HP LaserJet Enterprise 700 color MFP M775 series - Manual (Page 271)

7. Open the jam-access door on the right side of
the high-capacity tray cabinet.
8. Lift up the jam-release plate and remove any
jammed paper.
9. Close the jam-access door on the right side of
the high-capacity tray cabinet.
ENWW Clear jams 257