HP LaserJet M1319f Multifunction Printer - Manual (Page 50)

Media guides ensure that the media feeds correctly into the product and that the print is not skewed.
Tray 1 has side and rear media guides. When loading media, adjust the media guides to match the
length and width of the media that you are using.
NOTE: When you add new media, make sure that you remove all of the media from the input tray and
straighten the stack of new media. Do not fan the media. This reduces jams by preventing multiple
sheets of media from feeding through the product at one time.
40 Chapter 6 Paper and print media ENWW