Toner Refill Store carries a large selection of empty virgin cores. We collect our empty cores from schools, hospitals, not-for-profit companies, and charities. We reimburse them for recycling their cores and keeping our planet green. Toner Refill Store Empties cores are an easy, economical, and green way to reuse toner cartridges. Our empty cores can be refilled using our premium toner refill kits and used in your printer. Most cartridges are not worn out when they give you the 'low toner' error, but instead can be refilled multiple times. We are constantly getting in new cores everyday to our warehouse. Feel free to give us a call toll free at (877) 626-1526 if you don't see your cartridge listed.