Toner cartridges are a very consumable product and therefore it is very important environmentally to get an extra use out of the cartridges. The remanufacturing process involves insuring the integrity of the used cartridge, replacing parts where necessary, and then refilling the cartridge with high quality ink. These remanufactured cartridges are 100% guaranteed by the remanufacturer to meet OEM specifications. Significantly, there is generally a 25% or greater discount on these cartridges from the typical OEM price. Eco Category: reuse.