Opc: Use for Epson,Hp,Canon,Lexmark,Lenovo,Dell,Xerox,Brother,Samsung,Panosonic,IBM.and high quality Opc: 1.Effectively prevent noise, enhance reducing waste powder amount 2.Improve the wearability of drum core 3. Competitive price and quality,fast delivery,strict quality control before we deliver the goods. Trademanager:cn201576025