On this page
- Why choose the genuine Brother TN-421Y toner
- Which capacity: TN-421Y, TN-423Y or TN-426Y?
- Printers compatible with the TN-421Y
- Page yield
- Installation and maintenance
- Use and tips
- Specifications
- Related products
- Frequently asked questions
Why choose the genuine Brother TN-421Y toner
The TN-421Y is the standard version of the yellow cartridge in the TN-421 range. Genuine Brother toner powder, matched to the DR-421CL drum and the fuser of these printers: sharp text, even solids, no leaks and no "toner not recognized" message. Toner powder does not dry out, so a printer used intermittently keeps the same print quality.
Which capacity: TN-421Y, TN-423Y or TN-426Y?
These references fit the same printers and differ only in the amount of toner: the TN-421Y (1,800 pages), the TN-423Y (4,000 pages, about 20% less per page) and the TN-426Y (6,500 pages, about 27% less per page). The TN-421Y suits occasional use; above 100 pages per month, a higher capacity costs less per page and is replaced less often.
Printers compatible with the TN-421Y
The TN-421Y is compatible with 5 Brother models (manufacturer list):
Check the exact reference on the label at the back or underneath the printer; the suffixes (D, DW, DN, CDW) matter.
Page yield
1,800 pages according to ISO/IEC 19798 (5% coverage, letter-type text). Graphics-heavy or bold documents reduce the actual yield. The cost per page shown next to the price is calculated from the current price and this yield, excluding drum and paper.
Installation and maintenance
Tool-free replacement: open the front cover, pull out the drum + toner assembly, unclip the old toner, insert the TN-421Y and put the assembly back. The DR-421CL drum is a separate part rated for about 30,000 pages; the printer signals when it needs replacing. On these color models, the BU-330CL belt unit and the WT-320CL waste toner box are also separate parts (about 50,000 pages). Used Brother toners can be returned free of charge through the Brother recycling program.
Use and tips
The TN-421Y suits regular office use: the cartridge (1,800 pages) lasts about 6 months at 300 pages per month and about 2 months at 1,000 pages per month. Beyond that, the TN-426Y (6,500 pages) costs less per page.
Store the cartridge in its original packaging, flat, away from direct light and humidity (0 to 35 °C), and unpack it only when installing. At the "Toner low" alert, plan the order: the printer keeps printing until "Replace toner" (the "Continue" menu setting extends printing further). The driver's toner save mode suits drafts; genuine cartridges preserve the printer's Brother warranty.
Specifications
| Manufacturer part number | TN-421Y (TN421Y) |
|---|---|
| EAN code | 4977766771634 |
| Type | Genuine Brother toner (OEM) |
| Technology | Color laser |
| Color | Yellow |
| Capacity | Standard |
| Page yield | 1,800 pages, ISO/IEC 19798 |
| XL toner yield | TN-423Y (4,000 pages) |
| XXL toner yield | TN-426Y (6,500 pages) |
| Matching drum unit | DR-421CL (about 30,000 pages) |
| Belt unit | BU-330CL (about 50,000 pages) |
| Waste toner box | WT-320CL (about 50,000 pages) |
| Contents | 1 toner cartridge |
| Net weight | 446 g |
| Product dimensions (L x W x H) | 183 x 140 x 343 mm |
| Origin | China |
| Compatible printers | 5 Brother HL, DCP, MFC models |
Related products
Frequently asked questions
Is the TN-421Y compatible with my Brother printer?
Yes if it appears in the list above (HL-L8260CDW to MFC-L8900CDW). If in doubt, compare the exact reference of your printer, suffix included.
What is the difference between TN-421Y and TN-423Y?
Same cartridge, same printers; the TN-421Y prints 1,800 pages, the TN-423Y 4,000 pages. The higher capacity costs less per page.
How many pages does the Brother TN-421Y print?
Up to 1,800 pages according to ISO/IEC 19798 at 5% coverage. The actual yield depends on the type of documents.
Do I need to replace the drum together with the toner?
No. The DR-421CL drum lasts about 30,000 pages, roughly 17 TN-421Y cartridges. The printer indicates when to replace it.
How should an unopened toner be stored?
Flat, in its packaging, away from light and heat; the powder does not dry out, a toner stored for two years works normally.
Where can I find the safety data sheet (SDS) for the TN-421Y?
On our Brother support page: safety data sheet for the TN-421Y in your language, manuals and FAQ for the compatible printers.