The print output shows black rectangles if you print a document that contains some images on a computer that is running Windows Vista or Windows Server 2008
You print a document that contains some images on a computer that is running Windows Vista or Windows Server 2008. However, in the print output, black rectangles are shown in the place of the images.
This problem occurs when you print documents by using certain applications. For example, assume that you print a PDF document in Adobe Acrobat Reader and the PDF document contains a full-page bitmap. Then, you print the document by using the “2 pages per sheet” setting. In this scenario, you notice black rectangles in the print output.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB971248.