A printing cartridge includes a cover that defines a cylindrical storage volume and a print media feed slot. A cylindrical hollow core extends along a central axis of the cover. At least one ink container is positioned in the core. A length of print media is rolled about the core and positioned to be...http://www.google.com.au/patents/US20060077248?utm_source=gb-gplus-sharePatent US20060077248 - Printing cartridge incorporating print media and an internal feed mechanism