When you use an application to print a graphics document on a computer that is running Windows Vista or Windows Server 2008, horizontal white bars or black boxes may unexpectedly appear in the output. This problem may occur when the DrvPlgBlt function is called to downscale an image.
This problem occurs only with certain combinations of applications and printer drivers. For example, this problem may occur when you print a graphics document in Adobe Photoshop in booklet mode by using a monochrome printer driver that supports Hewlett-Packard Graphics Language 2 (HPGL2).
Note: This issue is not caused by the applications or printer drivers.