An image recording apparatus including: a reciprocable carriage on which a recording head is mounted; driven portions; a first and a second drive source which generate drive power; and a drive-power transmitting system which transmits the drive power to the driven portions, wherein the system includes: a shaft; a first and a second switching gear supported by the shaft so as to be slidable in the axial direction, and respectively driven to be rotated by the drive power of the first and the second drive source; transmission gears each of which is meshable with at least one of the first and the second switching gear, and transmits the drive power of one of the first and the second power source to a corresponding one or ones of the driven portions; and a switching-gear positioning mechanism which positions a set of the first and the second switching gear, depending upon a position of the carriage, at a selected one of specific positions.