An apparatus and method for printing images from a digital image source onto a photosensitive medium (22) using one or more two-dimensional light-emissive arrays (51) such as OLED arrays. Each image pixel has a corresponding light-emitting element which is assigned a variable intensity based on data for that pixel. Imaging optics (58) direct the light from each light-emitting element onto the photosensitive medium (22) so that a monochromatic or multicolor image can be formed with a single exposure.