Printer and paper feeding method for printer device

A paper-feeding method of a printer which comprises a printing unit having a platen roller rotatably supported around a shaft, a power unit including a stepping motor and a gear train to drive the stepping motor to transfer a force generated thereby to the platen roller and rotate the platen roller around the shaft, a cutting unit provided at a further downstream of a forward direction than the platen roller to cut a paper at a certain position, the forward direction in which the paper printed by the printing unit is fed by a forward rotation of the platen roller, and a control unit to control a driving of the stepping motor and an operation of the cutting unit, the method comprising the steps of:

• by the control unit, driving the stepping motor by a first number of steps to rotate the platen roller forward and placing a certain portion of the paper at a predetermined position of the cutting unit on standby for a predetermined time before the paper cutting by the cutting unit;
• and
• after the paper cutting by the cutting unit, driving the stepping motor by a second number of steps to rotate the platen roller forward, the second number of steps being a minimal number of steps necessary to remove backlash of the gear train.