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HP Scitex CMB Nova Head Module Assembly (CW903-62866)
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Factory-assembled Complete Module Body (CMB) integrating Spectra Nova piezoelectric architecture for HP Scitex grand-format printers.
OEM Industrial Modular Assembly
Original HP Scitex CMB Nova Head Module Assembly (CW903-62866)
OEM Part Number: CW903-62866 (Replaces 09-7101 / NUR 0907101) | Industrial Piezoelectric Drop-on-Demand (DoD) Printhead Module
Industrial Architecture & Platform Lineage
The CMB (Color Module Block) Nova Head Module Assembly (OEM SKU CW903-62866, superseding legacy NUR part number 09-7101) is an industrial grand-format print module designed for heavy-duty HP Scitex XP and FB production platforms (including the XP5300, XP5100, and FB7500). Built around the field-proven Fujifilm Dimatix / Spectra Nova JA 256/80 AAA piezoelectric printhead, this factory assembly integrates precision chassis alignment brackets, calibrated thermal heating blocks, and fluidic manifolds required for aggressive solvent and high-viscosity UV-curable inks.
Product Overview
The Original HP Scitex CMB Nova Head Module Assembly (CW903-62866) is an authentic OEM complete factory modular replacement engineered for high-throughput 3.2-meter and 5-meter grand-format industrial systems, including the HP Scitex XP5300 (Expedio Revolution), XP5100 (Expedio 5000), XP5500, XP2300, XP2500, FB7500, and Tempo series. Constructed to endure 24/7 continuous production schedules, the assembly combines the core piezoelectric actuator with pre-aligned mechanical indexing brackets, fluid purge interfaces, and an onboard heating jacket capable of operating at elevated fluid temperatures up to 90°C.
The module houses 256 active addressable nozzles arranged in a single-line array with a native 279 µm nozzle pitch (approximately 91 npi native, scalable up to 1200 optimized DPI via multi-pass interleaving). Firing calibrated, high-momentum 75 to 80 picoliter (pL) droplets at velocities reaching 8 m/s and pulse frequencies up to 20 kHz, this head assembly delivers robust ink penetration on open-weave mesh, heavy outdoor PVC banners, truck side curtains, corrugated display boards, and rigid acrylic sheets without drop trajectory deflection caused by turbulent air flow.
Part Information
| Assembly Product Name | Original HP Scitex CMB Nova Head Module Assembly |
| OEM Manufacturer | HP Inc. / HP Scitex / NUR Macroprinters (Fujifilm Dimatix Spectra Core) |
| OEM Part Number | CW903-62866 |
| Superseded / Cross-Reference Part Numbers | 09-7101 / 0907101 / Spectra Nova JA 256/80 AAA Base |
| Assembly Integration Scope | Complete module: Spectra Nova printhead pre-mounted with carriage alignment bracket, heater jacket, and fluidic manifolds |
| Color Configuration | Universal single-channel module; installs in any designated carriage color position (C, M, Y, K, LC, LM, or White) |
| Ink Chemistry Compatibility | HP Scitex UV-Curable Inks (XP/FB), Aggressive Industrial Solvent Inks, and Water-based Formulations |
| Manufacturing Origin | Genuine HP Scitex OEM / Dimatix USA |
Technical Specifications
| Jetting Technology | Piezoelectric Drop-on-Demand (DoD) Shear-Mode PZT |
| Active Addressable Nozzles | 256 active nozzles arranged inline |
| Nozzle Pitch & Diameter | 279 µm (0.011 inches) nozzle-to-nozzle spacing; approx. 52 µm orifice diameter |
| Calibrated Base Drop Volume | 75 to 80 picoliters (pL) nominal drop volume (operational range: 70–85 pL) |
| Nominal Drop Velocity | 8.0 meters per second (m/s) |
| Maximum Operating Frequency | Up to 20 kHz native firing frequency |
| Effective Print Swath Width | 53.3 mm (2.1 inches) |
| Operating Temperature Capability | Integrated internal heater control up to 90°C (194°F) for fluid viscosity tuning |
| Operating Viscosity Range | 8 to 20 centipoise (cP) at operating temperature |
| Operating Environmental Range | 15°C to 40°C; 20% to 80% RH non-condensing |
| Physical Dimensions & Weight | Approx. 100 × 65 × 90 mm (including chassis bracket); Net: ~500 g (full module assembly) |
Key Features & Operational Advantages
- Factory-Calibrated Pre-Assembled Module: Shipped as a complete factory unit with pre-installed mounting brackets, heater jacket, and fluid connectors, cutting replacement downtime compared to rebuilding bare printheads onto old bracket frames.
