Brother HL-8050N - Manual (Page 133)

5 - 27 TROUBLESHOOTING
Paper Jams in the Duplex Unit
1
Open the top cover.
Do not touch any parts inside the printer.
2
Hold the toner cartridge by the grip and pull it out slowly.
Then place it on a flat surface.
To prevent the toner from dirtying the surface, lay a piece
of paper on the surface before putting the toner cartridge
down.
3
Lift the lever at the top left hand side of the duplex unit to
unlock it and open the cover of the duplex unit.
4
Examine the interior of the duplex unit and remove any
jammed paper.
If paper is torn, check for any remaining torn pieces of
paper.