Remark:1.Black blank chip appearance is different from colors,attached picture is black ,and mian picture is color chip
2.You can buy empty chip from us and use our QE-PROG 9001 Rewriter to write chip by yourself,you just get datas by this rewriter from full original chips,then use our rewriter to write datas into empty chips
3.Our compatible can replace original chip for working on laser printer
4.If toner powders is used up,you need change chips for drum or both of OPC and Drum.Some printer 's OPC and Drum is together,so it just for one chip,but some printer's drum and OPC is separate,so you need change OPC Chip and Drum Chip
5.You need clean leftover toner powders in drum by Vacuum Tube Cleaner,then you can refill new good toner powders
