A printer comprises a cassette bay (8) having a lid (16), a printing mechanism comprising a thermal print head (26) and a platen (32) and a mechanism (38, 50) for moving the theremal print head between an inoperative and an operative position. The mechanism is also responsible for simultaneously moving...http://www.google.com/patents/US5165806?utm_source=gb-gplus-sharePatent US5165806 - Thermal printer with movable drive roll
