I can export my drawing pages to PDF, and on screen everything is there and looks fine.
However, when I print my drawing pages either from the page layout, OR print from the exported PDF, random lines do not print at all, and certain parts of hatching do not print either!
Has anyone had this happen? I've tried re-saving my PDF's to JPEG, or even doing a screen-shot of them... and that actually makes the problem worse and many lines disappear.
I had thought that too, but I'm on my second printer and have had the issue with both.
Also, if I save an exported PDF as a JPEG, a lot more lines disappear. So it's something digital that's happening... not to do with the printer. Very strange.
I'll attach an exported PDF (all lines show but not all print), and a JPEG (drawing is gone other than annotations)
I've printed your PDF on my HP Officejet 7000 printer and everything seems OK (see attached picture - IMG_0303.JPG). I also exported your PDF to JPG in Preview.app and again - everything looks right (attached "FRONT DOOR OPTIONS 1 07JAN2013.jpg").
The two things I've noticed in your PDF:
1. The stroke width of the lines in PDF are 0.000 mm - as Adibe Illustrator shows.
2. The color of hatch lines is light gray.
I think those factors could be the cause of your troubles.