1) Stable quality,High darkness, lowers waste powder, no gray background 2) Preferential price; fast delivery; perfect service. Product details: Copier Toner Cartridge NPG-16/GPR-4 Suitable for: CANON IR5000/6000Volume: 1650g Quality Guarantee1) We have the strong advantage of quality and cost control. We runs completely according to ISO9001 quality system. 2) We can ensure the quality can meet ...