Procedure for two-sided combine

Press [Dup./Combine/Series].

Press [Combine].

Select [1 Sided] or [2 Sided] for [Original:].

Press [Combine 2 Sides].

Press [Orientation].

Select [Top to Top] or [Top to Bottom] for [Original:] if the original is two-sided.

Select [Top to Top] or [Top to Bottom] for [Copy:], and then press [OK].

Under [Combine:] specify the number of originals to be combined.

Press [Original Orientation].

Select the original orientation, and then press [OK] twice.

Select the paper size.

Place the originals, and then press the [Start] key.