Brother MFC-J6520DW - Prints Only Single Side of the Paper When Duplex-Printing

Confidential
2-60
4.2.6 Prints only single side of the paper when duplex-printing
User Check
- Set the driver settings to duplex-printing.
- Check if the recording papers are not overlapping each other. Shuffle the papers
thoroughly in the case of overlapping.
Step Cause Solution
1 Switching lever guide defective Replace the maintenance unit.
2 Main PCB defective Replace the main PCB ASSY.