First, probably good to patch to 7.5. That is the latest version in the 7 series, and fixes a lot of issues with q.
Regarding the printing issue, are you using a postscript compatible printer?
Regarding the ruled image box, are you importing an image into a picture box, and putting a frame around "that" box? Or are you making a 2nd box for the ruled box? If using a 2nd box, perhaps it is a line-up issue?
If all in one box, create a X1a compatible PDF file from quark (again, works good in 7.5). Look at that on screen, and/or print. If you are not using a postscript printer, the PDF file will print fine.