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Mutoh DG-42771 Printhead Assembly for ValueJet 1628TD 2628TD
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Factory-original Mutoh DG-42771 DX7 textile printhead assembly engineered for Mutoh ValueJet 1628TD and 2628TD direct-to-textile printers.
OEM Direct-to-Textile & Dye Sublimation Component
Original Mutoh DG-42771 Textile Printhead Assembly (ValueJet 1628TD / 2628TD)
OEM Part Number: DG-42771 | 8-Channel MicroPiezo Drop-on-Demand (DoD) Piezoelectric Aqueous Textile & Disperse/Pigment Printhead Module
ValueJet "TD" Textile Series Dual-Head Architecture Notice
The Mutoh DG-42771 Printhead Assembly is the authentic factory-original OEM replacement component engineered specifically for Mutoh’s production-grade direct-to-textile and sublimation presses: the ValueJet 1628TD (64-inch) and ValueJet 2628TD (102-inch). Operating in dual-head staggered carriage configurations, this unit features aqueous fluidic manifolding and firmware encryption parameters calibrated to jet water-based dye sublimation, direct disperse dyes, and textile pigment ink formulations without acoustic cavitation or nozzle dropouts.
Product Overview
The Original Mutoh DG-42771 Textile Printhead Assembly is an industrial drop-on-demand (DoD) piezoelectric printhead designed for continuous high-speed textile production, soft signage, fashion apparel, interior furnishings, flags, trade show backdrops, and transfer paper sublimation. Installed in Head 1 or Head 2 positions within the dual-staggered carriage array of TD series machines, this module delivers wide swathe coverage per carriage pass.
Engineered with 1,440 active nozzles across 8 parallel lines (180 nozzles per line), the printhead achieves native optical output resolutions up to 1440 DPI. Leveraging advanced Variable Sized Droplet Technology (VSDT), it dynamically modulates droplet sizes from an ultra-fine 3.5 picoliters up to 21 picoliters. This dynamic volume control works with Mutoh’s Intelligent Interweaving (i²) wave algorithms to deliver smooth continuous-tone gradients, deep fiber ink penetration, and crisp vector line definition on open-weave and stretch fabrics.
Part Information
| Product Name | Original Mutoh ValueJet 1628TD / 2628TD Textile Printhead Assembly |
| OEM Manufacturer | Mutoh Industries Ltd. / Epson MicroPiezo Core (Japan) |
| Primary OEM Part Number | DG-42771 |
| Printhead Generation | MicroPiezo DX5 (Mutoh TD Textile Encrypted Architecture) |
| Component Classification | Industrial Drop-on-Demand (DoD) Aqueous Textile Printhead Module |
| Carriage Allocation Versatility | Universal Station: Mounts in Head 1 or Head 2 positions in the TD staggered carriage |
| Channel Versatility | Configurable for Dual CMYK (2 × 4 channels) or 8-Color Disperse/Sublimation Sets |
| Ink Chemistry Pairing | Water-Based Dye Sublimation Inks, Direct Disperse Dyes, and Water-Based Textile Pigments |
| Country of Origin | Japan (100% Genuine Original, Sealed Packaging) |
Technical Specifications
| Actuation Physics | Industrial MicroPiezo Drop-on-Demand (PZT Actuator System) |
| Active Addressable Nozzles | 1,440 nozzles total (8 parallel rows × 180 nozzles per line) |
| Native Optical Resolution | 1440 DPI (180 DPI per nozzle line / 360 DPI dual-channel interleaved) |
| Firing Frequency | 8 kHz nominal continuous firing frequency |
| Droplet Size Modulation | Variable Sized Droplet Technology (VSDT): 3.5 pl (minimum) up to 21 pl (maximum) |
| Effective Print Swath Width | 25.4 mm (1.0 inch) active swathe per unit (staggered dual-head carriage coverage) |
| Fluid Interface Manifold | 8 aqueous-passivated inlet nipple ports matched to TD textile damper lines |
| Electrical Interface | Dual 31-pin flat flexible cable (FFC) socket array with integrated chassis grounding tags |
| Operating Temperature & Humidity | 18°C to 30°C (64°F to 86°F); 40% to 70% RH non-condensing |
| Dimensions & Net Weight | 106 × 49.7 × 41.7 mm; Net weight: ~98 g / Packaged gross weight: ~0.24 kg |
Key Features & Operational Advantages
- Textile Rheology Passivation: Optimized for high water-content disperse and sublimation carriers, preventing micro-channel cavitation, foam formation, and faceplate drying.
