L-4733A/L-4733AW/L-4533A/L-4533AW/L-4033A/L-4033AW Printer Driver Guide About the Software Spot Color Support Tool This software supports spot color printing settings. This can only be used with Windows. U “Setting Spot Colors” on page 22 Summary of the Spot Color Support Tool Detect Unused RGB Value Detects the RGB values not used in the print data. 9