Evolis R3314 YMCKOK ribbons consist of yellow (Y), magenta (M) and cyan (C) panels for printing a full spectrum of colors by combining the colors using varying degrees of heat and the O panel is a thin, clear protective overlay. . The two K panels are black resin, typically used for printing text and barcodes. Evolis R3314 YMCKOK ribbons are for dual-sided printing , with YMC, the first K panel and O panel printing on the front side, the second K panel prints on the back side of the card. Right since our fledgling days, Evolis has always been at the forefront of innovation by creating quality-focused products. As requirements and technologies have changed over time, and to meet versatile consumer demands, Evolis has now updated its offering in introducing a new patented range of consumables: Evolis High Trust®. This brand focuses on supporting user requirements in printing on plastic cards. The Evolis High Trust® consumables have been exclusively designed to work with the Evolis printers. Tested and validated by the Evolis R&D and Quality departments, these consumables bring you printing quality and reliability, maximizing the lifespan of the print head. The use of consumables other than Evolis High Trust may lead to a bad printing quality and a dysfunction of the printer and will void your warranty. The Evolis High Trust® range provides the following benefits: • Premium quality products • Ease of use • A technology design to make printing tasks simple for the user • A key enabler in maximizing the lifespan of an Evolis printer • A limited environmental impact from both a manufacturing and distribution standpoint.