HP 220240 - Manual (Page 36)

2.6.1 Selecting Facedown Printout (Top Output Tray)
Use the following procedure to select the top output tray for facedown
printing.
1. Set the printout selector to the duplex/facedown position.
MLO-005123 (Figure 2-8; 16 picas)
2. Fold in the extension tray.
MLO-005124 (Figure 2-9; 16 picas)
Operating Information 2–9