A thermal printing machine is provided with a releasably attachable tape cassette which holds the tape on which an image is placed. The cassette includes a memory circuit component which includes at least 2 separate memory areas. The first area contains a first value which is read by the printing machine;...http://www.google.com/patents/US5318370?utm_source=gb-gplus-sharePatent US5318370 - Cartridge with data memory system and method regarding same
