I believe that not having a PostScript option would result in fault code 016-749. If the PS option being missing was the cause of the error we also wouldn't be able to print from any application, but the post says that a Word doc prints fine. The question then becomes is this all .PDF files or just a particular .PDF file? This sounds like a syntax error generated by something in a particular .PDF file.
Try the following.
If you don't have Adobe Acrobat (Reader or Paid) download Adobe Reader.
Open the file in Adobe Reader and select File->Print
Click on Advanced in the print window
Check the box labeled Print As Image
Print your job
Let us know if the error still occurs or if the error code changes.