Priority input tray
The priority input tray holds up to 10 pages of 20 lb paper or one
envelope, transparency, or card. Load media with the top forward
and the side to be printed facing up. To prevent jams and
skewing, always adjust the side media guides.
If you try to print on media that is wrinkled, folded, or damaged in any
way, a jam might occur. See
Printer media specifications
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. This helps
prevent multiple sheets of media from feeding through the printer at
one time, reducing media jams.