I have Acrobat 9 on two different machines. One has version 9.5.1, the other version 9.4.5. Both print to the same networked Brother MFC-9840CDW printer. PDFs printed from version 9.5.1 have a faint ghost. There is no ghosting at the left side, about 1mm up on the right side, slanted from left to right. The same PDF printed from the PC using version 9.4.5 is crystal clear; no ghost.
Summary:
Version OS Problem?
9.5.1 WIN7-64 Yes
9.4.5 Vista-32 No
North America
Europe, Middle East and Africa
Asia Pacific