Xerox C3000 - Manual (Page 48)

Transmission
38
1
A
Place the original, and then select the scan settings you require.
B
Press [Original Feed Type].
C
Specify the original orientation.
Check the orientation of the placed document, and then press [
] or [ ] .
Make sure that the specified original orientation matches the orientation of
originals loaded in the ADF.
D
Press [2 Sided Original].