Essentially you have a choice of four types of toner that can be used with your printer.
Lexmark Return Program Cartridges are discounted cartridges which use genuine Lexmark toner that has been recycled. The customer receives this discount based on an agreement to only use the cartridge once and return it to Lexmark in order to be recycled. Free postage will be provided for returning cartridges
1) Choose original High Capacity toners. These have never been used before and typically rated at 15,000 pages per toner cartridge @ 5% coverage. 15G032 Series.
2) Choose original High Capacity "return programme toners". These are recycled toners that have been refilled by Lexmark and include a return lable so that your toner cartridge can be returned to Lexmark for further recycling. Typically 15,000 pages per cartridge and designed for heavy usage. They will last 2.5 times as long as the standard cartridge. 15G042 Series.
3) Choose original toners that have never been used before and typically are for standard usage and are rated at approx 6,000 pages per cartridge @ 5% coverage. 15G031 Series.
4) Choose "original return programme" toners. These cartridges have been recycled by Lexmark and include a free return lable. Typically rated @ 6,000 pages per toner @ 5% coverage. Designed for standard usage. 15G041 Series
All the above cartridges will provide excellent, consistent printing. The idea of the Return Programme is to provide an economic, excellent value alternative.