ProXpress M3370

The ProXpress M3370 steps up from the M3320 with a faster engine and integrated fax, targeting offices where the MFP is the communications hub as well as the printer. Fax-heavy machines have a sneaky toner habit — every received fax is a printed page — so the MLT-D203U (15,000 pages) earns its keep here faster than on a print-only box. All four MLT-D203 yields (D203S 3K, D203L 5K, D203E 10K, D203U 15K) fit, and our compatible versions keep faxing cheap.

Toner Cartridges for Konica Minolta ProXpress M3370

This printer works with the following toner cartridges:

Konica Minolta MLT-D203E
Konica Minolta MLT-D203L
Konica Minolta MLT-D203S
Konica Minolta MLT-D203U

Frequently Asked Questions

We replaced an M3320 with the faster M3370 - will our MLT-D203 budget change?

Only if your page volume changes. The M3370 uses the same MLT-D203S/L/E/U cartridges with the same per-page consumption - speed affects how fast jobs finish, not how much toner each page uses.

My M3370 prints gray instead of true black - is the MLT-D203 failing?

Check the driver first: eco or toner-save modes intentionally lighten output. If those are off and black is still gray, the cartridge is likely near empty - replace it with your preferred MLT-D203 size.

Can I stock one toner type for both our M3320 and M3370?

Yes - both models share the entire MLT-D203S/L/E/U family. Standardize on one size (L is the popular middle ground) and a single inventory covers both printers.