| 摘要 |
A fixing unit as an embodiment of the present invention has a main body frame to contain a photoconductive drum and a fixing unit, a protection cover which is placed in a space to a toner drum and has a three-dimensional structure to form an air layer in a clearance to the main body frame, a first cover and second cover rotated on the same rotating axis, and a knob and knob which are formed on the first cover and second cover, respectively, and placed on different surfaces.
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