A printing system is provided having a support structure, a print media drive mechanism mounted to the support structure and a media cartridge removably received by the support structure. The media cartridge has a casing housing a roll of print media and a print media delivery arrangement. The casing has a door which is arranged to be opened to enable the print media delivery arrangement to couple with the print media drive mechanism for feeding the print media from the roll. The print media drive mechanism has a pivotal carrier, a first drive motor arranged to impart pivotal drive to the carrier, a primary drive roller mounted to the carrier to engage the roll of print media when the door in the cartridge is open, a second drive motor arranged to impart rotary drive to the primary drive roller, and a third drive motor which engages a drive roller of the print media delivery arrangement.