Lexmark 4064-210 MS821n

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

1. Enter the Diagnostics menu, and then navigate to:
   Printer diagnostics & adjustments > Motor tests
2. Select a motor, and then touch Start.

Notes:

• If the motor is activated, then it is properly working.
• Some motors require automatic deactivation 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.
• To stop a running motor in non-touch-screen printer models, press [OK].

List of motor tests

• MPF pick
• Pick (tray 1) picking
• Pick (tray 1) lifting
• Fuser (fusing)
• Fuser (retracting)
• Duplex
• Redrive (forward)
• Redrive (reverse)
• Imaging unit
• K toner add
• Fan (main)
• Fan (cartridge)