Brother DCP-8020 - Manual (Page 62)

5 - 2 MAKING COPIES
Temporary copy settings
You can improve your copies by using the temporary copy keys
(
Copy ): Enlarge/Reduce , Contrast , Quality , Tray Select ,
Sort and N in 1 (For DCP-8020) or Duplex/N in 1 (For
DCP-8025D). These settings are temporary, and the DCP returns to
its default settings 1 minute after it finishes copying. If you want to
use these temporary settings again, place the next original in the
ADF or on the scanner glass within that time.
Temporary Copy Keys