Patent ID: 7706721

Claim:
An electrophotographic image forming device having an image forming unit to apply a developer to a paper to form an image thereon, comprising: a fusing unit having a fusing roller to receive the paper from the image forming unit, to fix the developer on the paper, and to move the paper in a paper transfer direction; a housing containing the image forming unit, and having a fusing unit accommodating part to detachably receive the fusing unit along a direction that is different than the paper transfer direction to be accommodated therein and along a rotational axis of the fusing roller; a movable fusing unit supporting part movably installed or fastened in the fusing unit accommodating part to detachably support the fusing unit disposed thereon; a mounting position regulator interposed between the fusing unit accommodating part and the fusing unit to regulate a position in which the fusing unit is accommodated therein; and a rail part interposed between the movable fusing unit supporting part and the fusing unit accommodating part to allow the movable fusing unit supporting part to move smoothly between the mounting position and the detaching position, wherein the movable fusing unit supporting part is installed to move between a mounting position in which the fusing unit is accommodated in the fusing unit accommodating part and a detaching position in which the fusing unit is exposed out of the housing and is detachable therefrom by being moved through the fusing unit gateway.