A carrier device comprising: a medium accommodating section configured to accommodate a roll medium which extends in a primary scanning direction and which is formed by rolling a web of medium; a carrying section configured to carry the medium unrolled from the roll medium in a secondary scanning direction perpendicular to the primary scanning direction; a re-rolling section extending in the primary scanning direction, the re-rolling section configured to re-roll the medium having been carried; a dancer section configured to apply a predetermined tension on the medium being carried from the carrying section toward the re-rolling section; a first altering section disposed between the medium accommodating section and the carrying section, the first altering section configured to press the medium being carried from the medium accommodating section toward the carrying section so as to alter a carrying path of the medium; a second altering section disposed between the carrying section and the re-rolling section, the second altering section configured to press the medium being carried from the carrying section toward the re-rolling section so as to alter the carrying path of the medium, the carrier device characterized in that the first altering section includes a first bar member extending in the primary scanning direction; the first altering section is configured to press the medium being carried from the medium accommodating section toward the carrying section; the first bar member is configured so that an inclination angle thereof is adjustable with respect to a center axis of the roll medium; the second altering section includes a second bar member extending in the primary scanning direction; the second altering section is configured to press the medium being carried from the carrying section toward the re-rolling section; and the second bar member is configured so that an inclination angle thereof is adjustable with respect to a center axis of the re-rolling section. a medium accommodating section configured to accommodate a roll medium which extends in a primary scanning direction and which is formed by rolling a web of medium; a carrying section configured to carry the medium unrolled from the roll medium in a secondary scanning direction perpendicular to the primary scanning direction; a re-rolling section extending in the primary scanning direction, the re-rolling section configured to re-roll the medium having been carried; a dancer section configured to apply a predetermined tension on the medium being carried from the carrying section toward the re-rolling section; a first altering section disposed between the medium accommodating section and the carrying section, the first altering section configured to press the medium being carried from the medium accommodating section toward the carrying section so as to alter a carrying path of the medium; a second altering section disposed between the carrying section and the re-rolling section, the second altering section configured to press the medium being carried from the carrying section toward the re-rolling section so as to alter the carrying path of the medium, the carrier device characterized in that the first altering section includes a first bar member extending in the primary scanning direction; the first altering section is configured to press the medium being carried from the medium accommodating section toward the carrying section; the first bar member is configured so that an inclination angle thereof is adjustable with respect to a center axis of the roll medium; the second altering section includes a second bar member extending in the primary scanning direction; the second altering section is configured to press the medium being carried from the carrying section toward the re-rolling section; and the second bar member is configured so that an inclination angle thereof is adjustable with respect to a center axis of the re-rolling section.