8543X toner cartridge chip 8543X toner cartridge chipTransfer item: DHL,TNT,FEDEX,UPS,Air shipping, Boat shippingCertification: ... :Warranty: if any fault products, we will make the replacement for free.Before leaving the factory , the products go through as ... , strong sunlight and rough trasportations tests to ensure the printing quality remanins high.5. Water resistant test to ensure printing won't ...