When we print a form the checkboxes print out on our LaserJet Pro 400 M401n "HP Universal PS Print driver" printer solid black. But when we print the same form to our HP LaserJet 5200 "HP LaserJet 5200 PS driver" shared on another computer the check boxes print out normal. I have verified the printer settings are similar but not exact "which is to be expected since different printers" in the program and with the drivers.
I can export the file to pdf and it will print fine also on the M401n.
The system is Windows 7 Pro, QuarkXPress 126.96.36.199
Here is a scanned in example of the issue with the M401n & LJ 5200 also what it looks like in Quark.