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Brother D01L64001 Printhead Carriage Assembly (D01L64002) for HL-T4000DW MFC-T4500DW
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Genuine OEM Brother D01L64001 (superseding D01L64002) wide-format A3 printhead carriage unit designed for Brother HL-T4000DW and MFC-T4500DW Ink Tank printers.
OEM Service & Replacement Assembly
Original Brother D01L64001 / D01L64002 Printhead Carriage Assembly
OEM Part Number: D01L64001 / D01L64002 | Wide-Format A3 Refill Tank System Carriage Unit & Interconnect Chassis
A3 Ink Tank Architecture & Revision Notice
The Brother D01L64001 Carriage Assembly (and updated factory specification D01L64002) is an authentic OEM scanning carriage chassis engineered specifically for Brother’s wide-format A3 continuous refill tank series (HL-T4000DW and MFC-T4500DW). This assembly provides the rigid mechanical framework, linear encoder mounting bracket, damper securing clips, and flat flexible cable (FFC) routing channels necessary to support extended A3 stroke lengths without structural flex.
Product Overview
The Original Brother D01L64001 / D01L64002 Printhead Carriage Assembly is a factory-original electro-mechanical scanning carriage frame engineered for high-duty A3 commercial document printing, technical drafting, CAD schematics, and full-bleed graphic posters. Serving as the primary moving transport unit across the hardened steel guide shaft, this chassis securely anchors the piezo printhead module, maintains precise nozzle-to-platen distance (gap height), and provides guided relief for continuous ink delivery tubing.
Engineered with reinforced, low-friction composite slider bushings, the D01L64001 / D01L64002 prevents carriage tilt, yaw deflection, and vibration during high-speed bidirectional sweeps across the entire 11.7 × 17-inch print width. The assembly incorporates dedicated retention channels for the 4-line ink tube bundle (Black, Cyan, Magenta, Yellow), preventing line pinching or fatigue cracking. In addition, it integrates precision mounting tabs for the CR encoder sensor board, ensuring sub-micron positional tracking against the horizontal linear timing slit strip to avoid horizontal banding and drop placement displacement.
Part Information
| Product Name | Original Brother Printhead Carriage Assembly (A3 Ink Tank) |
| OEM Manufacturer | Brother Industries, Ltd. (Nagoya, Japan) |
| Primary OEM Part Numbers | D01L64001 / D01L64002 |
| Component Classification | Wide-Format (A3) Carriage Chassis & Head Retention Unit |
| Supported Media Format | Wide-Format A3 / Ledger (up to 297 × 420 mm / 11.7 × 16.5 in) |
| Compatible Printhead Engine | Brother High-Density Piezoelectric Printhead Assembly for T4000/T4500 |
| Ink Supply Pairing | Brother BTD60BK (Ultra High Yield Black) & BT5000 C/M/Y Inks |
| Manufacturing Quality | 100% Genuine Brother Factory Original Replacement Assembly |
Technical Specifications
| Structural Chassis Material | High-rigidity glass-filled polycarbonate/POM composite engineered for thermal stability |
| Guide Bushing System | Low-friction precision self-lubricating sleeve sliders matched to 12 mm steel carriage shaft |
| CR Encoder Sensor Mount | Dedicated bracket slot for Brother optical photo-interrupter CR sensor PCB |
| Fluid Interface Anchors | Molded locking saddles for 4-channel intermediate damper block and fluidic sub-manifold |
| Ribbon Cable (FFC) Management | Molded strain-relief channels and clamp fingers preventing ribbon flex fatigue across A3 span |
| Drive Belt Attachment | Integrated toothed timing belt clamp with anti-backlash spring tension seat |
| Operating Temperature Range | 10°C to 35°C (50°F to 95°F) |
| Operating Humidity Range | 20% to 80% RH non-condensing |
| Net Physical Weight | Approx. 135 grams (chassis frame alone) / Packaged: ~0.24 kg |
Key Features & Operational Advantages
- Reinforced Wide-Span Rigidity: Engineered with structural cross-ribbing to prevent torsional twist or center-sagging when traversing the wide A3 print platen, maintaining uniform head gap height.
