To effectively correct a curl of recording paper by bringing a correcting assistant member in contact with recording paper wrapped around a curl correcting member in the direction of enlarging the wrapping quantity.

While adding tension due to friction force between a recording paper roll R and the bottom part of a holder part and the dead weight of the recording paper roll R to recording paper P, the outer circumferential face of a decurl roller 33 is slidably contacted with the outer face, and it is reversely rotated and the paper is transported. At this time, because the outer circumferential face of an assistant roller 41 is slidably contacted with the inner face of the recording paper P, the conveying route is approached to a pickup roller 23, the recording paper P is largely reversely rotated more than the case of no assistant roller 41, the wrapping quantity to the decurl roller 33 is enlarged, and the wrapping angle θ is minified. Consequently, a curl of the recording paper P is more effectively corrected compared with the case only by the decurl roller 33, and the paper can be conveyed to an image recording part without generating paper passing jam due to curl.