HP LaserJet 8000 Multifunction Printer series - Manual (Page 106)

Chapter 2 Printing Tasks 106
Printing Both Sides of Paper (Optional Duplex Printing Accessory)
Layout Options for Printing Both Sides of Paper
The four print orientation options are shown below. These options can be
selected from the printer driver or from the printer’s control panel (set
BINDING
from the Paper Handling Menu and ORIENTATION from the Printing Menu).
2. Long-edge
landscape
1. Long-edge
portrait (default)
3. Short-edge
portrait
4. Short-edge
landscape