Cartridges Compatibility. The Lexmark C910, C912 toner cartridges are unique to the C910, C912 printers. Toner cartridges intended for use with printers other than the Lexmark C910, C912 cannot be used. Media Compatibility. The Colour Laser Transparency is compatible with Lexmark C710 C750, C910 & Optra Colour 1200 The Laser Glossy Paper is compatible with Lexmark C910 & C750.