Lexmark MS821n
Service menus. Diagnostics menu. 7. Additional input tray diagnostics
Sensor tests
For non-touch-screen printer models, press [OK] to navigate through the settings.
- Enter the Diagnostics menu, and then touch Additional input tray diagnostics.
- From the Sensor tests section, touch Start.
A dialog listing the sensor tests appears. - 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.
List of sensor tests
- Pick roller index (tray [x])
- Media out (tray [x])
- Pass‑through (tray [x])
- Media size (tray [x]) switch [x]
- Pick (tray [x])
Motor tests
For non-touch-screen printer models, press [OK] to navigate through the settings.
- Enter the Diagnostics menu, and then navigate to:
Additional input tray diagnostics > Motor tests - Select a motor, and then press or touch Start.
Notes:
- If the motor is activated, then it is properly working.
- Some motors require automatic deactivation in order to avoid secondary issues such as possible damage and contamination.
- Some tests require a special action to activate a motor such as removing a major component.
- If the motor fails, the test failure may not indicate a failed motor. Further troubleshooting may be required. Check the boards and cables for possible issues.