A liquid ejection apparatus comprising: a first housing; a second housing, wherein the first housing is rotatable relative to the second housing about a rotational shaft to be moved between a close position where the first housing comes close to the second housing and a separate position where the first housing is separated from the second housing than the close position, the first housing accommodates a plurality of heads (10a, 10b) arranged in a direction orthogonal to the rotational shaft, and each of the heads (10a, 10b) includes an ejection surface having a plurality of ejection ports for ejecting liquid to a recording medium; a plurality of covers (11a, 11b) provided for the plurality of heads (10a, 10b), respectively, and including a far-side cover corresponding to one of the heads away from the rotational shaft and a near-side cover corresponding to one of the heads close to the rotational shaft, wherein each of the covers are movable relative to the corresponding head between a protection position where the cover covers the ejection surface of the corresponding head and a retraction position where the cover does not cover the ejection surface of the corresponding head; and a moving mechanism configured to move each of the covers (11a, 11b) according to the rotation of the first housing so as to take the retraction position when the first housing is located at the close position and take the protection position when the first housing is located at the separate position, characterized in that when the first housing is moved from the close position toward the separate position, the moving mechanism is configured to move the covers (11a, 11b) such that an angle formed between the first housing and the second housing when the far-side cover reaches the protection position is smaller than an angle formed between the first housing and the second housing when the near-side cover reaches the protection position. a first housing; a second housing, wherein the first housing is rotatable relative to the second housing about a rotational shaft to be moved between a close position where the first housing comes close to the second housing and a separate position where the first housing is separated from the second housing than the close position, the first housing accommodates a plurality of heads (10a, 10b) arranged in a direction orthogonal to the rotational shaft, and each of the heads (10a, 10b) includes an ejection surface having a plurality of ejection ports for ejecting liquid to a recording medium; a plurality of covers (11a, 11b) provided for the plurality of heads (10a, 10b), respectively, and including a far-side cover corresponding to one of the heads away from the rotational shaft and a near-side cover corresponding to one of the heads close to the rotational shaft, wherein each of the covers are movable relative to the corresponding head between a protection position where the cover covers the ejection surface of the corresponding head and a retraction position where the cover does not cover the ejection surface of the corresponding head; and a moving mechanism configured to move each of the covers (11a, 11b) according to the rotation of the first housing so as to take the retraction position when the first housing is located at the close position and take the protection position when the first housing is located at the separate position, characterized in that when the first housing is moved from the close position toward the separate position, the moving mechanism is configured to move the covers (11a, 11b) such that an angle formed between the first housing and the second housing when the far-side cover reaches the protection position is smaller than an angle formed between the first housing and the second housing when the near-side cover reaches the protection position.