Indicator light will turn green when the printer is ready to print. Easy-to-use paper feeding technology. Automatically sets to online mode when switch is turned on. Use printer cable to connect the serial connector on back of the printer to the printer port on the back of the FS-4000 Coin Sorter. Provides a printed receipt of the coin count and dollar value of each denomination along with the sum total of your entire coin count. Lightweight design makes it easy to move to different machines.