The RTP-1 thermal printer is an attachable printer option for the FS-44P 4 row digital coin sorter. The RTP-1 is a must have added feature that will provide a convenient printed receipt of the coin count amount of each denomination, the dollar value amount if each denomination, and sum total dollar value of your entire coin count. Indicator Light When power switch is on, the Red Power Indicator will be lit. When printer is ready to print, the green Status Indicator will be lit. Easy to use paper feeding technology, unit includes a roll of receipt paper. Printing Modes, the printer will automatically set to online mode when switch is turned on. Connection to Coin Sorter use included printer cable to connect the Serial Connector on the back of the printer to the Printer Port on the back of the FS-44P Coin Sorter.