50f0x0g High yield Toner, 10,000 Page yield, Black Food Warming Carriers Each refill freshens up to LLR60647 Each refill freshens up to 45 days Scott Pro provides state of the art solutions to maximize productivity Lexmark Return Program Cartridges: Lexmark Return Program cartridges are patented print cartridges sold at a discount in exchange for the customer’s agreement to the license requirement that the cartridges will be used only once and returned only to Lexmark for remanufacturing and or recycling Lexmark Cartridge Collection Program: Recycle all your used Lexmark supplies by letting us take care of the details