Solving Jams During Two-Sided Printing on Brother Printers

Jams specific to duplex printing point to the printer's internal flip mechanism rather than the main paper path, which needs a slightly different fix.

Symptoms to look for

• Jams only occur when two-sided printing is selected
• Single-sided prints work perfectly fine
• Paper emerges partially printed or crumpled from the duplex unit

What causes it

A dirty or worn duplex roller, paper that's too heavy or too light for reliable flipping, or humidity affecting paper stiffness are the primary causes.

How to fix it

1. Remove and inspect the duplex unit (usually slides out from the back of the printer).
2. Clean the duplex rollers with a lint-free cloth.
3. Confirm your paper weight is within the manufacturer's supported range for duplex printing.
4. Reinsert the duplex unit fully until it clicks into place.
5. Test with a small batch before running a full duplex job.