To smoothly carry out an operation of fetching ejected recording paper by economically illuminating inside of a paper ejecting space that is positioned below an image reading part in a device main body in the image forming device.

This device is provided with an image reading part 1 with the original platen 12 where an original is placed, an image reading means 14 reading an image of the original by radiating light on the original placed on an original platen with and a light source lamp 15 and a light transmitting window 42 is provided in bottom surface part, an image recording part 3 provided with an image recording means 33 recording the image on recording paper, a paper ejecting space 2 that is provided stacked below the image reading part and where recording paper ejected from the image recording part is received and retained and a reflecting mirror 41 (optical means) by which light emitted by the light source lamp 15 of the image reading means is received and conducted inside a paper ejecting space 21 through the light transmitting window 42 provided on the bottom surface of the image reading part.