Smudged Drawings When Previewed or Exported

[theblackhawx]

My drawings when exported are smudged. A brief description would be that there should be a drawing but when previewed, what comes out is that a certain portion of the drawing is smudged as if the it is painted. 

[fateyo]

Do you mind send the drawing to here?

If not smudged, what is it look like?

Is it welding? hatching by some objects?

if you change a new ctb with all pen width 0 what will happen (not use object width)?

[theblackhawx]

Here is the drawing. I am sorry but i am still exploring Autocad as i am
still a student, do you mind kindly explain what you have just instructed
me?

[fateyo]

I seems didn't see your dwg attachment

try attached test_monochrome_penwidth=0.ctb to print it again.

put your the ctb file here than choose it to print:

[theblackhawx]

Thanks for the help so far. However i still receive the problem when i use 0.005 and 0 pen width. This are the results.