Lexmark 4064-210 MS821n

Sensor tests

For non-touch-screen printer models, press to navigate through the settings.

1. Enter the Diagnostics menu, and then navigate to:
   Output device diagnostics > Sensor tests
2. Select the output device where the sensor is located.
3. Find, and then manually toggle the sensor.

Notes:

• The sensor status on the screen toggles between 1 and 0 when the sensor is properly working.
• If a sensor test fails, the test failure may not indicate a failed sensor. Further troubleshooting may be required. Check the boards and cables for possible issues.