To improve the reliability of an apparatus by preventing a recording head from breaking through collision against an edge of a floating prevention member for a recording medium even when the recording medium having an unexpected thickness is transferred or when many sheets of recording media are transferred overlapping.

Projecting parts 113a and 113b are set to a face at the side of the recording head 101 of the paper floating prevention member 113 which restricts floating of side end parts of a recording paper 401. When the recording paper having a predetermined or larger thickness or a paper bundle of a plurality of sheets is transferred between a platen 111 and a move region of the recording head 101, even if the recording head 101 moves over the paper floating prevention member 113, the projecting parts 113a and 113b slide with a guide part 101a except a nozzle part 101b of the recording head 101 while elastically deforming the paper floating prevention member 113 to prevent hitting between the nozzle part 101b of the recording head 101 and an end part (edge) 113c at the free end side of the paper floating prevention member 113.