Printstyle in Dratfsight

Hi all,

i'm a new here at this community and i have my first question:

I created several layers with different colors but i want to print them black and white. How do i create a printstyle to print black & white? Everytime i'm trying to print, the paper sheet is not usable because of the greyscales...

This problem drives me crazy, anybody out there with a solution?

Thanks, JG