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Seiko RC1536 2-Color Dual Channel Printhead
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$2,600.00
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Compact dual-channel continuous recirculation printhead featuring 2 x 768 nozzles for simultaneous two-color printing or dual-fluid jetting from a single assembly.
OEM Replacement Component
Seiko Instruments RC1536 2-Color Dual-Channel Inkjet Printhead
OEM Part Number: Seiko RC1536-2C / IRH3023U-XXXX Series | Continuous Through-Flow Recirculation Greyscale Piezoelectric Jetting Assembly
Product Overview
The Seiko Instruments RC1536 2-Color Dual-Channel Printhead is an authentic original equipment manufacturer (OEM) piezoelectric drop-on-demand (DoD) industrial inkjet printhead engineered for high-throughput single-pass industrial printing, ceramic tile decoration, corrugated packaging, textiles, and wide-format UV flatbed graphics. Housing an array of 1,536 active nozzles arranged across an expansive 108.3 mm active print swath, this advanced dual-channel configuration divides the array into two isolated 768-nozzle fluid paths (at 180 DPI per channel, or 360 DPI in single-color combined mode), enabling simultaneous jetting of two distinct colors or chemical fluids from a single printhead body.
Engineered with Seiko's proprietary full-nozzle recirculating ink architecture (through-flow technology), the RC1536 circulates fluid continuously past the back of every individual nozzle chamber at high flow rates. This continuous internal circulation prevents pigment sedimentation, purges micro-bubbles, and prevents nozzle dry-out even with heavily pigmented white inks, ceramic glazes, metallic effect fluids, and high-density UV-curable formulations. Multi-drop greyscale operation delivers droplet modulations ranging from fine highlight drops up to saturated solid fills, while internal dual-circuit thermal regulation and high-grade stainless steel nozzle shielding guarantee round-the-clock reliability in demanding industrial production environments.
Part Information
| Product Name | Seiko Instruments RC1536 2-Color Dual-Channel Printhead |
| OEM Manufacturer | Seiko Instruments Inc. (SII Printek) |
| OEM Part Number / Series | Seiko RC1536-2C / IRH3023U-Series (Dual Channel) |
| Component Classification | Industrial Recirculating Greyscale Drop-on-Demand (DoD) Piezoelectric Line Head |
| Channel Architecture | Dual-Channel Independent Fluidics (2 x 768 Nozzles) with Continuous Through-Flow Recirculation |
| Nozzle Plate Protection | Chemically Passivated Reinforced Stainless Steel Faceplate Guard |
| Manufacturing Standard | Seiko Instruments Factory Certified (Japan) |
Technical Specifications
| Printhead Technology | Piezoelectric Drop-on-Demand (DoD) Multi-Drop Greyscale with Full Recirculation |
| Total Number of Nozzles | 1,536 active addressable nozzles |
| Channel Configuration | 2 independent fluid channels (768 nozzles per channel) |
| Native Resolution / Pitch | 180 DPI per channel / 360 DPI total interleaved print pitch |
| Active Print Swath Width | 108.3 mm (4.26 inches) continuous swath |
| Native Base Drop Volume | Calibrated variant dependent (typically 13 pL, 25 pL, or 35 pL native class) |
| Greyscale Drop Range | Up to 8 greyscale levels (multi-pulse merging scaling up to 100+ pL for heavy laydown) |
| Maximum Operating Frequency | Up to 37 kHz binary; approx. 20–25 kHz multi-drop greyscale (waveform dependent) |
| Operating Viscosity Range | 8 to 20 mPa·s (cP) at operating jetting temperature |
| Recirculation Flow Rate | Dedicated continuous through-flow past nozzle backplate (adjustable per fluid circuit) |
| Temperature Regulation | Up to 50°C (122°F) via integrated internal heaters and closed-loop thermistors |
| Fluid Compatibility | UV-curable inks, ceramic inorganic inks, solvent/eco-solvent, oil-based fluids, specialty functional coatings |
| Fluid & Electrical Interfaces | Dual-circuit 4-port fluid manifold (Inlet/Outlet for Channel A & B); high-density multi-pin Flexible Flat Cables (FFC) |
Key Features & Operational Advantages
- Dual-Channel 2-Color Jetting Versatility: Houses two completely isolated ink channels (768 nozzles each), allowing a single printhead to jet two distinct colors (e.g., Cyan + Magenta, or White + Varnish), significantly reducing carriage footprint and alignment complexity.
