I have been setting my background drawing with a transparency of 50 but when I print it still prints the same. Is there an additional setting I need to adjust to get it to print right? Background info: I am drawing mechanical systems on top of original architecturals and I want the mechanical systems to be more visible than the background.

I use the screening feature in the .ctb and/or .stb plot style.

in the plot box, do you have Plot Transparency checked?