Back of the Unit

A Carbon Filter/Bracket - Filters fumes coming from the UV-curing chamber to outside the machine

Cooling Fan - Allows outside air inside the machine to cool its components

C Power Inlet - Plug the female end of the power cord into this inlet.
D I/O Power Button - Has identical function to the Power Button on the front of the machine's lid in terms of cutting power. However, this button must be in the I position for the front power button to work.