Kyocera KJ4B-QA (Reggiani / EFI Version) Original Water-Based Inkjet Printhead 600 DPI
- Write a review
$1,689.00
Original Kyocera KJ4B-QA Reggiani/EFI-specific aqueous piezo inkjet printhead configured for EFI Reggiani Renoir and NEXT series printers. Features native 600 × 600 dpi resolution, 2,656 nozzles across a 108.25 mm effective print width, variable drop volumes of 5–18 pL, maximum drive frequency of 30 kHz and print speeds up to 75 m/min. Supplied as the Reggiani hardware variant (typically with matching head cable) for compatibility with ReNOIR and related systems.
The Kyocera KJ4B-QA (Reggiani / EFI Version) is an original genuine industrial piezo inkjet printhead from the KJ4B series, specifically configured for EFI Reggiani printers. It is intended for use on Reggiani ReNOIR TOP, ReNOIR 240, ReNOIR 340, Compact 180 and related NEXT platforms. This hardware variant differs from the Standard and MS versions in electrical interface and cable configuration; the variants are not interchangeable.
The printhead delivers native 600 × 600 dpi resolution across an effective print width of 108.25 mm. It utilises 2,656 nozzles (approximately 2,558 active within the effective print area) arranged at a nozzle pitch of 0.042 mm. Maximum drive frequency is 30 kHz, supporting a maximum print speed of 75 m/min. Drop volumes are selectable at 5 pL, 7 pL, 12 pL and 18 pL (18 pL limited to lower drive frequencies). Recommended ink viscosity range is 5.0–6.0 mPa·s. Typical physical dimensions are 200 × 25 × 59.3 mm (W × D × H) with a dry weight of approximately 420 g. The head incorporates internal filters and an integrated reservoir heater with thermistor. No nozzle recirculation is included.
Critical Variant Warning
Three primary hardware variants of the KJ4B-QA exist: Standard, MS, and EFI/Reggiani. This listing is exclusively for the Reggiani/EFI-specific version. Installing a non-Reggiani variant on an EFI Reggiani printer (or vice versa) will result in incompatibility. Always confirm the exact variant required by your machine (including serial number where relevant, e.g., ReNOIR 240/340 starting with 812 or 813) before ordering. The Reggiani version is commonly supplied with or requires the matching Reggiani head cable. Replacement of the associated flexible cables is strongly recommended when installing a new printhead.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Kyocera |
| Model / Variant | KJ4B-QA (Reggiani / EFI Version) |
| Technology | Piezoelectric |
| Ink Type | Aqueous / Water-based |
| Native Resolution | 600 × 600 dpi |
| Total Nozzles | 2,656 |
| Active Nozzles (approx.) | 2,558 |
| Nozzle Pitch | 0.042 mm |
| Effective Print Width | 108.25 mm |
| Maximum Drive Frequency | 30 kHz |
| Maximum Print Speed | 75 m/min |
| Drop Volume | 5 / 7 / 12 / 18 pL (18 pL limited to lower frequencies) |
| Recommended Ink Viscosity | 5.0–6.0 mPa·s |
| Temperature Control | Integrated reservoir heater + thermistor |
| Internal Filters | Yes |
| Nozzle Recirculation | No |
| Dimensions (W × D × H) | 200 × 25 × 59.3 mm |
| Dry Weight | Approx. 420 g |
| Country of Origin | Japan |
Confirmed Compatibility (Reggiani / EFI Version)
- EFI Reggiani ReNOIR TOP
- Reggiani ReNOIR 240 (serial numbers starting with 812 or 813)
- Reggiani ReNOIR 340 (serial numbers starting with 812 or 813)
- Reggiani Compact 180
- Selected related NEXT series systems – always verify exact model and serial number
Full system-level compatibility (head interface board, waveform, drive voltage, cables, firmware and ink delivery system) must still be confirmed with the printer manufacturer or qualified technician prior to installation. Some machines use Kyocera original waveforms (e.g., Sakata); others may use Reggiani-specific waveforms depending on the ink system.
Operational Recommendations
- Always handle the printhead while wearing a grounded anti-static ESD wrist strap.
- Power down the complete system before connecting or disconnecting any flexible cables.
- Thoroughly flush the ink channels with an approved cleaning solution before first use or after prolonged storage.
- Use only aqueous inks within the recommended viscosity range of 5.0–6.0 mPa·s.
- Use the correct Reggiani-specific head cable supplied or recommended for this variant.
Warranty
Store Warranty: 30 Business Days After Delivery. Eligible claims for damage on arrival, defective product, non-functioning product, incorrect item or missing components require: (1) a continuous uninterrupted unboxing video, (2) clear evidence of the shipping package and shipping label, (3) clear evidence of the product condition, and (4) for functionality claims, a video showing initial installation and operation performed by a qualified technician. All claims remain subject to verification. When approved, a 100% money-back refund without deduction is provided. Manufacturer Warranty: Not publicly specified by Kyocera in available documentation. Warranty expressly excludes defects related to the use of non-original inks, clogged/missing/deviated nozzles, misuse, abuse, neglect, improper storage, lack of prescribed maintenance, operation for unintended purposes, third-party applications/software/parts/components or bulk ink systems, and purely cosmetic issues.
This is a genuine original Kyocera OEM printhead in the Reggiani/EFI-specific hardware configuration. Proper variant selection, system integration, approved aqueous inks and correct handling procedures are essential for optimal performance and service life.
KJ4B-QA (Reggiani / EFI Version)
361 Items
