The invention claimed is a scanner which allows for any type of media, including embossed credit cards, with a thickness in the range of 0.1 mm to 1.5 mm to be inserted into the media path and remain in constant contact with the CIS as a result of a spring loaded roller, gear, and cantilever system....http://www.google.com/patents/US8004727?utm_source=gb-gplus-sharePatent US8004727 - Automatically adjusting multi-media scanner
