Are they custom media types you have added?  If so, the Z3200 driver has always had a long list of bugs, one of which is related to the driver having issues once you add more than a few custom media types.  Holding Shift while you click "Properties" to open the driver in Qimage does reset the driver (to Windows defaults) so if you don't see the media types in the driver at that point, the driver may need to be reinstalled or you may need to clear the custom media types and re-add them.

If Windows printing preferences shows the media types but Shift-Properties in Qimage doesn't, then the 64 bit version of the driver has the custom media types but the 32 bit version of the driver (which Qimage uses) does not.  Once the 64 and 32 bit versions of the driver diverge/disagree, driver bugs likely came into play and it might be time to uninstall the driver and reinstall it, starting from scratch.

None of that will affect your Qimage saved settings as long as you reinstall the driver under the same name.  So note/copy the name of the printer and when you reinstall it, make sure it has the same name.  The only thing that could cause a problem with loading saved info is if the old printer was named "HP Z3200 Series" and the new one is named "HP Z3200 Series on USB001".  The names have to be the same when you reinstall.

Regards,
Mike

You already have the 32 bit driver: all drivers install both a 32 bit and 64 bit version when you install the driver.  The drivers are identical except for one being 32 bit code and the other being 64 bit code.

Mike

I don't know how the Z3200 handles custom paper types.  You might need to google how to reinstall them.  Enough people have had problems with custom media types disappearing that there are probably posts that address the issue.

Regards,
Mike