A liquid ejecting apparatus includes a print head that serves as a liquid ejecting unit configured to eject a liquid curable by light irradiation onto a medium and an irradiation unit configured to emit light onto the medium M on which the liquid is ejected. The liquid ejecting apparatus also includes a depressurizing mechanism that serves as an oxygen concentration reduction mechanism configured to lower an oxygen concentration to a level below an oxygen concentration of the atmosphere in an ejection region formed between the print head and the medium when the print head ejects the liquid and also in an irradiation region formed between the irradiation unit and the medium when the irradiation unit emits light.
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