HP Color LaserJet Enterprise Multifunction M680 Printer series - Manual (Page 34)

Table 2-2 Tray 2 and the 500-sheet trays paper orientation (continued)
Paper type Image orientation Duplex mode How to load paper
Automatic 2-sided printing Face-down
Top edge toward the back of the tray
Prepunched Portrait or landscape 1- or 2-sided printing Holes toward the back of the tray
22 Chapter 2 Paper trays ENWW