The present invention generally relates to a shoe having an incorporated light source. The action is mapped to an impression, which is mapped to a response. Thereby, it is possible to store the paper feed tray and the whole of the width guide rack mechanism within the apparatus. The system may further comprise an actuator arranged to move the beam between the first and second stable states and a movable element that is moved between a first position and a second position in accordance with the movement of the beam between the first and second stable states.