HP LaserJet Enterprise 700 color MFP M775 series - Manual (Page 261)

6. Align the fuser with the slots in the product,
and push it straight in until it clicks into place.
7. Close the right door.
Clear jams in Tray 1
1. If jammed paper is visible in Tray 1, clear the
jam by gently pulling the paper straight out.
ENWW Clear jams 247