A mechanism in which appending information such as a quantity of advertisement information appended to a record medium and its size is previously stored in a memory to determine service contents according to the stored appending information....http://www.google.es/patents/US6913195?utm_source=gb-gplus-sharePatente US6913195 - Discounting system, discounting device, discounting method, discounting program, record medium, cartridge, print controller, print control method, and print control program
