HP LaserJet Pro M1536dnf MFP SERIES - Manual (Page 67)

Paper type How to load paper
Prepunched ● Face up
● Holes toward the left side of the product
Envelope ● Face up
● Left short edge leading into the product
NOTE: Use the priority input slot for printing one envelope or other special media. Use Tray 1 for
printing multiple envelopes or other special media.
ENWW Supported paper types and tray capacity 53