The genuine Lexmark 73B20K0 toner cartridge comes packed with enough black toner powder to offer users of the Lexmark CX827de and CS827de an estimated 20,000 prints.Filled with a substantial amount of Lexmark black toner powder, the 73B20K0 is a refreshingly large toner cartridge that bucks trends too often prevalent in the industry. Lexmark have also seen fit to make the original 73B20K0 part of their \"Return Program\". The aforementioned program means that the genuine Lexmark 73B20K0 is offered at the low price shown here with the understanding that you will return the empty to them when you are done.