Patent ID: 7102659

Claim:
An ink sheet cartridge, comprising: four spools; a cartridge body that rotatably supports the four spools; a supply-side core tube having two ends opposite from each other; a takeup-side core tube having two ends opposite from each other; and an ink sheet wound around and extending between the supply-side core tube and the takeup-side core tube, wherein the four spools are detachably engaged with the corresponding ends of the supply-side core tube and the takeup-side core tube, and one of the four spools has an engagement pawl, and one of the supply-side core tube and the takeup-side core tube is provided with an engagement member for engaging the engagement pawl, wherein the one of the supply-side core tube and the takeup-side core tube has an inner peripheral surface, and the engagement member has a projection inwardly protruding from the inner peripheral surface.