Batch printing of Visuals to Xps leads to OutOfMemoryException

Hi,

I am printing to xps in this way:

PrintQueue queue = printQueueObject as PrintQueue;

if (queue != null)
{
    queue.Refresh();
    collator = PrintQueue.CreateXpsDocumentWriter(queue).CreateVisualsCollator();
    collator.BeginBatchWrite();

    ...
    collator.Write(visual);
    collator.EndBatchWrite();
}

After 1000 pages or so are printed, I get an OutOfMemoryException. After using a memory profiler, the problem source seems to be the following chain:

InterleavingNode

-> System.Windows.Xps.Packaging.XpsFixedPageReaderWriter
-> _parentNode (field)
--> XpsFixedDocumentReaderWriter
--> _pageCache (field of type List<IXpsFixedPageReader>)

---> 800 instances of XpsFixedPageReaderWriter

-----> 2400 instances of System.IO.StringWriter = 2400 instances of System.Text.StringBuilder

or in other words:

There seems to be a page cache that is growing all the time, while we are generating the XPS document. So if we generate a huge document with many thousands of pages we get sooner or later an OutOfMemoryException (depending on the users available memory).

There has been a similar question here:

https://connect.microsoft.com/VisualStudio/feedback/details/788507/creating-xps-document-with-visuals-collator-consumes-a-very-large-amount-of-memory

But there has never been a solution or workaround to this. I am currently using Windows 8.

Thanks