Patent ID: 8811851

Claim:
An image forming apparatus comprising: a housing; an image forming section that is disposed in the housing and forms an image on a sheet; an air passage that is disposed so as to be movable between a first position at which the air passage is mounted in the housing and a second position at which the air passage is not completely mounted in the housing, the air passage having an interior through which air is allowed to flow while the air passage is in the first position; a trapping member that is mountably and dismountably disposed in the interior of the air passage, the trapping member is movable in the air passage between a mounted position and an incomplete mounted position, the trapping member trapping an object contained in the air flowing through the interior of the air passage at the mounted position; and a mounting system that moves the trapping member in the air passage from the incomplete mounted position to the mounted position by an operation of moving the air passage from the second position to the first position.