Sharp FO-15CR Thermal Transfer Ink Ribbon is used for the Sharp UX-500, UX-510, UX-600, UX-600M, UX-1000, UX-1100, UX-1300, UX-1400, FO-1450, FO-1460, FO-1650, FO-1850 fax machines. Sharp brand supplies works best for your Sharp fax machines and make using Sharp Ribbons make them last longer.