A printing cartridge that has a roll of print media, a tubular former on which the roll of print media is wound, the former having a plurality of ink supply containers for different types of ink, a casing with a pair of molded covers which releasably fasten together to encase the roll of print media....http://www.google.es/patents/US8020979?utm_source=gb-gplus-sharePatente US8020979 - Cartridge with optically readalble print media and ink information
Cartridge with optically readalble print media and ink information
