The image formation apparatus includes a transport frame including a maximum front-to-back medium width passage area defined in an area between a first back side passage line and a first front side passage line, and allowing a continuous medium of a maximum front-to-back width to pass therethrough, and a minimum front-to-back medium width passage area defined in an area located inside the maximum front-to-back medium width passage area between a second back side passage line and a second front side passage line, and allowing a continuous medium of a minimum front-to-back width to pass therethrough, in a state where the transport frame is drawn out most frontward and a toner replenishment door is opened most wide downward, when the toner replenishment door is seen downward projectively, at least a portion of the first back side passage line being covered with the toner replenishment door.