Patent ID: 8272795

Claim:
A cartridge detachable from a printer for printing an image on roll paper, said cartridge comprising: roll paper wound around a roller; flanges that (i) are provided to end portions of the roller, (ii) are used to hold said roll paper wound around the roller, and (iii) are made up of elastic members; and a separation member that is used to feed out said roll paper to outside of said cartridge, wherein said roll paper is brought into contact with said separation member and is fed outside of said cartridge when the roller is rotated in a direction to feed out said roll paper, wherein said roll paper that has been fed outside of said cartridge is taken up on outer circumferential portions of said flanges, and is rewound into said cartridge when the roller is rotated in a direction to rewind said roll paper, wherein the outer circumferential potions of said flanges comprise cylindrical holding portions that are used to take up said roll paper, and when the roller is rotated in the direction to feed out said roll paper the holding portions are deformed such that said roll paper is pulled from an inner side to an outer side of the holding portions, and wherein the holding potions are formed with notches, and the notches prevent said roll paper from being pulled inside the holding portions when the roller is rotated in the direction to rewind said roll paper.