I'm using 24" roll. I can not get this to print the size I want using the 6400 driver in PS. No problem using the plugin but I want more control using the print driver in PS. I have tried everything I can think of and all I get is a portion of the picture printed on a big piece of wasted paper. It's forcing the paper size to 8.5x11 and printing a little strip in portrait orientation. I've selected custom size, other, Print size is set to custom. I'm sure I'm missing a simple switch someplace but after wasting about 10ft of paper I'm at my wits end..