HP Color LaserJet Enterprise Flow M776z All-In-One Laser Printer - Manual (Page 67)

Table 2-16 Prepunched-landscape
Duplex mode Paper size How to load paper
1-sided printing A4, Letter Face-down
Holes at the left side of the tray
Automatic 2-sided printing or with
Alternative Letterhead Mode enabled
A4, Letter Face-up
Holes at the right side of the tray, with the top of the form to the
right side
ENWW Load paper to the 2,700-sheet high-capacity input paper trays 53