My 3880 is doing something that I'd never seen it do in the past. I'm printing images from Lightroom 3.4. When the image prints, it has a faint blue background that goes from the image to the specified margin, in whichever is the shorter dimension requiring extra white space. So for a long, skinny image, there's a faint blue background from the top and bottom to the margin, while the margin is white all around.
I set the borders for .38" on all four sides, and check "rotate to fit" and "repeat one photo per page", uncheck "zoom to fill". I've selected "single image / contact sheet". The page grid is set for 1x1. All of the stuff in the "page" - background color, ... - is unchecked. It's got the correct profile selected, and the driver is set to AccuPhoto2, Premium Phot Glossy paper (it's Canson Baryta), no color mgmt., 1440 dpi, high speed. I've tried increasing platen gap to "wide", paper thickness to 4, but that has no effect.
The Cell Size sliders are also behaving oddly. When I reduce the left and right margins, only the width slider changes. When I reduce the top / bottom margins, only the height changes. Even though the entire image is reduced and shows the correct aspect ratio on the screen, the sliders don't reflect the correct aspect ratio. When I reduce the cell size in the appropriate dimension manually, the blue background box gets smaller or goes away.
Any ideas? Thanks for any help with this!