Brother BU-229CL Genuine Transfer Belt Unit
Approx. 50,000 pagesGenuine BrotherUser-replaceableColour laser LED series
The Brother BU-229CL is the genuine transfer belt unit for Brother's current HL-L3200, HL-L8200, DCP-L3500, MFC-L3700 and MFC-L8300 colour printer families, rated by Brother at approximately 50,000 pages. It is the part to order when your printer reports that the belt is near its end of life or when colour prints show repeating marks, streaks or faded areas that new toner and a new drum have not fixed.
The belt carries each colour from the drum to the paper, so it wears gradually with every page. Replacing it is a user task: open the front cover, slide out the drum assembly, lift out the old belt and drop in the new one. No tools and no engineer visit are needed.
Before you order: BU-229CL fits the newer HL-L3220CW / DCP-L3520CDW / MFC-L3760CDW generation. Older models such as HL-L3210CW, HL-L3270CDW and MFC-L3750CDW use the BU-223CL belt instead and will not accept this unit.
What's in the Box
- 1 × Brother BU-229CL transfer belt unit
- Protective packaging for returning the used belt to recycling
- No toner, drum or waste toner box is included
What It Means in Practice
- Approx. 50,000 pages based on two pages per job; Brother quotes approx. 60,000 pages at three pages per job (A4/Letter single-sided). Many short jobs shorten belt life.
- The printer counts belt life itself and displays a Replace Belt message; after fitting the new unit the counter is reset from the machine menu as described in the user guide.
- A worn belt typically shows as uneven colour density or marks repeating down the page. If the problem only affects one colour, check that colour's toner and drum first.
What Will Not Work
- Not compatible with BU-223CL printers (HL-L3210CW, HL-L3230CDW, HL-L3270CDW, DCP-L3510CDW, DCP-L3550CDW, MFC-L3730CDN, MFC-L3750CDW, MFC-L3770CDW).
- Not for mono laser printers or for HL-L8260CDW / HL-L8360CDW / HL-L9310CDW class machines, which use different belts.
- It will not fix faults caused by an empty toner cartridge, a worn drum or a full waste toner box.
Key Features
Genuine Brother part
Made for the printer's own life counter and alignment, so the machine recognises and tracks it as intended.
Long rated life
Approx. 50,000 pages per belt, far longer than a toner cartridge, so most offices change it only once or twice in the printer's life.
Tool-free swap
Slides in behind the drum unit through the front cover in a few minutes.
Technical Specifications
| Identification |
| Part Number |
BU229CL |
| Brother Model |
BU-229CL |
| Brand |
Brother |
| Product Type |
Transfer belt unit (consumable) |
| Yield |
| Rated Life |
Approx. 50,000 pages (2 pages per job) |
| Alternative Rating |
Approx. 60,000 pages (3 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-L3215CW, HL-L3220CW, HL-L3220CWE, HL-L3240CDW, HL-L8230CDW, HL-L8240CDW |
| DCP Multifunction |
DCP-L3515CDW, DCP-L3520CDW, DCP-L3520CDWE, DCP-L3527CDW, DCP-L3555CDW, DCP-L3560CDW |
| MFC Multifunction |
MFC-L3740CDW, MFC-L3740CDWE, MFC-L3760CDW, MFC-L8340CDW, MFC-L8390CDW |
| 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
My printer says Replace Belt but prints still look fine. Should I change it now?
The message appears when the counter reaches the rated life. You can keep printing while quality is acceptable, but order the belt so you are ready when marks or uneven colours appear.
Is BU-229CL the same as BU-223CL?
No. They look similar but fit different printer generations. Check your model against the compatibility list before ordering.
Do I need to replace the drum at the same time?
No. The belt and drum have separate counters and lives; replace each when the printer asks for it.
Singular Expert Insight · Buyer's Guide
The transfer belt is the longest-lived consumable in these Brother colour printers, so it is easy to forget until the printer asks for it. The most common ordering mistake is BU-229CL versus BU-223CL: they are generation-specific, and the model name on your printer decides which one fits. Toner, drums and the waste toner box for the same printers are in our
printer accessories range.
✓ Buy it if your printer is on the BU-229CL list above and it reports Replace Belt or shows belt-related colour defects.
✕ Skip it if your printer is an HL-L3210CW, HL-L3270CDW, MFC-L3750CDW or other BU-223CL model.
→ Also consider Brother BU-223CL for the previous HL-L3200/MFC-L3700 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.