Drying device

A drying device comprising:

• a plurality of light emitting units that are disposed with intervals along a transport direction in which a transported body containing liquid is transported and that cause the liquid to be evaporated by irradiating the transported body with light in an irradiating direction;
• and
• a vent mechanism including a supply unit and a discharge unit, the supply unit including a plurality of supply ducts for supplying air toward the transported body along the irradiating direction, the discharge unit including a plurality of discharge ducts for discharging air in an opposite direction to the irradiating direction from a side of the transported body, the supply ducts and the discharge ducts being alternately disposed in spaces in the vent mechanism, the spaces including (i) a space formed upstream relative to a light emitting unit disposed on most upstream side of the plurality of light emitting units in the transport direction, (ii) spaces formed between the light emitting units, and (iii) a space formed downstream relative to a light emitting unit disposed on a most downstream side of the plurality of light emitting units in the transport direction.