SL-M3870

Samsung's SL-M3870 is the ProXpress business multifunction of the 3870 line, delivering print, scan, and copy with departmental stamina. It is the shared MFP a busy office builds its workflow around.

It feeds on the MLT-D203S, MLT-D203L, MLT-D203U, or MLT-D203E. Our compatible cartridges keep costs in check; genuine OEM cartridges keep it factory-spec. Fast shipping from Clever Supplies.

Toner Cartridges for SL-M3870

This printer works with the following toner cartridges:

Samsung MLT-D203S
Samsung MLT-D203L
Samsung MLT-D203U
Samsung MLT-D203E

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Frequently Asked Questions

What mistakes do people make when buying toner for the SL-M3870?

Always shop by the cartridge code — MLT-D203S, MLT-D203L — rather than the printer name when buying for the SL-M3870. Samsung model names are confusingly similar, and one wrong letter can mean a cartridge that doesn't fit. The code on your old cartridge is the single source of truth.

Are compatible cartridges for the SL-M3870 worth it, or should I stay with OEM?

The practical difference usually shows up in consistency rather than any single page: a genuine MLT-D203S tends to deliver uniform density from first page to last in the SL-M3870. Compatibles can match that, but because they come from many different producers, results are less predictable. If you try a compatible in the SL-M3870, buy from a reputable seller and check early prints for streaking or light areas.

Can I duplex print on the SL-M3870 with heavy or glossy paper?

Double-sided printing on the SL-M3870 doesn't use extra toner — coverage per side is the same, you're just using both faces of the sheet. The savings are purely in paper, which still adds up fast in a busy office. Avoid duplexing envelopes, labels, or very heavy stock, which can jam.