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Genuine Memjet DuraFlex A4 4-Color Printhead (222.8 mm)
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$950.00
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Integrated 4-color page-wide thermal inkjet printhead delivering 2.1 pL droplets across a 222.8 mm swath for aqueous pigment labeling and packaging engines.
OEM Replacement Component
Genuine Memjet DuraFlex A4 4-Color Single-Die Printhead (222.8 mm)
OEM Part Number: Memjet DuraFlex A4 Module / 4-Channel CMYK | Monolithic Silicon MEMS Thermal Inkjet Single-Pass Print Engine
Product Overview
The Genuine Memjet DuraFlex A4 4-Color Printhead (222.8 mm) is an authentic original equipment manufacturer thermal drop-on-demand (DoD) single-pass inkjet print engine designed specifically for high-speed desktop label printers, commercial envelope overprinters, tabletop packaging presses, and light-production web presses. Built on Memjet’s proprietary monolithic silicon MEMS architecture, the DuraFlex A4 integrates an active print width of 222.8 mm (8.77 inches) housing 28,160 active nozzles onto a single uninterrupted die, delivering full-color single-pass printing across standard letter/A4 media paths without mechanical stitching lines or seam calibration artifacts.
Delivering full process color from a compact modular chassis, the DuraFlex A4 head features 4 independent fluid channels (Cyan, Magenta, Yellow, Black) with dual-row nozzle redundancy per color channel (7,040 nozzles per channel across 8 total rows). Engineered exclusively for light-fast, water-fast aqueous pigment inks, the module integrates complete fluid recirculation directly behind every thermal firing chamber. This continuous micro-fluidic sweep suppresses pigment settlement, expels trapped micro-bubbles, and extends nozzle decap performance during standby. Discharging 2.1 pL native micro-droplets at native physical resolutions up to 1600 × 1600 DPI and web speeds up to 45.7 m/min (150 ft/min), it provides a low-maintenance, cost-effective digital engine for commercial tabletop and benchtop converting systems.
Part Information
| Product Name | Genuine Memjet DuraFlex A4 4-Color Industrial Printhead (222.8 mm) |
| OEM Manufacturer | Memjet Technology Ltd. |
| OEM Platform / Format | Memjet DuraFlex A4 Series / Monolithic 4-Color Single-Die Module |
| Component Classification | Compact 4-Channel Thermal Drop-on-Demand (DoD) Single-Pass Printhead |
| Silicon MEMS Architecture | Monolithic Continuous Silicon Die (Zero physical die stitching seams) |
| Fluid Recirculation Dynamic | Continuous Thermal Chamber Through-Flow Micro-Recirculation (Supply & Return) |
| Manufacturing Standard | Memjet OEM Factory Certified Cleanroom Packaging |
Technical Specifications
| Printhead Technology | Thermal Drop-on-Demand (DoD) Silicon MEMS with Full Chamber Recirculation |
| Active Print Swath Width | 222.8 mm (8.77 inches) single-pass A4 / letter width |
| Total Number of Active Nozzles | 28,160 nozzles (7,040 nozzles per color channel across 8 total rows) |
| Color Channels | 4 Channels (Cyan, Magenta, Yellow, Black or custom 4-fluid setups) |
| Native Physical Resolution | 1600 DPI native channel pitch (up to 1600 × 1600 DPI print modes) |
| Calibrated Drop Volume | 2.1 picoliters (pL) native micro-droplet |
| Linear Web Speed Capability | Up to 45.7 m/min (150 ft/min) at 1600 × 790 DPI; up to 22.8 m/min at 1600 × 1600 DPI |
| Operating Viscosity Range | 2.0 to 5.0 mPa·s (cP) at operating temperature |
| Surface Tension Operating Range | 28 to 36 mN/m (optimized for aqueous meniscus stabilization) |
| Thermal Regulation | Multi-zone onboard silicon thermal sensors with integrated pulse warm-up management |
| Fluid Compatibility | Memjet DuraFlex certified aqueous pigment inks (NOT compatible with solvent, UV, or oil inks) |
| Fluid & Electrical Interfaces | 8-port fluid manifold (Supply & Return per color channel); high-speed multi-gigabit differential interface |
Key Features & Operational Advantages
- Compact Monolithic 222.8 mm Silicon Die: Spanning the standard 8.5-inch/A4 web on a single continuous silicon slice, DuraFlex A4 eliminates multi-head mechanical alignment, color-to-color registration skew, and stitch-line calibration artifacts.
