I keep reading that this printer will print 2 sides from the ADF tray, but for the life of me I cannot find the 2-2 setting. 
I would like to place a document in the ADF tray, with print on both sides, and after pressing "Start", I will get a copy on a single piece of paper with both sides printed.
Any assistance is greatly appreciated.

I would like to place a document in the ADF tray, with print on both sides, and after pressing "Start", I will get a copy on a single piece of paper with both sides printed.
Any assistance is greatly appreciated.