Loading Paper onto the Front Tractor
Follow these steps to load paper onto the front tractor:
1.Turn off the printer, then open the printer’s front cover by lifting up the middle of its bottom edge until it locks in place, as shown below.
front cover 
2.Release the sprocket lock levers on both the right and left sprockets by pulling each lever down.
sprocket lock lever
cCaution:
Do not try to pull on or remove the elastic cord from the tractor.