Tray 1 is accessed from the front of the product. The product prints from tray 1 before attempting to print from other trays.
Tray 1 holds up to 50 sheets of 75 g/m2 (20 lb) media or five envelopes, ten transparencies, or ten cards. You can use tray 1 to print the first page on media different from the remainder of the document.
Media guides ensure that the media is correctly fed into the product and that the print is not skewed (crooked on the media). When loading media, adjust the media guides to match the width of the media that you are using.