What Toner Does the Brother MFC-L3770CDW Use?
Last Updated:The Brother MFC-L3770CDW is a color laser all-in-one that uses the Brother TN-227 toner cartridge set (Black, Cyan, Magenta, Yellow), along with a separate Brother DR-223CL drum unit that is shared across all four colors.
Brother TN-227 Toner & Drum at a Glance
| Consumable | Part Number | Page Yield | Type |
|---|---|---|---|
| Black Toner | TN-227BK | ~3,000 pages | High Yield |
| Cyan Toner | TN-227C | ~2,300 pages | High Yield |
| Magenta Toner | TN-227M | ~2,300 pages | High Yield |
| Yellow Toner | TN-227Y | ~2,300 pages | High Yield |
| Drum Unit | DR-223CL | ~18,000 pages | Shared (all colors) |
Lower-cost standard-yield TN-223 cartridges are also compatible with the MFC-L3770CDW, along with the TN-227 high-yield versions. The DR-223CL drum unit is shared by all four toner colors and typically needs replacing far less often than the toner itself.
Save on Brother TN-227 Toner
You can save money by choosing remanufactured or compatible cartridges instead of OEM. Browse our selection of Brother TN-227 toner cartridges to find the best price for your MFC-L3770CDW.
How to Replace the Toner
- Open the front cover of the Brother MFC-L3770CDW.
- Pull out the drum unit and toner cartridge assembly.
- Push down the lock lever and remove the empty toner cartridge from the drum unit.
- Unbox the new TN-227 cartridge, gently rock it side-to-side to distribute toner, and remove the protective cover.
- Insert the new cartridge into the drum unit until it locks into place, then reinstall the assembly and close the front cover.
Troubleshooting Tips
"Replace Toner" message appears too early: Brother cartridges use a chip-based counter. Remove and reseat the cartridge, or reset the toner counter from the printer's maintenance menu.
Faded, streaky, or spotted prints: Gently rock the toner cartridge to redistribute toner. If streaks persist, the DR-223CL drum unit may be reaching end of life and should be replaced.
Colors look muddy or misaligned: Run the color registration/calibration routine from the printer's control panel menu.
Paper jams: Check the paper path and rollers for debris, and make sure paper is loaded correctly and not overfilled.
Official Brother Resources
Bottom Line
The Brother MFC-L3770CDW uses TN-227 (or TN-223) toner cartridges plus a separate DR-223CL drum unit. Stock up on compatible replacements to keep your printer running for less. Shop Brother TN-227 toner here.
Frequently Asked Questions
Q: What toner does the Brother MFC-L3770CDW use?
A: It uses Brother TN-227 (high yield) or TN-223 (standard yield) toner cartridges in Black, Cyan, Magenta, and Yellow.
Q: Does the MFC-L3770CDW need a separate drum unit?
A: Yes — the Brother DR-223CL drum unit is separate from the toner cartridges and is shared across all four colors.
Q: Can I use compatible TN-227 cartridges?
A: Yes. Quality remanufactured and compatible TN-227 cartridges work reliably in the MFC-L3770CDW and cost much less than OEM.
Q: How often does the drum unit need replacing?
A: The DR-223CL drum is rated for about 18,000 pages, roughly six times the yield of a single toner cartridge.
Q: Where can I buy Brother TN-227 toner?
A: Browse Brother TN-227 toner cartridges at Castle Ink for genuine, remanufactured, and compatible options.
— William Elward, Castle Ink
Shop Compatible Toner at Castle Ink
Save 50–70% on replacement toner for the Brother MFC-L3770CDW. Guaranteed to work — backed by Castle Ink's compatibility guarantee.
Buy the Brother MFC-L3770CDW on Amazon: Buy the Brother MFC-L3770CDW on Amazon
See also: What Toner Does the Canon imageCLASS D570 Use? | What Toner Does the Brother HL-L8360CDW Use?