The natural evolution of the Unison Print System. The Unison Corporate cartridge life cycle, guided by the principles of zero waste and the circular economy, occurs in the EU. Corporate Cartridges Driven by our commitment to corporate social responsibility and guided by the principles of zero waste and the circular economy, Lexmarks A4 CS/CX and MS/MX Corporate Cartridges further advance the sustainability innovations delivered by the Unison toner print system. The Corporate cartridges are manufactured in the EU. This ensures consistent product availability, minimises supply chain environmental impact and maintains production within the local economy. Lexmark Cartridge Collection Program Going green has never been easier. Recycle all your used Lexmark supplies by letting us take care of the details. Its simple, smart and always free. Unison Toner Essential to Lexmark print system performance, Unison Toner's unique formulation consistently delivers outstanding image quality, ensures long-life print system reliability and promotes superior sustainability -- all in an innovative shake-free print system. Best Together Genuine Lexmark supplies are engineered to work Best Together with your Lexmark printer, delivering excellent print quality from the first page to the last. Standard Yield Keep up-front costs low and quality high with Genuine Lexmark cartridges. Standard Yield cartridges offer a lower purchase price and contain fewer pages than High Yield cartridges do. Perfect for low volume printing. Lexmark Return Program Cartridges Lexmark Return Program cartridges are patented print cartridges sold at a discount in exchange for the customers agreement to the license requirement that the cartridges will be used only once and returned only to Lexmark for remanufacturing