Solution
You can make 2-sided copies from 1-sided documents (MF8350Cdn).
1. Place originals on the platen glass or load them in the feeder.
2. Press [

].
3. Press [

] (2-Sided).
You can display the setting screen also by selecting <2-Sided> in the copy mode screen.
4. Select <1-> 2-Sided> with [

] or [

], and then press [OK].

If you want to specify 2-Sided copying format:
(1) Select <Format Settings> with [

] or [

], and then press [OK].
(2) Select the orientation of the original document with [

] or [

], and then press [OK].
(3) Select the finishing format with [

] or [

], and then press [OK].
5. Press [

] (Color) or [

] (B & W).