A printing apparatus comprising: a support member having a surface for supporting a recording medium transported in a predetermined direction (Ds); an ejection head for printing an image on the recording medium supported by the support member by ejecting liquid from a nozzle formed in a portion facing the support member; and an irradiation section that includes a housing which is open toward the support member, and a light emitting section housed in the housing for emitting light to cure the liquid, the irradiation section being configured such that light emitted from the light emitting section can be irradiated onto the recording medium supported by the support member via the opening, characterised in that the housing includes an inclined section (371a, 371b) which extends from the opening toward the ejection head such that a distance from the inclined section to the support member decreases toward the ejection head in the predetermined direction or an opposite direction, and, in a front view in a direction perpendicular to the predetermined direction, when an acute angle between a first straight line (La1, Lb1), which is a virtual line extending along the inclined section, and a normal (Lan, Lbn) to a surface of the support member at an intersection (Pax, Pbx) between the first straight line and the surface of the support member is defined as an angle θ1, and an acute angle between a second straight line (La2, Lb2), which is a virtual line extending from an end of the facing portion of the ejection head located close to the irradiation section to the intersection, and the normal is defined as an angle θ2, the inclined section is provided so that θ2 > θ1 is established. a support member having a surface for supporting a recording medium transported in a predetermined direction (Ds); an ejection head for printing an image on the recording medium supported by the support member by ejecting liquid from a nozzle formed in a portion facing the support member; and an irradiation section that includes a housing which is open toward the support member, and a light emitting section housed in the housing for emitting light to cure the liquid, the irradiation section being configured such that light emitted from the light emitting section can be irradiated onto the recording medium supported by the support member via the opening, characterised in that the housing includes an inclined section (371a, 371b) which extends from the opening toward the ejection head such that a distance from the inclined section to the support member decreases toward the ejection head in the predetermined direction or an opposite direction, and, in a front view in a direction perpendicular to the predetermined direction, when an acute angle between a first straight line (La1, Lb1), which is a virtual line extending along the inclined section, and a normal (Lan, Lbn) to a surface of the support member at an intersection (Pax, Pbx) between the first straight line and the surface of the support member is defined as an angle θ1, and an acute angle between a second straight line (La2, Lb2), which is a virtual line extending from an end of the facing portion of the ejection head located close to the irradiation section to the intersection, and the normal is defined as an angle θ2, the inclined section is provided so that θ2 > θ1 is established.