MFC-L3770CD
The Brother MFC-L3770CD is a color laser all-in-one that prints with the TN223 toner family: black (TN223BK), cyan (TN223C), magenta (TN223M) and yellow (TN223Y). This page gathers the range — genuine OEM TN223 cartridges in each color, compatible TN223 cartridges sold individually, and 4-color sets that replace the full set at once.
The TN223BK black cartridge yields approximately 1,400 pages, while each color cartridge (TN223C, TN223M, TN223Y) yields about 1,300 pages. Because color printers consume each color at its own rate, buying the 4-color set is the convenient way to refresh the whole printer in a single order.
| Cartridge | Color | Approx. Yield |
|---|---|---|
| Brother TN223BK | Black | 1,400 pages |
| Brother TN223C | Cyan | 1,300 pages |
| Brother TN223M | Magenta | 1,300 pages |
| Brother TN223Y | Yellow | 1,300 pages |
Frequently Asked Questions
Which toner does the Brother MFC-L3770CD use?
The MFC-L3770CD uses the Brother TN223 family: TN223BK (black, about 1,400 pages) and TN223C, TN223M, TN223Y (cyan, magenta, yellow — about 1,300 pages each).
Can I replace just one color?
Yes. Each TN223 color is a separate cartridge, so you only replace the color that runs out. The 4-color set is for refreshing all four at once.
What is the difference between TN223 and TN227?
The TN227 is the high-yield version of this family (about 3,000 pages black, 2,300 pages color). This page carries the standard-yield TN223 cartridges.
Are genuine OEM and compatible cartridges both available?
Yes — this page lists Brother genuine OEM TN223 cartridges in all four colors alongside compatible TN223 options.
How do I know which color is empty?
The printer's display and status monitor show each color's remaining toner level, so you can order exactly the cartridge you need.