Comment 17 for bug 539708

According to the error_log the printing process behaves as I thought. At the beginning of the page Ghostscript crashes and there is no output to the next filter any more. Even without getting input, the rastertogutenprint filter and the backend continue working and they seem to fill the missing input with zeros which means black in your case.

According to the Ghostscript command line in your error_log you are using "Grayscale" as "Color Model" setting. Can you try other settings here and see whether they work?