Brother HL-2460 - Manual (Page 136)

4–4
D D u u p p l l e e x x U U n n i i t t ( ( D D X X - - 4 4 0 0 0 0 0 0 ) )
The Duplex unit is an optional device that allows printing on both sides of
pages. When it is installed, you can select either duplex printing or simplex
printing from the control panel or with a software command as follows.
For
more information about the control panel, see PAPER mode in Chapter 3.
To install the duplex unit, please see the Duplex Unit User’s Guide.
Fig. 4-2