HP Samsung MLT-D101S Black Original Toner Cartridge - Laser, Up to 1500 pages ISO/IEC 19752, for Samsung ML-2160, 2161, 2162, 2163, 2164, 2165, 2168, SCX-3400, 3401, 3405, 3406, SF-761 - SU700A at TigerDirect.com
How to Replace Toner Cartridge for Samsung SCX-3400 Printer - iFixit Repair Guide
Amazon.com: (2-Pack, Black) ColorPrint Compatible Toner Cartridge Replacement for Samsung MLT-D101S MLTD101S D101S 101S Work with ML-2160 ML-2165W ML-2165 SCX-3400 SCX-3405 SCX-3405FW SCX-3406HW SF-760P Printer : Office Products