In order to simplify a constitution of a locking member capable of locking engageably and detachably an ink head with a stationary region, an ink-jet printer comprises a first carriage supported relatively transferable in a predetermined direction with respect to the medium; a second carriage supported relatively transferable in the predetermined direction with respect to the medium and juxtaposed so as to position on a side in the predetermined direction of the first carriage; a slide means disposed on the first carriage to be transferable in a direction intersecting with the predetermined direction; an ink head disposed fixedly on the slide means and capable of discharging an ink on the medium; a cutting head disposed fixedly on the second carriage and capable of cutting out the medium; a locking member transferred with transfer of the first carriage towards the predetermined direction and transfer of the slide means towards direction intersecting with the predetermined direction to lock engageably and detachably with a stationary region; and a coupling means for coupling separably the first carriage to the second carriage.
