Patent ID: 8200115

Claim:
An image forming apparatus, comprising: a main body having a paper discharge part to discharge paper; a fusing unit mounted in the main body to fuse an image to the paper; a cover mounted to the main body to expose the fusing unit; a heat shielding member mounted proximate to an inner side of the cover to block heat transferred from the fusing unit; an external air circulation chamber formed between the heat shielding member and the cover as an empty space, in which external air circulates by convection; and at least one external air flow hole through which the air flows into/out of the external air circulation chamber and provided at a position proximate to a higher end of the cover, wherein the external air flow hole comprises, an upper external air flow hole through which the air flows out of the external air circulation chamber; a lower external air flow hole through which the air flows into the external air circulation chamber and positioned below the upper external air flow hole; and the heat shielding member is disposed to be inclined upwardly toward an end of the cover opposite of the higher end, and at least one internal air exhaust hole is provided at the end of the cover opposite of the higher end so that air in the main body rises along the inclination of the heat shielding member and is exhausted outside through the at least one internal air exhaust hole.