The present invention relates to a recording apparatus in which electronic substrates are vertically disposed along an inner side surface of a housing, and which can improve the radiation performance of the electronic substrates. The recording apparatus includes: a housing which constitutes an appearance of a recording apparatus body; and an electronic substrate which is vertically disposed alongan inner side surface of the housing. Here, an air supply hole and an air exhaust hole are formed on a side surface portion of the housing corresponding to a lower portion and an upper portion of theelectronic substrate so that an air-flow path for external air is formed in an installation region in which the electronic substrate is provided.