HP Color LaserJet Enterprise M750 Printer series - Manual (Page 37)

Paper orientation for loading Tray 2, Tray 3, or optional Trays 4, 5, and 6
Paper type Image orientation Duplex mode How to load paper
Preprinted or letterhead Portrait 1-sided printing Face up
Top edge at the back of the tray
Automatic 2-sided printing Face down
Top edge at the back of the tray
Landscape 1-sided printing Face up
Top edge toward the right side of the tray
Automatic 2-sided printing Face down
Top edge toward the right side of the tray
Prepunched Portrait 1-sided printing Face up
Holes toward the left side of the tray
Automatic 2-sided printing Face down
Holes toward the right side of the tray
ENWW Load paper trays 27