All products are warranted against manufacturing defect for a period of ONE YEAR from the date of purchase. Any cartridge that is greater then 75% empty based on weight will not receive credit. All non-defective returns will be subject to a 20% restocking fee. No credit or refund will be issued until the returns are received and processed. Any cartridge that has been abused or tampered with will not be accepted. All cartridges which are not accepted as returns will be disposed of unless request has been made for their return on your packing slip. All toner cartridges must be returned in the original packaging in order to ensure proper credit. If returned without original packaging no credit will be issued for toner cartridges.