Mystery lines show up in print preview and prints but not on screen/viewport

[Anonymous]

I'm trying to print a new copy of this sheet because I made a minor revision to it and need to re-submit it but every time I try to print, these strange lines show up in the print preview and the actual print.  It's hard to erase or turn off something that you don't know what/where it is.  I have gone into model space in the viewport to try and window/select these mystery lines but nothing is there, yet when I print, something is there.  This is what the sheet looks like on my screen and what the print should look like (other than print will be black and white):

This is how it should look, no mystery lines

This is the print preview:

I have audited, recovered, re-started my computer, never seen these lines before in my life and cannot figure out how to make them go away 😞  I found a sort of similar problem in a forum post earlier and that person copied their drawing into a new drawing and resolved that way, unless that means doing a "save as" then this drawing has close to 20 paperspace sheets and all kinds of stuff like that which would make copying to a new drawing very obnoxious.  This project is already under construction and I have printed this sheet numerous times before with no issues but need to print it now to submit for a revision to my construction limits.  Please help!!!!!!!!!!!!!

[pendean]

Do you mean the site contour lines I can see in the posted image of the PDF?

[Anonymous · Accepted solution]

No, I was talking about some solid lines that appear in an area that is outside the site topography that is in the drawing. 

I actually just finally figured out what/where the lines were and deleted them!!!  Had not gotten a chance to come back here to update.  They were lines on a layer that was turned off (light bulb turned off, not frozen) in one of the x reference drawings.  Anything that was frozen was fine but everything on those 2 layers that were turned off was printing for some reason, who knows??  This took me over 4 hours today to find the source of the lines 😞  I went into every single x reference and turned on all frozen/off layers and deleted a whole bunch of stuff, purged and ultimately it was items on layers turned off that was printing for some reason.  The almost stranger thing is that I sent 2 sheets from the same drawing (just different paperspace layout tabs) to print and one printed fine and this one was doing this.  Same drawing, same x references, weird.  I have stopped trying to figure out the reason why autocad does strange things at this point in life and just go with it when I get it to a point that it does what I want for the moment.

Thank you for trying to help!!!

[ZXuNQAKK]

This is correct. Printed but not shown- light bulb off. (Solve my CAD issue)