY ID: SO8878
121.71A or 121.xx error code
Lexmark CX/CSx3x , MC/C3xxx and XC/C2326: 110.31A Service Printhead Error