Brother BU-223CL Genuine Transfer Belt Unit
Approx. 50,000 pagesGenuine BrotherUser-replaceableHL-L3200 / MFC-L3700 series
The Brother BU-223CL is the genuine transfer belt unit for the HL-L3210CW, HL-L3230CDW, HL-L3270CDW, DCP-L3510CDW, DCP-L3550CDW and MFC-L3700 colour LED printers, rated by Brother at approximately 50,000 pages. Order it when the printer shows a belt end-of-life message or when colour prints show repeating marks or uneven density that a new toner and drum have not cured.
The belt transfers each toner colour from the drum to the paper, so it wears with every page you print. It is a user-replaceable part: open the front cover, slide out the drum assembly, remove the old belt and insert the new one, then reset the belt counter from the printer menu.
Before you order: BU-223CL is for the HL-L3210CW / HL-L3270CDW / MFC-L3750CDW generation. The newer HL-L3220CW, HL-L3240CDW, DCP-L3520CDW and MFC-L3760CDW use the BU-229CL belt and will not accept this unit.
What's in the Box
- 1 × Brother BU-223CL transfer belt unit
- Protective packaging (reuse it to send the old belt for recycling)
- No toner cartridge, drum unit or waste toner box is included
What It Means in Practice
- Approx. 50,000 pages based on two pages per job (A4/Letter single-sided). Frequent one-page jobs shorten real-world life.
- The printer tracks belt life and tells you when to replace it; after fitting, reset the belt counter as described in the user guide so the warning clears.
- If only one colour is faint or streaky, the cause is usually that colour's toner or the drum, not the belt.
What Will Not Work
- Not compatible with BU-229CL printers (HL-L3220CW, HL-L3240CDW, DCP-L3520CDW, DCP-L3560CDW, MFC-L3740CDW, MFC-L3760CDW, MFC-L8390CDW).
- Not for HL-L8260CDW, HL-L8360CDW, HL-L9310CDW or mono laser printers.
- It does not replace toner, the drum unit or the waste toner box.
Key Features
Genuine Brother part
Matches the printer's own life counter and belt alignment, so it is recognised and tracked correctly.
Long rated life
Approx. 50,000 pages, so most offices change it once or twice over the printer's life.
Tool-free swap
Fitted through the front cover in a few minutes without an engineer.
Technical Specifications
| Identification |
| Part Number |
BU223CL |
| Brother Model |
BU-223CL |
| Brand |
Brother |
| Product Type |
Transfer belt unit (consumable) |
| Yield |
| Rated Life |
Approx. 50,000 pages (2 pages per job) |
| Basis |
A4/Letter single-sided pages; actual life depends on media type, size and job length |
| Compatibility (Brother EU) |
| HL Printers |
HL-L3210CW, HL-L3230CDW, HL-L3270CDW |
| DCP Multifunction |
DCP-L3510CDW, DCP-L3517CDW, DCP-L3550CDW |
| MFC Multifunction |
MFC-L3710CW, MFC-L3730CDN, MFC-L3750CDW, MFC-L3770CDW |
| Handling |
| Replacement |
User-replaceable through the front cover |
| Counter Reset |
From the printer menu after replacement |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
Brother does not publish a separate warranty term for this consumable; genuine Brother supply defects are handled through Singular |
Frequently Asked Questions
How do I know my printer takes BU-223CL and not BU-229CL?
Check the model on the front of the printer. HL-L3210CW, HL-L3230CDW, HL-L3270CDW, DCP-L3510/3517/3550CDW and MFC-L3710/3730/3750/3770 take BU-223CL; models ending in 3220, 3240, 3520, 3560, 3740 or 3760 take BU-229CL.
Can I keep printing after the Replace Belt message?
Usually yes while print quality stays acceptable, but order the belt so it is on hand when defects appear.
Do I need a technician?
No. Brother designs the belt to be replaced by the user through the front cover.
Singular Expert Insight · Buyer's Guide
BU-223CL and BU-229CL are the two belts most often confused in Brother's compact colour range: they look alike but are tied to different printer generations, and the model name on your printer is what decides. Matching toners and drums for these printers are in our
printer accessories range.
✓ Buy it if you have an HL-L3210CW, HL-L3270CDW, DCP-L3550CDW, MFC-L3750CDW or another model on the list above and the printer asks for a new belt.
✕ Skip it if your printer is an HL-L3220CW, HL-L3240CDW, DCP-L3520CDW, MFC-L3760CDW or other BU-229CL model.
→ Also consider Brother BU-229CL for the newer HL-L3220CW / MFC-L3760CDW generation.
Not sure it fits? Send us the exact model of your printer (it is printed on the front panel or on the rating label) and we will check compatibility before you order.