MLT-D203L Toner For Samsung ProXpress SL M3320,M3370,M3820,M3870,M4020,M4070 -5k
How to refill your Samsung M3320ND, SL-M3820DW (MLT-D203L) cartridge - YouTube
M332x 382x 402x Release Note English | PDF | Booting | Printer (Computing)
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