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Amazon.com: 7Magic Compatible Toner-Cartridge Replacement for Brother TN760 TN730 TN-760 TN-730 for DCP-L2550DW HL-L2350DW HL-L2370DW HL-L2370DWXL HL-L2370DW HL-L2390DW HL-L2395DW MFC-L2710DW (Black) : 7Magic: Office Products
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Amazon.com: E-Z Ink (TM Compatible Toner Cartridge Replacement for Brother TN227 TN-227 TN227BK TN227C TN227M TN227Y High Yield Compatible with HL-L3290CDW HL-L3210CW MFC-L3750CDW MFC-L3710CW Printer (4 Pack) : Office Products
![hardware - Identifying a toner chip and its communication protocol to re-program it - Reverse Engineering Stack Exchange hardware - Identifying a toner chip and its communication protocol to re-program it - Reverse Engineering Stack Exchange](https://i.stack.imgur.com/Y9LyP.png)