SP1500 SCALE PRINTER SYSTEM RS232 Communications Port — Used for loading or storing files from Disk or Cassette Recorder. Reset/Operate Switch — Switches SP from Reset to Operate condition. View Angle Knob — Adjust for ease of viewing operator display. Elevated Display — Shows Weight, Price/lb., and Total Price. Operator Display — Prompts the operator or displays entered data. Label Taken Sensor — Senses presence of printed labels. LabeI Eject Slot — Labels emerge here.