Mtek warrants each toner or ink jet cartridge to be free of defects in both workmanship and materials for a period of 18 months.  Mtek cartridges are remanufactured to the highest quality control standards possible, guaranteeing performance that meets or exceeds that of the Original Equipment Manufacturer (OEM).  Mtek will replace any of its toner or ink jet cartridges found to be defective.  Mtek also warrants that, subject to the conditions stated below and under normal use, our cartridges will not damage, abnormally wear, or deteriorate any compatible printer.  If a defect in a Mtek remanufactured (or compatible) cartridge causes a printer to fail, Mtek will reimburse the customer the full amount for all service and repair of the printer.  This warranty is dependent upon the customer providing us with satisfactory evidence that the printer failure was due to a defect in the Mtek cartridge, including a written statement on an authorized service companies letterhead, dated and signed by the company’s field sales or service representative.  The product causing the damage must also be returned.  The tampering of any Mtek cartridge by any persons other than a Mtek representative voids all warranties and releases Mtek liability as stated above.  All returns must be returned in original packaging with protection.