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Original Mutoh DH-40990 I47V Printhead Assembly
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Factory-original Mutoh DH-40990 (I47V) industrial printhead assembly engineered for high-throughput Mutoh commercial inkjet printing systems.
OEM High-Speed Commercial Wide-Format Component
Original Mutoh DH-40990 I47V Printhead Assembly
OEM Part Number: DH-40990 | Engineering Classification: Print Head Assy I47V / ValueJet 1604X High-Speed Commercial Series | 8-Channel MicroPiezo Drop-on-Demand (DoD) Multi-Drop Printhead Module
Mutoh I47V High-Speed Commercial Architecture Notice
The Mutoh DH-40990 Printhead Assembly (engineering service designation Print Head Assy I47V) is an authentic factory-original OEM replacement component engineered for Mutoh’s commercial production sign presses—including the ValueJet 1604X and specialized high-speed commercial platforms. Operating on the I47V MicroPiezo transducer core, this module features enhanced high-frequency waveform drive electronics, solvent-passivated internal manifold cavity bonding, and authentic Mutoh mainboard firmware encryption designed specifically for genuine Mutoh Eco-Ultra, Universal Mild Solvent (UMS), and eco-solvent production ink sets.
Product Overview
The Original Mutoh DH-40990 (I47V) Printhead Assembly is an industrial drop-on-demand (DoD) piezoelectric printhead designed for high-throughput commercial graphics, fleet vehicle wraps, outdoor banners, backlit lightboxes, fine-art canvas, and retail signage. Consolidating 8 independent fluid channels within a single monolithic chassis, this module enables continuous dual CMYK (2 × 4 channels) printing with high inter-channel isolation and balanced hydrodynamic ink feed.
Featuring 1,440 active addressable nozzles partitioned across 8 parallel lines (180 nozzles per line), the printhead delivers native optical output resolutions up to 1440 DPI. Leveraging advanced multi-drop grayscale waveform modulation, the unit dynamically modulates droplet volumes from an ultra-fine 1.5 picoliters up to 21 picoliters. This wide dynamic droplet range works with Mutoh’s Intelligent Interweaving (i²) wave printing algorithms to eliminate horizontal banding, rendering smooth continuous-tone gradations, skin tones, and sharp fine vector text.
Part Information
| Product Name | Original Mutoh DH-40990 I47V Printhead Assembly |
| OEM Manufacturer | Mutoh Industries Ltd. / MicroPiezo Transducer Core (Japan) |
| Primary OEM Part Number | DH-40990 |
| Engineering Service Description | Print Head Assy I47V (VJ-1604X / Commercial Series) |
| Core Transducer Architecture | Industrial MicroPiezo Drop-on-Demand (DoD) Piezoelectric Platform |
| Component Classification | Multi-Channel Eco-Solvent Industrial Drop-on-Demand Printhead Module |
| Supported Channel Routing | Dual CMYK (2 × 4 channels: Cyan, Magenta, Yellow, Black) |
| Ink Chemistry Pairing | Mutoh Eco-Ultra, Universal Mild Solvent (UMS), & Factory Eco-Solvent Inks |
| Country of Origin | Japan (100% Genuine Original, Sealed Factory 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) |
| Droplet Size Modulation | Multi-drop variable dot grayscale waveform: 1.5 pl (minimum) up to 21 pl (maximum) |
| Effective Print Swath Width | 25.4 mm (1.0 inch) active swathe coverage |
| Fluid Interface Manifold | 8 solvent-passivated manifold inlet ports matched to ValueJet pipe damper lines |
| Faceplate Surface Metallurgy | Fluororesin anti-wetting coated orifice faceplate preventing solvent puddling and ink buildup |
| Electrical Interface | Dual high-density flat flexible cable (FFC) socket array with integrated chassis grounding tags |
| Operating Temperature & Humidity | 18°C to 30°C (64°F to 86°F); 35% to 65% 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
- High-Resolution 1.5 pl Micro-Droplets: Fine 1.5 picoliter minimum droplet ejection renders continuous-tone transitions and fine vector details without dot graininess.
- Solvent-Resistant Cavity Passivation: Fortified epoxy bonding and internal passivations resist aggressive Eco-Ultra glycol ethers and UMS diluents, preventing cavity delamination and cross-channel bleed.
- Intelligent Interweaving (i²) Optimization: Tight nozzle pitch manufacturing and uniform drop velocity guarantee smooth wave-pattern blending, eliminating horizontal banding across production passes.
- Direct Drop-In OEM Fitment: Built to exact Mutoh factory dimensions, restoring original droplet trajectory and carriage height parallelization without bracket modifications.
CRITICAL TECHNICAL & SERVICE ADVISORY
1. Platform & Encryption Specificity (DH-40990 I47V vs. DF-49684 DX5 vs. DH-40274 DX7): The DH-40990 is engineered specifically for Mutoh ValueJet 1604X and designated commercial series running the I47V configuration. It is not interchangeable with classic DX5 heads (DF-49684 for VJ-1604 / VJ-1204), generic unlocked DX5 heads (F186000), or DX7 heads (DH-40274 for VJ-1624). Confirming mainboard firmware version and carriage board compatibility is mandatory prior to unpacking.
2. Mandatory Head-Rank ID Calibration: After mechanical mounting, the service technician MUST enter the alphanumeric Head-Rank ID (printed on the barcode label) via the Mutoh Maintenance Engineer Software (`MSA`). Running the head without updating the voltage rank results in drop deflection, satellite misting, and accelerated piezo channel degradation.
3. Mandatory FFC Cable & Damper Servicing: Always install brand-new flat flexible head data cables (FFC) and new eco-solvent dampers concurrently. Bent, frayed, or ink-contaminated ribbon cable pins will short-circuit internal piezo driver transistors, instantly destroying mainboard driver ICs and onboard fuses.
4. Faceplate Maintenance Precautions: Never wipe the delicate orifice faceplate with dry shop wipes or coarse paper towels. Clean only using approved lint-free foam swabs moistened with genuine Mutoh Eco-Ultra cleaning liquid. Regularly inspect and clean the rubber capping station seals and wiper blades to avoid dried solvent ink build-up along the nozzle row.
Compatible Models & Systems
| Series / Lineup | Compatible Printer Models | Carriage Configuration |
|---|---|---|
| Mutoh ValueJet 1604X Series | ValueJet 1604X (VJ-1604X) | 64-inch Single Head (Dual CMYK Eco-Solvent / UMS) |
| Mutoh ValueJet 1604 Classic (Reference) | VJ-1604, VJ-1204, VJ-1304 | Incompatible: Classic series utilizes DX5 printhead DF-49684 |
| Mutoh ValueJet 1624 Series (Reference) | VJ-1624, VJ-1624X | Incompatible: DX7 eco-solvent platform uses DH-40274 (DG-43988) |
| Mutoh XpertJet Pro Series (Reference) | XPJ-1641SR Pro, XPJ-1682SR Pro | Incompatible: Current Pro series uses I1600-E1 heads (DH-40694) |
*Model Differentiation Note: Specifically engineered for Mutoh ValueJet 1604X and designated commercial series running the I47V printhead assembly. Confirm machine model number and part code prior to unpacking.
Terms, Warranty & Customer Protection
Condition: 100% Brand New, Genuine OEM Factory-Original Mutoh replacement printhead assembly in sealed factory packaging with 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 solvent ink or flush fluid has been introduced into the micro-fluidic chambers, or if damage results from head strikes, media crashes, 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.
DH-40990
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