In order to provide a lightweight, low-cost portable image processing device capable of reading the front and reverse side of a manuscript or printing on the front and reverse side of paper in one loading there is provided one or more read heads and/or print heads, one or more platen rollers and a guide...http://www.google.fr/patents/US6000867?utm_source=gb-gplus-shareBrevet US6000867 - Portable image processing device
