Amazon.com: (15,000 Pages) TG Imaging Compatible MLT-D203U Toner Cartridge Replacement for Samsung MLTD203U Super High Yield 1-Pack Worked with SL- M4020 SL-M4070 SL-M4072 SL- M4020ND SL-M4070FR Toner Printer (MLT-D203L High Yield Version) :
Samsung SL-M4020 M4070 Toner MLT-D203U Compatible
Amazon.com: Toner Cartridge MLT-D203L Works for Samsung Pro Xpress M3320 M3310 M3820 M4020 M3370FD M3870 M4070FD FW M4072 Printer, Yields Up to 10,000 Pages Black : Office Products