- Full CMYK Process in One Module: Firing 4 process colors simultaneously from a single printhead, this architecture minimizes machine footprint, reduces carriage mass, and simplifies integration into compact tabletop label and packaging presses.
- Dual-Row Redundant Nozzles (2x Redundancy): Each color channel is backed by dual interleaved rows (7,040 nozzles/color), allowing automated software channel substitution to suppress white-line streaks if individual nozzles clog during production runs.
- Continuous Through-Chamber Recirculation: Micro-recirculation keeps pigment particles in constant motion across thermal firing chambers, preventing sediment dropouts, minimizing purge waste, and maintaining instant jet readiness after overnight standstills.
CRITICAL TECHNICAL & OPERATIONAL ADVISORY
1. Recirculation Pressure Differential & Meniscus Stability: The DuraFlex A4 module requires calibrated differential pressure across supply and return ink ports while preserving a strict negative meniscus pressure (-1.5 to -3.0 mbar) at the silicon faceplate. Improper differential balance will trigger ink weeping, cross-color bleed in the internal channels, or de-priming air ingestion.
2. Fluid Chemistry Exclusivity: The DuraFlex silicon array is manufactured exclusively for certified Memjet aqueous pigment inks. Under no circumstances should the module be filled or flushed with solvent, eco-solvent, oil-based, or UV-curable chemistries. Exposure to non-aqueous carriers will dissolve silicon bonding epoxies and permanently destroy the thermal heater stack.
3. Mandatory ESD Grounding & Power Sequencing: Silicon MEMS heater arrays and high-speed CMOS driver logic are Class 1 ESD-sensitive components. Technicians must wear a grounded ESD wrist strap and work on a static-dissipative work mat. Always ensure the printer is fully powered off and power supply rails are discharged before mating or disconnecting high-density data and power interconnects.
4. Wet Capping & Microfiber Maintenance: The silicon nozzle faceplate must never be wiped with dry cloths, foam swabs, or paper towels. Automated maintenance systems must use cleanroom-grade wet-wiping microfiber rollers charged with genuine Memjet maintenance fluid. Ensure the capping station maintains an airtight, high-humidity seal during standby to prevent pigment crusting at the micro-nozzle orifices.
Compatible Models & Systems
| System Manufacturer | Ink Chemistry | Supported Platforms |
|---|---|---|
| Afinia Label | Aqueous Pigment | Afinia L901, L901 Plus Industrial Label Printers |
| AstroNova / TrojanLabel | Aqueous Pigment | Trojan T2-C Mini, Tabletop Label & Packaging Presses |
| Colordyne Technologies | Aqueous Pigment | Colordyne 2800 Series AP Tabletop Label & Tag Engines |
| Industrial Label & Envelope OEMs | Aqueous Pigment | High-Speed Commercial Envelope Presses & Direct-to-Pouch Systems |
*Platform Differentiation Note: The DuraFlex A4 module features a continuous 222.8 mm silicon die configured for 4-channel CMYK printing. While it shares the same 222.8 mm print width as the Memjet DuraLink printhead, DuraLink is a single-color, multi-module modular print bar, whereas DuraFlex A4 houses all 4 process colors on one die. It is also physically narrower than the DuraFlex A3+ (324.4 mm) and not interchangeable with legacy dye-based VersaPass (216 mm) units. Verify engine controller firmware and bracket spacing prior to installation.
Terms, Warranty & Customer Protection
Condition: 100% Brand New, Unopened Factory Original Genuine OEM Component in Factory-Sealed Static-Shielding Packaging with Factory Storage Preservation Fluid Intact.
Warranty Scope: Covered by standard manufacturer DOA replacement protection against electrical continuity failures, open thermal heater elements, and physical manufacturing defects upon initial arrival. Operating lifespan and nozzle firing health are governed by ink degassing quality, certified aqueous pigment ink usage, closed-loop pressure stability, and adherence to factory maintenance protocols.
Return Policy: Precision industrial electronic consumable. Due to sensitivity to electrostatic discharge, internal fluid priming requirements, and cross-contamination risks once unsealed, components that have been removed from their static-shielding bag, filled with ink, flushed with solvents, or energized cannot be returned or restocked under standard commercial terms. Please confirm your printer engine model and fluid system compatibility with technical support prior to unsealing.
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