Follow the steps below:

1. Open the Duplex unit by lifting the catch.

    

   

2. Open the Right cover by lifting the catch.

    

   

3. Remove the jammed paper from inside the Right cover.

    

   

4. Close the Right cover before closing the Duplex unit.

    

5. If the jammed paper is inside the Multi-purpose tray, while lifting the Paper guide lever (1), remove the jammed paper (2).