Press [Original Settng].
Press [Original Size].
Specify the original size, and then press [OK].
Select original orientation.
Press [OK].
Press [Auto Reduce / Enlarge].
Select the paper tray.
Place the originals, and then press [Start].
To copy originals onto paper, or originals onto paper, specify the original size in [Original Settng], and then press [Auto Reduce / Enlarge].
For details about the base point, see Reducing or Enlarging Originals.