Ricoh Aficio 6110 Operating Instructions Manual page 85

Reference
For functions that cannot be used together with this function,
The resulting copy image will differ according to the direction in which you set your original (lengthwise p or
widthwise l).
Originals
*1 The illustrations show the directions of copied images on the front and back, not the directions of delivery.
1
Press the [Duplex/Combine] key.
2
Press the [1 Sided
Orientation
2 Sided] key.
Duplex—Making 2 Sided Copies
see page 106.
Result*1
69