An image forming apparatus, having a housing, a flapper swingable relatively to the housing between a first position and a second position; a pressure link swingable relatively to the housing and the flapper, a first contact surface arranged on the housing, a first urging member to urge the flapper to swing relatively to the pressure link toward the first contact surface, a second urging member to urge the pressure link to act on the flapper to tend toward staying in the first position, and a flapper switcher having a pressure applier movable between a pressing position and a separated position, is provided. The flapper is swingable relatively to the pressure link against an urging force from the first urging member, after the pressure applier presses the pressure link to move the flapper from the first position to the second position and when the flapper contacts the first contact surface.