A dot code generator receives multimedia information to be coded and generates a dot code. A medium size detector detects a size of a print sheet on the basis of print information. A print position setting unit stores information on dot code print positions in accordance with various medium sizes, and...http://www.google.de/patents/US6160633?utm_source=gb-gplus-sharePatent US6160633 - Code printing apparatus for printing an optically readable code image at set positions on a print medium