- Dual-Head Staggered Throughput: Fires synchronously with its counterpart in the TD carriage, doubling print swathe coverage for rapid textile production.
- Intelligent Interweaving (i²) Compatibility: Delivers precise drop placement to support Mutoh’s wave print algorithms, eliminating horizontal banding across textured fabrics.
- Direct Drop-In OEM Fitment: Built to exact Mutoh factory dimensions, restoring original droplet trajectory and carriage height clearance without mechanical alterations.
CRITICAL TECHNICAL & SERVICE ADVISORY
1. Platform & Model Specificity (DG-42771 vs. Eco-Solvent Heads): The DG-42771 is engineered specifically for ValueJet 1628TD and 2628TD textile systems running aqueous dye sublimation or disperse inks. It is not interchangeable with eco-solvent dual-head printheads (DG-41914 for VJ-1618) or hybrid heads (DG-42386 for VJ-1608H). Using standard solvent heads can cause fluid compatibility failures and communication errors on TD carriage boards.
2. Dual-Head Slant & Registration Calibration: In TD series staggered carriage arrays, head replacement requires physical mechanical leveling against precision carriage reference pins followed by Service Mode electronic dot registration (`HEAD SLANT` and `INTER-HEAD ADJUST`) to align the two heads across both forward and reverse scan passes.
3. Mandatory Head-Rank ID Calibration: After mechanical installation, the technician MUST enter the alphanumeric Head-Rank ID (printed on the barcode label) via the Mutoh Maintenance Engineer Software (`MSA`). Running without registering the factory voltage rank leads to drop velocity deviations, color cast variations, and premature piezo channel degradation.
4. Faceplate Maintenance Precautions: Clean the orifice faceplate only using approved lint-free foam swabs moistened with genuine Mutoh aqueous textile cleaning solution. Never use aggressive solvent cleaners. Inspect and clean the rubber capping station seals and wiper blades regularly to avoid dried pigment build-up along the nozzle row.
Compatible Models & Systems
| Series / Lineup | Compatible Printer Models | Carriage Configuration |
|---|---|---|
| Mutoh ValueJet 1628TD | ValueJet 1628TD (VJ-1628TD) | 64-inch Direct Textile & Sublimation (Dual-Head Array) |
| Mutoh ValueJet 2628TD | ValueJet 2628TD (VJ-2628TD) | 102-inch Grand-Format Textile Press (Dual-Head Array) |
| Mutoh ValueJet 1618 (Reference) | VJ-1618, VJ-1618W | Incompatible: Dedicated eco-solvent dual-head series uses DG-41914 |
| Mutoh ValueJet 1608H (Reference) | VJ-1608H, VJ-1608HS | Incompatible: Hybrid Bio/Resin platform uses DG-42386 |
| Mutoh ValueJet 1938TX (Reference) | VJ-1938TX | Incompatible: Next-gen direct textile models use DX7 printheads |
*Model Differentiation Note: Specifically engineered for Mutoh ValueJet 1628TD and 2628TD textile systems. Confirm machine model number and carriage head position prior to unpacking.
Terms, Warranty & Customer Protection
Condition: 100% Brand New, Genuine OEM Factory-Original Mutoh replacement printhead assembly in sealed factory packaging with factory shipping preservation fluid intact.
Manufacturer Warranty: Covered under standard OEM parts limited warranty against material and manufacturing defects out-of-box prior to ink introduction. No warranty applies once active textile/sublimation ink or flush fluid has been introduced into the micro-fluidic chambers, or if damage results from head strikes, fabric jams, electrostatic discharge, or improper cable seating.
Return Policy: Precision industrial electronic component. Unopened, factory-sealed boxes with intact tamper-evident seals are eligible for standard commercial return. Once the vacuum seal is broken, protective nozzle tape removed, or the head mounted onto a carriage frame, returns cannot be accepted due to fluid priming, static risk, and electrical contamination hazards.
DG-42771
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