Lexmark CX725
StepĀ 1
Check the sensor cable for proper connection and damage, and replace if necessary.
Does the problem remain?
Go to step 2.
The problem is solved.
StepĀ 2
Replace the sensor. See Sensor (weather station) removal.
Contact the next level of support.
Additional requirements for Educational station issues
Lexmark CX/CS72x and XC/Cxxxx: Print Quality Diagnosis ? Printer Not Printing Black