- High-Momentum 75–80 pL Drop Ejection: Heavy-drop jetting provides solid color density, deep substrate penetration, and high color saturation on textured banners, mesh, and wide-format textiles with high throw distances.
- High-Temperature Heated Viscosity Control: Integrated heating elements operate up to 90°C, enabling precise viscosity thinning for thick UV-curable monomers and industrial solvent inks.
- Robust Industrial PZT Shear-Mode Construction: Chemically isolated fluid pathways and a solid metallic orifice plate withstand repetitive positive-pressure purge cycles, automatic solvent wiping, and vacuum suction routines.
CRITICAL TECHNICAL & OPERATIONAL ADVISORY
1. Platform Differentiation from Latex & DesignJet Systems: The CW903-62866 CMB Nova Head Module is designed strictly for heavy industrial HP Scitex grand-format printers. It cannot be used in HP Latex printers (such as HP 881, 886, or 831 series) or standard DesignJet plotters. The head operates on dedicated high-voltage piezo waveforms (up to 100V–140V) distinct from thermal inkjet architectures.
2. Solvent Flushing & Fluid Charging: Prior to ink introduction, flush the factory preservation fluid using the appropriate HP Scitex flushing solvent. Mixing active UV-curable or solvent inks directly with storage fluid will cause pigment precipitation and irreversible nozzle clog formations.
3. Mechanical & Optical Head Alignment: Although the CMB module includes pre-aligned factory brackets, fine optical mechanical alignment (using the HP NUR Print Head Alignment Jig Kit / alignment target patterns) must be performed across theta (angular slant), horizontal spacing, and vertical drop offset after seating the module into the carriage plate.
4. Cable & High-Voltage Safety: Turn off main power breakers and discharge carriage capacitors before mating the flexible data ribbon cables. Connecting or disconnecting cables while the carriage board is powered will immediately blow the piezo driver FETs on the head control board.
Compatible Models & Systems
| Printer Platform | Ink Chemistry | Supported Grand-Format Systems |
|---|---|---|
| HP Scitex XP5300 Series | HP Scitex UV / Solvent | HP Scitex XP5300 5-m Grand-Format Production Printer (Expedio Revolution) |
| HP Scitex XP5100 Series | HP Scitex UV / Solvent | HP Scitex XP5100 5-m Industrial Production Printer (Expedio 5000) |
| HP Scitex XP2300 / XP2500 / XP5500 | HP Scitex UV / Solvent | Scitex XP2300 (3.2-m), XP2500 (3.2-m), and XP5500 (5-m) Industrial Platforms |
| HP Scitex FB7500 / FB7600 | HP Scitex FB225 / UV Inks | High-Speed Industrial Flatbed Production Systems (Nova configuration) |
| NUR Expedio / Tempo Legacy | NUR UV / Solvent | Expedio 3200/5000, Tempo Flatbed Series (replacing NUR part 09-7101) |
*Model Differentiation Note: The CW903-62866 assembly is built for Nova JA 256-based carriages. It is not compatible with Scitex platforms utilizing Spectra Galaxy (256/50 or 256/30), Spectra Polaris, or Kyocera / Xaar print engines (such as HP Scitex FB500/FB700 or HP Scitex 11000/15000/17000 series). Confirm the machine's carriage block layout and parts catalog before installation.
Terms, Warranty & Customer Protection
Condition: 100% Brand New, Genuine OEM Factory-Original Scitex Replacement Module in sealed anti-static protective packaging with factory storage fluid intact.
Manufacturer Warranty: Precision industrial piezoelectric assembly. Covered under manufacturer warranty against manufacturing and materials defects prior to ink installation. No warranty applies once solvent or UV ink has been introduced into the module, or if damage results from head crashes or electrical miswiring.
Return Policy: Precision industrial electronic component. Unopened, factory-sealed boxes are eligible for standard commercial return. Once the protective seal is broken or the assembly installed into a carriage, returns cannot be accepted due to fluid cross-contamination and driver board voltage risks.
CW903-62866
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