BMP files in Bitmap Color Model coming out grainy - Windows OS?

[Grisaun]

Hello,

I need to export an EPS file into a Bitmap Color Modeled BMP file, but when I do so, the resulting image comes out grainy. It does not do this in RBG or Greyscale.  See Below:

How can I make this a solid black? Why is it doing this? I need to export at Bitmap Color Model, 600ppi, and Artwork Optimized Antialias. 

[Monika Gause · Accepted solution]

Is that an RGB file? With RGB black?

[Grisaun · Accepted solution]

Hi Monika!

Following this comment, I changed it from RBG to CMYK/GPU in document color mode and it exported properly. Thanks!