Brother HL-8050N - Manual (Page 181)

A - 23 APPENDIXES
3
Push in the offset catch tray's extension.
4
Lift up the lower gray lever (1) at the top left corner of the
back of the printer to open the back cover (2).
5
Loosen the screws on both sides of the offset catch tray
(1), and then while holding up the offset catch tray, tilt it
forwards to remove the right and left tabs from the holes
at the top of the printer (2) so you can lift the tray off the
printer.
6
Insert the right and left tabs of the top cover of the paper
exit, which were removed during installation of the offset
catch tray, into the holes at the top of the printer.
Reconnect the AC power cord to the printer,
and then the AC power outlet/socket.
Turn the printer switch back on.