The disclosure relates to a gripper finger including a surface area for clamping. A path of weakness extends around a periphery of the carton through at least a portion of the side wall. Further it is provided for the base to have a specifiable edge. A jaw assembly slides along the rail over more than one card positioned in the row of slots. The decoder may be configured to receive the intensity of infrared light and to generate an intensity of decoded infrared light. Quality of communication is maintained without reducing a transmission rate by using a usable carrier only.