!
error Brother
Error Code Jam 2-sided
Paper is jammed in the duplex (2-sided printing) unit.
? What Causes This
Paper feed error during automatic double-sided printing, or torn paper in the duplex unit.
✓ How to Fix It
- Follow the error message on the LCD.
- Open the appropriate cover and carefully remove any stuck paper or debris from the duplex unit.
- Close the cover and resume operation.
Source: page 16 of the official manual
From the manual