Ricoh Aficio 551 Copy Reference Manual page 142

Copying
B
Press the [1 Sided] key for the original, then press the [Combine 2 Side] key for
the copy.
2
C
Press the [16 Originals] key, then press the [OK] key.
D
Check the orientation.
Note
To change the copy orientation to "Top to Bottom", press the [Orientation]
key and select [Top to Bottom]. See
Originals".
E
Press the [OK] key.
F
Select the paper.
G
Set your originals, then press the {Start} key.
126
P.110 "Specifying Orientation of Bound