line thicknesses in print phase

[ANTOR61]

hello to all;
use architecture 2014; I just changed the operating system (xp with 7); then reinstallation of archtectures; in the printing phase of some drawings, the line thicknesses are greatly altered (especially those with large thicknesses 0.40, 0.6 mm)
I can't find the solution.
Can anyone give me the tip?
Thank you.

 

[AndreaMion]

Bye. how do you impose the thicknesses? from ctb or directly from the model?