- Full-Nozzle Continuous Through-Flow Recirculation: Continuous ink flow behind the nozzle orifices prevents pigment settling, maintains consistent channel temperature, eliminates stagnation crusting, and automatically purges micro-bubbles.
- Expansive 108.3 mm Single-Pass Swath: The wide print swath minimizes the number of printheads required to assemble continuous industrial single-pass arrays, maximizing linear line speeds in ceramic decoration and packaging lines.
- Heavy-Duty Stainless Steel Guard Plate: Chemically bonded metallic nozzle shield withstands media strikes, abrasive wiping cycles, and corrosive industrial flushes.
CRITICAL TECHNICAL & OPERATIONAL ADVISORY
1. Mandatory Recirculation Differential Calibration: The RC1536 relies on a continuous differential pressure system between its ink inlet and outlet ports to drive nozzle through-flow while simultaneously maintaining negative meniscus vacuum at the orifice face. Technicians must calibrate the delivery and return sub-tank pressure pumps accurately; improper pressure differential will cause either immediate nozzle weeping or severe starvation during high-frequency firing.
2. Dual-Channel Fluid Isolation Integrity: When operating the printhead with two distinct fluids or colors, ensure both supply and return fluid loops are completely segregated and plumbed to the correct matching ports on the 4-port manifold. Cross-connecting inlet and return lines between Channel A and Channel B will result in catastrophic internal cross-contamination.
3. Mandatory ESD Grounding & Power Sequence: Shear-mode PZT actuators and multi-channel high-speed drive ICs are Class 1 ESD-sensitive components. Technicians must wear a grounded ESD wrist strap and work on a static-dissipative work surface. Never connect or disconnect FFC data cables while the carriage board or main power supply is energized; hot-plugging will instantaneously destroy driver IC gates.
4. Storage Fluid Purge Protocol: Factory-shipped printheads contain a protective storage fluid. Flush both channels thoroughly using filtered, compatible flush fluid (filtered to 0.2 microns) before charging with production inks. Clean the stainless steel faceplate solely using dedicated lint-free cleanroom polyurethane swabs soaked in approved flush solvent; never use dry wipes or metallic tools.
Compatible Models & Systems
| Printer Manufacturer | Ink Chemistry | Supported Platforms |
|---|---|---|
| EFI Cretaprint / Projecta | Ceramic Glaze / Soluble Salts | Single-Pass Industrial Ceramic Tile Printing Lines |
| TecnoFerrari / Hope Digital | Inorganic Pigments / UV | Industrial Single-Pass Tile & Building Material Systems |
| Docan Digital / Handtop | UV-Curable / Hybrid | High-Speed UV Flatbed & Single-Pass Packaging Bars |
| Industrial OEM Custom Presses | UV / Oil / Solvent | Corrugated Board Coders, Narrow-Web Label Systems |
*Model Differentiation Note: This printhead is dedicated strictly to the Seiko RC1536 2-Color Dual-Channel recirculating configuration. It is distinct from single-channel RC1536 variants, non-recirculating Seiko 1024GS / 1024HG heads, and legacy 508GS/510 models. Always confirm fluid porting, voltage rank, and recirculation subsystem compatibility prior to unsealing the component.
Terms, Warranty & Customer Protection
Condition: 100% Brand New, Unopened Factory Original Genuine OEM Component in Factory-Sealed Anti-Static Packaging with Factory Storage Fluid Intact.
Warranty Scope: Covered by standard manufacturer DOA replacement protection against electrical continuity failures and physical manufacturing defects upon initial arrival. Operating longevity and channel firing integrity are governed by ink filtration quality, degassing efficiency, differential recirculation pressure stability, and routine maintenance compliance.
Return Policy: Precision industrial electronic consumable. Due to sensitivity to electrostatic discharge, complex 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 model and recirculation subsystem specifications with technical support prior to unsealing.
RC1536-2C
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