1. An accessory device for imaging a document with a centerfold, the device comprising: a tubular device comprising a plurality of sides, the tubular device having a first dimension and a second dimension where the first dimension is less than the second dimension; a plurality of optical fibers each having a first end and a second end, the first end of each of the optical fibers arranged to form a first surface that is perpendicular to the optical fibers and is parallel to a platen of an image forming device, and the second end of the optical fibers arranged to form a second and a third surface that are parallel to a surface of a document being imaged.