I have 2 cross sections from the same assembly on the same sheet of a drawing.  When I print this sheet, one cross section prints normally and the other has a much heavier line weight.

Also on some sheets with only a single cross section the line weight is much heavier and then others it is 'normal'.  I can open and print other drawings and all the line weights are normal.

I tried saving as a pdf and printing that, and get the same result. 

All sheets and views appear normal on the screen both in solidworks and on the pdf.

Any ideas as to what might cause this?

Thanks,

Colleen