When a guide lever is in a toner open position, a space is formed between an upper surface of the guide lever and a lower surface of a flat bed unit as a part of a transport path of a paper. Therefore, the paper is turned forward around in a generally U-shape in the transport path, and passes over a toner cartridge, then is ejected to an ejection tray. So the transport path can be increased in radius of curvature at the U-turn point thereof, and whereby a reliable feed of the paper with a reduced risk of paper jam can be achieved. Further, since a scanning unit is disposed below and adjacent to a process cartridge and the ejection tray so that it can overlap with the process cartridge and the ejection tray, and is disposed adjacent to a feed tray so that it can overlap upwardly with the feed tray, reduction in size of a laser printer can be achieved.