COMPATIBLE, for Optra Series: Optra C, Optra C Pro, Compatible with Apple color laserwriter Series: Compatible is the new term for remanufactured, not generic. They are re-built by using parts from OEM cartridges that was once used and are environmentally friendly. They are reassembled and tested before packaging and are just as good as a brand new OEM genuine. Think Toner only purchase remanufacturedcompatible Toner Cartridges from remanufactures who have been around for many years; companies that we know are reputable and conducts stringent testing to ensure the highest quality before it gets to our customers. IE: When buying Lexmark Compatible 1361210 Black Toner Cartridge, you can rest assure that you are receiving the highest quality. You are also saving money when buying compatible printing products and overall when shopping at Think Toner. Optra C Lexmark original black toner 1361210