Kyocera Printhead Knowledge
YILIJET Kyocera inkjet printheads are industrial
Bend Mode Piezo drop-on-demand (DOD) printheads, manufactured with Kyocera’s proprietary fine ceramic technology. It is also a piezo type without ink heating. Working principle: The printhead integrates a large monolithic piezoelectric ceramic plate. When voltage is applied, the piezo ceramic bends and deforms, changing the volume of the adjacent pressure chamber. Pressure waves are generated inside the chamber to push ink droplets out of nozzles. When voltage is removed, the piezo plate resets and the pressure chamber refills ink, finishing one inkjet cycleKYOCERA GR.... Key features of Kyocera:
Monolithic long piezo ceramic. A single printhead can achieve a wider print width (e.g. 108 mm), delivering excellent nozzle uniformity and stable grayscale output. Many models adopt built-in
ink recirculation, keeping ink flowing continuously at nozzle openings to greatly reduce clogging risk and maintain stable long-run continuous production. Popular models: KJ4 series (KJ4A, KJ4B, KJ4C, KJ4RR). Available in 600dpi /1200dpi. Compatible with UV, water-based, eco-solvent, white ink and varnish. Widely deployed in packaging, label, corrugated, ceramic tile, textile and high-speed OnePass single-pass web printing. Advantages: Wide print width with monolithic piezo, recirculation anti-clog design, robust industrial durability, ideal for high-speed OnePass production lines. Limitations: Higher printhead cost. Less cost-effective for small-format scanning printers compared with Epson I3200; higher requirements on driver electronics.
Kyocera uses Bend Mode Piezo drop-on-demand inkjet technology:
- The side wall of the pressure chamber is a monolithic piezoelectric ceramic plate.
- When drive voltage is applied, the piezo ceramic bends. The pressure chamber shrinks, pressure rises and generates pressure waves to eject ink droplets from the nozzle.
- When voltage is removed, the piezo ceramic rebounds. The chamber volume expands to create negative pressure, drawing ink from the ink channel into the pressure chamber.
- Repeating voltage pulses ejects droplets on demand. Multi-level grayscale driving enables control of variable droplet sizes.
- Recirculation models: Ink flows continuously in front of nozzles to carry away air bubbles and particles, minimizing clogging for long-hour non-stop industrial production.
| PART 02 — Kyocera 011–020 |
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| 参数 |
011 KJ4B-0300 |
012 KJ4B-EX600 |
013 KJ4B-EX600-RC |
014 KJ4B-1200 |
015 KJ4B-EX1200 |
016 KJ4B-EX1200-RC |
017 KJ4A |
018 KJ4B |
019 KJ4B-YH |
020 KJ4A-TA |
| Brand |
Kyocera |
Kyocera |
Kyocera |
Kyocera |
Kyocera |
Kyocera |
Kyocera |
Kyocera |
Kyocera |
Kyocera |
| Architecture |
Ceramic Piezo |
Ceramic Piezo |
Ceramic Piezo |
Ceramic Piezo |
Ceramic Piezo |
Ceramic Piezo |
Ceramic Piezo |
Ceramic Piezo |
Ceramic Piezo |
Ceramic Piezo |
| Actuator |
Monolithic PZT |
Monolithic PZT |
Monolithic PZT |
Monolithic PZT |
Monolithic PZT |
Monolithic PZT |
PZT |
PZT |
PZT |
PZT |
| Nozzles |
~2,656 |
2,656 |
2,656 / 2,560 active |
~5,312 |
5,116 |
5,116 |
~2,656 |
~2,656 |
N/D |
N/D |
| Resolution |
300 dpi class |
600 dpi |
600 dpi |
1200 dpi |
1200 dpi |
1200 dpi |
600 dpi class |
600 dpi |
N/D |
N/D |
| Effective Width |
~108 mm |
108.3 mm |
108.3 mm |
~112 mm |
108.27 mm |
108.27 mm |
~108 mm |
~108 mm |
N/D |
N/D |
| Drop |
N/D |
~16 pL |
14 pL @40k |
N/D |
~4 pL |
4 pL |
N/D |
N/D |
N/D |
N/D |
| Frequency |
~30 kHz |
30 kHz |
40 kHz |
~60 kHz |
80 kHz |
80 kHz |
N/D |
N/D |
N/D |
N/D |
| Recirculation |
No |
No |
Yes |
No |
Yes/depends version |
Yes |
N/D |
N/D |
N/D |
N/D |
| Through-Flow |
No |
No |
No |
No |
No |
No |
No |
No |
N/D |
N/D |
| Cooling |
N/D |
N/D |
Water cooling |
N/D |
N/D |
N/D |
N/D |
N/D |
N/D |
N/D |
| Ink |
Industrial aqueous |
Aqueous |
Aqueous |
Industrial |
Industrial |
Industrial |
Industrial |
Industrial |
N/D |
N/D |
| One Pass |
★★★★★ |
★★★★★ |
★★★★★ |
★★★★★ |
★★★★★ |
★★★★★ |
★★★★★ |
★★★★★ |
★★★★ |
★★★★ |
| White Ink |
★★★★ |
★★★★ |
★★★★★ |
★★★★ |
★★★★ |
★★★★★ |
★★★★ |
★★★★ |
★★★★ |
★★★★ |
| High Viscosity |
★★★ |
★★★★ |
★★★★ |
★★★★ |
★★★★ |
★★★★★ |
★★★★ |
★★★★ |
★★★★ |
★★★★ |
| Functional Fluid |
★★★ |
★★★★ |
★★★★★ |
★★★★ |
★★★★ |
★★★★★ |
★★★★ |
★★★★ |
★★★★ |
★★★★ |
| GTF Glue |
★★ |
★★★ |
★★★★ |
★★★ |
★★★★ |
★★★★ |
★★★ |
★★★ |
★★★ |
★★★ |
| Key Advantage |
Industrial speed |
600 dpi + speed |
Recirculation |
1200 dpi |
Ultra-high speed |
1200 dpi + circulation |
Mature platform |
Industrial reliability |
N/D |
N/D |
| Key Limitation |
Lower resolution |
No RC |
High system complexity |
Small drops |
High control demand |
Cost |
Public data limited |
Public data limited |
Data verification needed |
Data verification needed |
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| EX600-RC 是这 60 个里必须重点保留的型号 |
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| Kyocera 官方明确给出： |
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| 108.3 mm effective print width |
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| 600 dpi |
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| 40 kHz |
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| 14 pL @ 40 kHz |
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| 18 pL @ 30 kHz |
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| 24 pL @ 20 kHz |
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更重要的是，它在喷嘴附近进行 ink recirculation，用来减少 nozzle drying、温度不均和 pigment sedimentation。
官方还特别强调 stainless-steel lamination 的 robust flow-channel structure。 |
