An image forming apparatus 1 is provided with an apparatus main body 2 for performing a predetermined process on a sheet, a cover 34 openable and closable relative to the apparatus main body 2, a light emitting unit 51 provided in the apparatus main body 2 and including an emission source 511 for generating light, a control board 512 for controlling the emission source 511 and causing it to generate the light and wiring 513 electrically connected to the control board 512, and a display member 52 provided in the cover 34, arranged to face the emission source 511 and including an incident portion 521 on which the light is incident, an output portion 522 for outputting the light to the outside and a light guide portion 523 for guiding the light from the incident portion 521 to the output portion 522.