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}Kyocera Water Printhead KJ4B-QL-For MS Printers
Brand: Kyocera
Tax excluded. Shipping calculated at checkout
Availability: In stock

The Kyocera KJ4B-QA / KJ4B-QL is a genuine original water-based inkjet printhead for high-speed direct-to-textile and aqueous wide-format printing. This listing is the MS version — configured specifically for MS Italy JP6, JP4EVO, MCS Eagle, and Xerox Rialto 900 printers, and supplied with the MS-specific head cable required for correct installation. With 2,656 nozzles at 600 dpi, a 5–18 pl variable drop range, 30 kHz frequency, and integrated heater and thermistor, it delivers high-throughput aqueous output in demanding production environments. Every KJ4B-QA / KJ4B-QL we sell at Digiprint USA is 100% genuine original Kyocera Japan.
Version note: This listing ships as the Kyocera KJ4B-QA or KJ4B-QL MS version (the QL is the current replacement for the QA — both are identical in specifications and application). The MS version is not interchangeable with the Standard or EFI Reggiani versions — each has a different head cable. Select the correct version for your printer before ordering.
Technical Specifications
| Specification | Detail |
|---|---|
| Model | Kyocera KJ4B-QA / KJ4B-QL (MS version — includes MS head cable) |
| Total nozzles | 2,656 (single colour) |
| Nozzle pitch | 0.042 mm |
| Standard resolution | 600 × 600 dpi |
| Print swathe width | 108.25 mm |
| Drop volume | 5, 7, 12, and 18 pl (variable) |
| Max drive frequency | 30 kHz |
| Max print speed | 75 m/min (@ 600 dpi) |
| Ink compatibility | Water-based / aqueous inks |
| Optimum ink viscosity | 5.0 – 6.0 mPas |
| Temperature control | Integrated reservoir heater and thermistor |
| Internal filters | Yes — prevents particles from reaching nozzle plate |
| Input voltage | 3.3V (logic) / 26V (drive) |
| Dimensions | 200 × 25 × 59.3 mm |
| Dry weight | 420 g |
| Included | Head + MS-specific head cable |
| Country of origin | Japan |
| Warranty | Manufacturer warranty included |
Three Versions — Select the Correct One for Your Printer
| Version | Cable Included | For Which Printers |
|---|---|---|
| Standard | No dedicated cable | Aeoon Kyo, Atexco, and most non-MS/non-Reggiani DTF/DTG printers |
| MS version (this listing) | MS-specific head cable included | MS Italy JP6, JP4EVO, MCS Eagle, Xerox Rialto 900 |
| EFI Reggiani version | EFI Reggiani-specific head cable included | EFI Reggiani ReNOIR TOP, Compact 180, ReNOIR 240 |
The three versions are electrically different due to their head cables — installing the wrong version in your printer will result in connection failure or head damage. Always confirm which version your printer requires before ordering. Contact our team if unsure.
Compatible Printers — MS Version
This MS version printhead is compatible with:
Contact our team with your printer make, model, and firmware version to confirm MS version compatibility before ordering.
Warranty Notice
Due to the sensitive nature of industrial inkjet printhead components, we cannot accept returns, exchanges, or refunds once the printhead has been installed. All sales are final. Contact our team to confirm the correct version for your printer before ordering.
Why Buy from Digiprint USA
• 100% genuine original Kyocera KJ4B-QA / KJ4B-QL MS version — not compatible, not refurbished
• Includes the MS-specific head cable — ready for installation in MS Italy, MCS Eagle, Xerox Rialto 900, JP4EVO
• In stock in Doral, Miami FL — same day shipping before 2PM EST
• Ideal for Latin American MS Italy and MCS Eagle textile print shops using Miami freight forwarders
• Free technical support — we confirm MS vs Standard vs Reggiani version for your printer before you order
View our full range of genuine Kyocera industrial printheads stocked by Digiprint USA, including the KJ4A-TA UV and KJ4A-0300.
Frequently Asked Questions
What is the difference between KJ4B-QA and KJ4B-QL?
The KJ4B-QL is the current Kyocera designation replacing the older KJ4B-QA. Both have identical specifications — 2,656 nozzles, 600 dpi, 5–18 pl drop range, 30 kHz, 75 m/min, aqueous inks. The QL is a minor revision update; if your printer's service documentation references the KJ4B-QA, the KJ4B-QL is the correct current replacement.
Why does the version matter — can't I just use the Standard version?
No — the three versions (Standard, MS, EFI Reggiani) differ in the head cable supplied with the printhead. The cable pinout and connector are specific to each printer brand's carriage wiring. Installing the wrong version means the cable will not connect correctly to your printer's carriage board, resulting in head recognition errors or electrical damage.
Is the Xerox Rialto 900 compatible with the MS version?
Yes — the Xerox Rialto 900 is listed as compatible with the KJ4B-QA / KJ4B-QL MS version. Contact our team to confirm your specific Rialto 900 configuration before ordering.
Do you ship Kyocera KJ4B water printheads to Latin America?
Yes — same day shipping from our Doral, Miami FL warehouse. Our Miami location is ideal for Latin American MS Italy, MCS Eagle, and Xerox Rialto textile print shops using freight forwarders in the Doral area.
