a transport unit that transports a recording material along a transport path;

at least one image reader that reads an image formed on the recording material transported by the transport unit; and

a common housing that supports the transport unit and the at least one image reader,

wherein the transport path is accessible by a user through at least one gap existing between the transport path and the at least one image reader,

wherein the at least one image reader comprises two image readers disposed in respective ones of two regions that face each other with the transport path provided therebetween, and the at least one gap comprises two gaps provided in respective ones of the two regions,

wherein the transport path is accessible through each of the two gaps, and is accessible from each of the two regions,

wherein a rotating member retractable from the transport path is provided in each of the two gaps, the rotating member being disposed on a side of the transport path, wherein in each of the two gaps, the transport path is accessible through a gap between the rotating member and the transport path, and

wherein in one of the two gaps, the transport path is not accessible at a location other than a location at which the rotating member is installed.