Follow the procedure bellow:

1. Turn the printer power switch off, and then unplug the power cord from the AC outlet.

    

2. Close the Front Cover, Multi-purpose Tray, Face Up Output Tray and Extension Flap.

    

3. Lift the printer carefully with both hands and place it onto the lower tray unit. Make sure that the alignment pins on the lower tray unit are positioned into the guide holes in the base of the printer.
   

4. To install the Lower Tray Unit, refer to the instructions supplied with the Lower Tray Unit.

    

5. After installing the Lower Tray Unit, press Auto Detect in the Accessories tab of the printer driver.

    

   

6. Change the Paper size, Media Type and Paper resource setting in the printer driver Properties tab.