Plotting out drawings

[Joseph Bishop]

I have a drawing that I have been given by a client. When I plot it out in
color, everything is fine. Yet when I plot it out in black, everything is
extremely faint and some of the letters are missing some of their lines.
For example on a letter "R", the slant might not be there. Any help would
be appreciated. My email is jlbsurvey@ameritech.net

Thanks.