- Protected Ink Tube Routing: Features molded radius guides that support the flexible continuous ink tubing through repeated A3 travel cycles, preventing kink points and ink flow starvation during continuous multi-page runs.
- Precision Encoder Alignment: Integrated optical sensor docking maintains exact parallel positioning relative to the transparent linear timing slit film, eliminating carriage position read errors.
- Direct 1:1 OEM Fitment: Fabricated to exact Brother factory engineering tolerances, enabling straightforward replacement without filing, shimming, or non-factory mechanical modifications.
CRITICAL TECHNICAL & SERVICE ADVISORY
1. Platform Incompatibility with A4 T-Series (D00078001 / D00592001): The D01L64001 / D01L64002 is engineered exclusively for wide-format A3 printers (HL-T4000DW / MFC-T4500DW). It cannot be fitted into A4 refill tank models such as the DCP-T300/T500W/T700W or DCP-T310/T510W/T710W (which use D00078001 or D00592001). The carriage dimensions, guide rod spacing, and belt retention clips are completely different.
2. Guide Rail Cleaning & Lubrication Protocol: Before mounting the new carriage onto the chassis rail, strip away all hardened grease, ink mist, and paper dust from the steel guide shaft using a cleanroom wipe and isopropyl alcohol. Re-lubricate the shaft and slider contact surfaces using Brother-approved synthetic grease (Floil / Krytox PTFE formulation). Operating the carriage dry will cause premature bushing wear and trigger Error 48 / Error 4F drive faults.
3. Linear Timing Strip (Encoder) Threading Care: Exercise extreme caution when threading the transparent linear timing strip through the carriage optical sensor slot. Never touch the optical strip with bare hands or crease the film. If smudged, clean gently with a dry microfiber cloth—never use alcohol on the timing strip as it will dissolve the printed index marks.
4. Post-Installation Maintenance Mode Calibration: Following mechanical reassembly, enter Brother Maintenance Mode (`Menu` > `Mono Start` > `Up Arrow 4 times` on the control panel) and execute:
• Function 68: Automatic printhead alignment and sensor check.
• Function 77: All-nozzle test print and bidirectional registration verification across the full A3 print platen.
Compatible Models & Systems
| Printer Platform | OEM Carriage Part No. | Supported Machine Configuration |
|---|---|---|
| Brother HL-T4000DW | D01L64001 / D01L64002 | A3 Continuous Ink Tank Single-Function Printer (Wireless & Duplex) |
| Brother MFC-T4500DW | D01L64001 / D01L64002 | A3 Continuous Ink Tank All-in-One Multi-Function Printer (Print/Scan/Copy/Fax) |
| A4 T-Series Platforms (Reference) | D00078001 / D00592001 | Incompatible: Standard A4 desktop models (DCP-T300/T500W/T700W) use compact carriage |
*Model Differentiation Note: Ensure the printer model tag confirms HL-T4000DW or MFC-T4500DW. For standard A4 ink tank models, refer to part number D00078001 / D00592001.
Terms, Warranty & Customer Protection
Condition: 100% Brand New, Genuine OEM Factory-Original Brother Replacement Service Assembly in protective factory packaging.
Manufacturer Warranty: Covered under Brother's standard OEM service parts limited warranty against defects in materials and workmanship prior to installation. No warranty covers damage resulting from mechanical forced insertion, broken plastic tabs, bent encoder brackets, or unlubricated guide rail scoring.
Return Policy: Precision electro-mechanical service part. Unopened, factory-sealed boxes are eligible for standard commercial return. Once the factory seal is broken, mounting screws attached, or the carriage installed onto a printer frame, returns cannot be accepted due to mechanical stress and installation wear risks.
D01L64001
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