How to remove the grey line under detail line when printing( "Show Hidden lines" aption have to set "ALL")

[mai.thetri.au]

Deal all
Cause of some reasons, i have to set "Show Hidden lines" to  "ALL".
thats why the grey line show up under detail line after printing(refer to attached file).
is there any way to remove the grey line? thank you!

[mai.thetri.au]

Dear azad.Nanva
I tried and the grey line disappeared when i checked Raster Processing in Hidden line views option.
Thank you so much!