A recording medium detection unit is provided on the upper stream side of a carrier mechanism in a carrier route and detects at least the front and back ends in a carrier direction of a recording medium. A nozzle array control unit controls the drive of a plurality of nozzles on the basis of job information reported by a higher-order device and the detection information of the front and back ends by the recording medium detection unit and enables the plurality of nozzles to perform a recording process for inject ink only an area in the range between the front and back ends of the recording medium. A control unit receives image data and also notifies the higher-order device of the stoppage of image data transfer according to the detection of the back end of the recording medium by the recording medium detection unit.