Trying to print an ER diagram to .PDF generates Exception, "The operation completed successfully (4269449)

When trying to print an ER diagram to .PDF generates Exception, The operation completed successfully Stack Trace .

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Exception Information
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Exception: System.ComponentModel.Win32Exception
Message  : The operation completed successfully Stack Trace:
   at
System.Drawing.Printing.StandardPrintController.OnStartPrint(PrintDocument
document, PrintEventArgs e)
   at
System.Windows.Forms.PrintControllerWithStatusDialog.OnStartPrint(PrintDocum
ent document, PrintEventArgs e)
   at System.Drawing.Printing.PrintController.Print(PrintDocument document)
   at System.Drawing.Printing.PrintDocument.Print()
   at Quest.Toad.Gui.MainForm.printButton_ItemClick(Object sender,
ItemClickEventArgs e)
   at DevExpress.XtraBars.BarItem.OnClick(BarItemLink link)
   at DevExpress.XtraBars.BarBaseButtonItem.OnClick(BarItemLink link)
   at DevExpress.XtraBars.BarItemLink.OnLinkClick()
   at DevExpress.XtraBars.BarItemLink.OnLinkAction(BarLinkAction action,
Object actionArgs)
   at DevExpress.XtraBars.BarButtonItemLink.OnLinkAction(BarLinkAction
action, Object actionArgs)
   at DevExpress.XtraBars.BarItemLink.OnLinkActionCore(BarLinkAction action,
Object actionArgs)
   at DevExpress.XtraBars.ViewInfo.BarSelectionInfo.ClickLink(BarItemLink
link)
   at DevExpress.XtraBars.ViewInfo.BarSelectionInfo.UnPressLink(BarItemLink
link)
   at
DevExpress.XtraBars.Controls.CustomLinksControl.OnMouseUp(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons
button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage