A printer includes a drive motor, a conveyance roller driven by the drive motor to convey a recording medium, a recording head configured to perform printing on the recording medium, and a drive control unit configured to control the drive motor with PWM control. The drive control unit controls a duty ratio of the PWM control based on first conveyance speed, which is conveyance speed of the recording medium set in advance.

The specification relates to a method in a label printer (100), the label printer at least comprising: a label supply spool (120) configured to supply a label web comprising a label (191) and a carrier (191); a label rewinder (130) configured to rewind at least the carrier; a drive roller (172). The method comprises: operating the label rewinder in an opposite direction to a rewind direction and building or continue to build an extension (195) on the carrier between the drive roller (172) and the carrier rewinder (130) during a backfeed operation of the label web; performing a backfeed operation by rotating the drive roller (172) in a direction opposite to the print operation direction until a next label is displaced back to a start print position; stopping the drive roller after backfeed when a length of the extension (195) is reduced; and rewind with the rewinder (130) in rewinder operation direction causing the carrier to tense.