I've been an avid user of QImage since 1994 and LOVE it.  However I just reprinted an image that I had to make a correction to using Elements 6 that resulted in lines across the top one third of the image.  The original image didn't print the lines.  The correction just required a bit of lightening and nothing else.  I printed from a PSD file as well as trying a Jpeg and a TIFF version.  All showed these lines as if the image was printed with individual passes of my Canon I9900 printer.  Other images printed at the same time didn't show these lines.  I'm stumped.  Any suggestions?