A media cartridge is constructed as a case in which a roll of blank media may be deployed for supplying a wallpaper printer. The case has two halves, hinged together. An area between the two halves, when they are closed, defines a media supply slot. The case has internally and adjacent to the slot, a pair of rollers. At least one of the rollers is a driven roller which is supported at each end, by the case, for rotation by an external motor.