A method determines wearing of a printing apparatus. The method includes: controlling a motor of a label paper driving mechanism of the printing apparatus using motor control data; determining a label start indicator; determining a label end indicator; determining a label length indicator corresponding to a length covered by a rotation of the label paper driving mechanism of an unweared printing apparatus between the label start indicator and the label end indicator based on the motor control data; storing the label length indicator; and determining a wearing indicator of the printing apparatus based on stored label length indicators, including the label length indicator.