Patent ID: 7529505

Claim:
An image forming apparatus comprising: a housing; a supporter located in the housing, the supporter being movable relative to the housing; a plurality of developing apparatuses attachable to and detachable from the supporter; and a restricting unit that restricts movement of the supporter in a first direction while at least one developing apparatus supported by the supporter is inside the housing, wherein the supporter is movable in the first direction from a first position where the supporter is inside the housing to a second position where a portion of the supporter is inside the housing, a portion of the supporter is outside the housing and the restricting unit restricts the movement of the supporter in the first direction; wherein the plurality of developing apparatuses are arranged along the first direction, the at least one developing apparatus is positioned at an upstream part in the supporter in the first direction when the supporter is in the first position, and when the supporter is in the second position, the at least one developing apparatus is positioned where one of the plurality of developing apparatuses at a downstream part in the supporter is positioned when the supporter is in the first position.