Brother HL-7050N - Manual (Page 83)

2 - 23 DRIVER AND SOFTWARE
HL7050_US_UG_FM5.5
If you constantly use only one interface, we recommend that you
select that interface as the default setting in the INTERFACE menu.
The printer allocates the entire input buffer to that interface when
only one interface is selected.
When you use the Automatic Interface Selection, note the
following:
■ This function takes a few seconds to work. If you want to
speed up printing, select the required interface manually in
the SELECT menu by using the control panel in the
INTERFACE menu.