A printer for a repositionable note, comprising: a housing including an accommodation unit configured to accommodate a repositionable note wound in the form of a roll with at least one adhesive portion exposed and an ejection outlet through which the note withdrawn from the accommodation unit is ejected, and forming a movement path for the note from the accommodation unit to the ejection outlet; and a print unit including a thermal head provided on the movement path and configured to print on the note ejected through the ejection outlet and a feed roller configured to rotate in a direction opposite to a rotation direction of the note when the note accommodated in the housing is withdrawn and provided to face the thermal head and thus to enable printing on the note while transferring the note, the print unit including a fixed part with a step on an upper end of the feed roller; the printer further comprising a decurling unit provided on the movement path between the accomodation unit and the print unit and including a step at a position corresponding to a movement path of the adhesive portion of the note, the decurling unit being configured to guide the note to be curved in a direction opposite to a winding direction of the note, wherein the note is in sliding contact with the decurling unit and wherein the decurling unit includes multiple unit sliding bars combined with a sliding bar axis at a distance from each other, each unit sliding bar having a cylindrical shape, and one of the multiple unit sliding bars positioned corresponding to the movement path for the adhesive portion of the note serves as a step sliding bar having a smaller diameter than the other unit sliding bars, the multiple unit sliding bars being configured as rotatable rollers. a housing including an accommodation unit configured to accommodate a repositionable note wound in the form of a roll with at least one adhesive portion exposed and an ejection outlet through which the note withdrawn from the accommodation unit is ejected, and forming a movement path for the note from the accommodation unit to the ejection outlet; and a print unit including a thermal head provided on the movement path and configured to print on the note ejected through the ejection outlet and a feed roller configured to rotate in a direction opposite to a rotation direction of the note when the note accommodated in the housing is withdrawn and provided to face the thermal head and thus to enable printing on the note while transferring the note, the print unit including a fixed part with a step on an upper end of the feed roller; the printer further comprising a decurling unit provided on the movement path between the accomodation unit and the print unit and including a step at a position corresponding to a movement path of the adhesive portion of the note, the decurling unit being configured to guide the note to be curved in a direction opposite to a winding direction of the note, wherein the note is in sliding contact with the decurling unit and wherein the decurling unit includes multiple unit sliding bars combined with a sliding bar axis at a distance from each other, each unit sliding bar having a cylindrical shape, and one of the multiple unit sliding bars positioned corresponding to the movement path for the adhesive portion of the note serves as a step sliding bar having a smaller diameter than the other unit sliding bars, the multiple unit sliding bars being configured as rotatable rollers.