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A dye-sublimation printer is a computer printer which employs a printing process that uses heat to transfer dye onto a medium such as a plastic card, paper, or fabric. The sublimation name is applied because the dye transitions between the solid and gas states without going through a liquid stage. Many consumer and professional dye-sublimation printers are designed and used for producing photographic prints. Most dye-sublimation printers use CMYO (cyan, magenta, yellow and over coating) colors, which differs from the more recognized CMYK colors in that the black dye is eliminated in favor of a clear over coating is also stored on the ribbon and is effectively a thin laminate which protects the print from discoloration from UV light and the air, also water resistant.