An image forming apparatus is provided having a developing unit including a handle. The developing unit of the image forming apparatus includes at least one of a photosensitive body and a developing roller developing a developer on the photosensitive body. A case protects the image forming unit and a handle is installed on the case to handle the developing unit. The handle pivots to a first position attached to the case and a second position opposite to the first position.

 
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> Method and apparatus for adaptively performing defect scan according to channel characteristics

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