Duplo DF-870 Automatic Paper Folder (Discontinued)The Duplo DF 870 Automatic Paper Folder is a welcome addition to Duplo's line of tabletop folding machines. Like the DF 850, the 870 has the patented Duplo feed system, but more importantly the DF 870 features fully automated set up with 6 pre programmed folds. Fast and easy setup is done via the control panel, simply enter the paper size and the fold type and the ejection roller automatically moves into the proper position.