My Illustrator file is printing in black and white or pink

Select the Correct Color Profile before you plot:

a. Choose File, Print.

b. Select a plotter.

c. Choose Color Management on the left.
d. Make sure Color Handling is: "Let Postscript® printer determine colors"

If issues persist, check your working colorspace:

a. Under Edit, Choose Color Settings, Working Spaces: RGB: sRGB IEC6 1966-2.1

 

and

b. Under Edit, Assign Profile, Choose Working RGB or Profile as: Working RGB: sRGB IEC6 1966-2.1 IF IT DOES NOT LIST THAT OPTION ALREADY.