HP LaserJet Enterprise 700 color MFP M775 series - Manual (Page 253)

4. Lift the jam-access door, and remove any
jammed paper.
To avoid damaging the original document if it
is difficult to remove, rotate the green wheel at
the front of the document feeder to move the
paper in the reverse direction.
5. Close the document-feeder cover.
NOTE: To avoid jams, make sure the guides in the document feeder input tray are adjusted tightly
against the document. Remove all staples and paper clips from original documents.
NOTE: Original documents that are printed on heavy, glossy paper can jam more frequently than
originals that are printed on plain paper.
ENWW Clear jams 239