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EPSON Printhead Technology

EPSON Printhead  Technology
YILIJET 


Epson printheads are built on Micro Piezo inkjet technology. Ink droplets are ejected by the deformation of piezoelectric elements without heating. With MEMS precision fabrication and VSDT variable droplet technology, ink droplet size and placement can be precisely controlled for stable print quality. PrecisionCore series (I3200, S3200, etc.) support multiple ink types for industrial digital printing. Benefits include long service life and wide ink compatibility, while proper ink filtration and routine maintenance are required.


Epson printheads adopt Micro Piezo technology, based on the electro-mechanical deformation of piezoelectric crystals. Inkjet is achieved mechanically without heating ink at any stageEpson.

  1. Each nozzle unit contains a thin-film piezoelectric actuator (TFP thin-film piezo for PrecisionCore series), attached to the ink chamber.
  2. When the control board sends voltage pulses, the piezo element bends and deforms: it first expands outward to enlarge the ink chamber volume, drawing ink from the ink supply channel into the chamber. Then the voltage reverses; the piezo pushes inward to compress the chamber. The sudden pressure rise ejects an ink droplet out of the nozzle onto the substrate.
  3. By tuning the driving voltage waveform (VSDT Variable Sized Droplet Technology), a single nozzle can generate ink droplets of multiple volumes, down to 1.5 picoliters. Larger droplets fill solid areas for higher speed; tiny droplets render fine details and smooth gradients, reducing graininess爱普生中国.
  4. Meniscus control is applied to suppress residual ink vibration at the nozzle tip, preventing ink mist and satellite droplets, ensuring straight flight path and highly accurate droplet placement.
  5. MEMS microfabrication integrates dense nozzles and piezo actuators onto a silicon chip for high nozzle density. Models like I3200 and S3200 belong to the PrecisionCore platform.


 
参数
001 I1600
002 I3200
003 I3200-U1
004 I3200-A1
005 I3200-E1
006 I3200(8)-A1HD
007 I3200(8)-S1HD
008 S800
009 S800-U1
010 S3200
Brand
Epson
Epson
Epson
Epson
Epson
Epson
Epson
Epson
Epson
Epson
Technology
Piezo DOD
Piezo DOD
Piezo DOD
Piezo DOD
Piezo DOD
Piezo DOD
Piezo DOD
Piezo DOD
Piezo DOD
Piezo DOD
Architecture
PrecisionCore MicroTFP
PrecisionCore MicroTFP
MicroTFP
MicroTFP
MicroTFP
MicroTFP
MicroTFP
MicroTFP
MicroTFP
MicroTFP
Actuator
Thin-film piezo
Thin-film piezo
Thin-film piezo
Thin-film piezo
Thin-film piezo
Thin-film piezo
Thin-film piezo
Thin-film piezo
Thin-film piezo
Thin-film piezo
Nozzles
1,600
3,200
3,200
3,200
3,200
3,200
3,200
800
800
3,200 / 2,840 net
Rows
4
8
8
8
8
8
8
2/4*
2/4*
N/D
Native Resolution
600 npi
600 npi
600 npi
600 npi
600 npi
600/1200 npi
300/600/1200 npi
600 npi
600 npi
600 npi
Effective Width
33.8 mm
33.8 mm
33.8 mm
33.8 mm
33.8 mm
33.8 mm
33.8 mm
33.8 mm
33.8 mm
120.2 mm
Drop
~5–6 pL/12PL
~5–6 pL/12PL
~5–6 pL/12PL
~5–6 pL/12PL
~5–6 pL/12PL
~3–4 pL/12PL
~3–4 pL/12PL
N/D
N/D
~3–4 pL/12pL/6-18 pL
Frequency
~43.2 kHz/21kHz
~43.2 kHz/21kHz
~43.2 kHz/21kHz
~43.2 kHz/21kHz
~43.2 kHz/21kHz
~43.2 kHz/21kHz
~43.2 kHz/21kHz
N/D
N/D
24-28kHz
Recirculation
No
No
No
No
No
No
No
Depends version
Common channel
Yes
Through-Flow
No
No
No
No
No
No
No
No
No
No
Internal Heater
No
No
No
No
No
No
No
No
No
No
Ink
Aqueous / UV / Eco-Solvent
Aqueous / UV / Eco-Solvent
UV
Aqueous
Eco-Solvent
Aqueous
UV/Oil/Solvent
Various
UV/Eco-Solvent
Aqueous / UV / Eco-Solvent
Typical Viscosity
N/D
N/D
N/D
N/D
N/D
N/D
N/D
N/D
N/D
N/D
One Pass
★★★
★★★
★★★
★★★
★★★
★★★
★★★★
★★★★
★★★★
★★★★★
White Ink
★★★
★★★
★★★
★★★
★★★
★★★
★★★
★★★
★★★
★★★★
High Viscosity
★★
★★
★★
★★
★★
★★
★★
★★★
★★★
★★★
Functional Fluid
★★
★★
★★
★★
★★
★★
★★
★★★
★★★
★★★
GTF Glue
★★
★★
★★
★★
★★
★★
★★
★★
★★
★★★
Main Strength
Resolution
Resolution
UV
Aqueous
Eco-solvent
8-color
Industrial compatibility
Compact
Recirculation
Wide industrial width
Main Limitation
No recirculation
No recirculation
No recirculation
No recirculation
No recirculation
No recirculation
No recirculation
Width
Width
Higher system complexity
官方依据: Epson I-Series 官方页面确认 I1600/I3200 为 PrecisionCore MicroTFP、1,600/3,200 nozzles、33.8 mm、600 npi,
并明确写明 Ink recirculation: Not available / Internal heater: Not available。I3200(8) 支持 1200 npi 配置。
Epson S-Series 官方资料则明确:S3200 为 3,200 nozzles、120.2 mm、600 npi、common-channel recirculation;
S800 UV/Eco-Solvent 版本支持 common-channel recirculation。


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