The present invention is in the area of tracking objects with systems such as correlation, gridlocking, optical correlation, and combinations thereof. The peripheral device transfers data to the host processor over the attachment bus using at least two types of data transfers. The cover has a pocket attached to the underside for storage of items that are small, fragile or valuable. The supplementary roller 26 is in contact with a rear face of the intermediate transfer belt 21 in such a manner that a gap between a reading face of the reading section 25 and the surface of the intermediate transfer belt 21 is kept constant.