An image recording apparatus including: a first convey path; a support member which supports a first recording medium, a second recording medium, and a tray; a second convey path connected to the first convey path; a first guide member partly defining the second convey path; and a posture change mechanism which changes the support member and the first guide member between (a) a first posture in which the first convey path has a height allowing the first recording medium to pass therethrough, and the second convey path has a height allowing the first recording medium to pass therethrough and (b) a second posture in which the first convey path has a height larger than the first height and allowing the second recording medium or the tray to pass therethrough, and the second convey path has a height smaller than the second height.