Using this unit can increase the number of loadable sheets by up to 250.
Front View

Rear View

Tray 2/Tray 3
Load paper here. If you want to print on paper larger than A4 or letter size, pull the tray extension out.
Tray 2: When two paper feed units are attached, the upper tray is referred to as Tray 2.
Tray 3: When two paper feed units are attached, the lower tray is referred to as Tray 3.
Rear unit cover
Open to remove paper that has jammed inside the paper feed unit.