
RNJet H4 Thermal Inkjet Printer
A thermal inkjet (TIJ) coder built on RNJet's expandable multi-head controller platform — the same controller that scales up to 24 heads — so your line can grow without replacing hardware.
One controller, ready to scale
The RNJet H4 runs on the same expandable multi-head controller platform as the 24-head RNJet H24 — "One controller, up to 24 print heads." It's the entry point for manufacturers who want to start with a single head today and scale up later without swapping out the controller. Its 7" touchscreen and RN Software platform print static text, auto date & time, batch numbers, QR codes and GS1 DataMatrix codes without daily maintenance.
Max print speed (150 dpi)
Max print height
Printing distance
Max. non-stop print length
Prints virtually any data
Static text, auto date & time, Julian date, Jalali date, auto manufacture date, auto expiry date, batch number, logo, image, QR code, serial number, auto shift codes, GS1 DataMatrix, UDI, database fields, counter and external text (weight & other info from scale and barcode scanner).
Ready for a quote on the RNJet H4?
Tell us your product and line speed — we'll recommend the right configuration.
RNJet H4 Full Specifications
| Standard Features | |
|---|---|
| Display | 7" touchscreen LCD controller |
| No. of Print Heads | 1 (expandable up to 24 on this controller platform) |
| Printing Speed | Up to 180 m/min (150 dpi) or up to 90 m/min (300 dpi) |
| Max. Print Height | Up to 12.7 mm |
| Printing Distance | Up to 8 mm |
| Printing Orientation | Side printing, downwards, at an angle |
| Min. Drying Time – Non-Porous | 1 to 3 seconds, depending on material |
| Min. Drying Time – Porous | N/A |
| Max. Printing Length (Non-Stop) | Up to 2200 mm |
| Warranty | 1 year* |
| Ink & Operating Conditions | |
| Ink System | Cartridge |
| Ink Management | Ink calculator, ink level indicator on controller & print driver, output for optional ink beacon alarm |
| Ink Colors | Red, blue, black, pigmented white and yellow, USDA-approved FDG ink, as well as UV black and UV white |
| Ink Types | Variety of solvent-based, water-based, UV and food-grade inks |
| Operating Conditions | Temp: 5°C – 45°C · Relative Humidity: 20% – 80% |
*Terms and conditions apply. Check our Refund and Return Policy for full details.
What the RNJet H4 prints on
A thermal inkjet coder built for porous and non-porous substrates across food, beverage, pharmaceutical and packaging lines.
RNJet H Series in action
Actual production samples printed with RNJet H Series thermal inkjet printers — the same print engine used in the RNJet H4 — across food, beverage, pharmaceutical and packaging applications.








Start small. Scale on the same controller.
Expandable Platform
Start with one head and scale up to 24 on the same controller — no hardware swap required.
Food-Grade Ink Ready
USDA-approved FDG ink available for direct food packaging applications.
GS1 DataMatrix & UDI
Full track & trace support for serialized, compliance-ready coding.
Cartridge Simplicity
Clean, mess-free cartridge ink system with built-in ink level monitoring.
The right cartridge ink for your substrate
The RNJet H4 runs on cartridge-based inks across four formulations — solvent-based, water-based, UV and food-grade — so you can match the ink to your material and application.
Solvent-Based
Fast-drying, high-adhesion ink built for non-porous surfaces like plastic, metal and coated packaging.
Water-Based
Low-odor, eco-conscious ink formulated for porous substrates such as cardboard, paper and fiber.
UV-Curable
Cures instantly under UV light for a durable, smudge-resistant mark on demanding surfaces.
Food-Grade (FDG)
USDA-approved ink safe for direct contact applications on food and egg packaging.
Ink Colors Available
Red, blue, black, pigmented white and yellow, USDA-approved FDG ink, as well as UV black and UV white.
Ink Management
Built-in ink calculator, ink level indicator on the controller and print driver, plus an output for an optional ink beacon alarm — so you always know when a cartridge needs replacing.
More from the RNJet TIJ & Piezo lineup
RNJet H4 Frequently Asked Questions
Both run one print head, but the RNJet H4 uses RNJet's expandable multi-head controller platform — the same controller used by the 24-head RNJet H24 — so your line can scale up later without replacing hardware. The RNJet H4 has a maximum non-stop print length of 2200 mm, versus 5500 mm on the RNJet H1.
Yes. The RNJet H4 runs on the same controller platform as the RNJet H24, which supports up to 24 print heads from a single controller.
Cartridge-based ink in red, blue, black, pigmented white and yellow, USDA-approved FDG ink, and UV black and UV white — available in solvent-based, water-based, UV and food-grade formulations.
A 1-year manufacturer warranty.* Terms and conditions apply — see our Refund and Return Policy.
Get pricing on the RNJet H4
Share a few details about your product and production line, and a RNJet USA specialist will follow up with a tailored recommendation and quote.
- Free line assessment & ink recommendation
- U.S.-based support from Detroit, Michigan
- 1-year manufacturer warranty*
Request a Quote — RNJet H4
Fill out the form and our team will respond as soon as possible.



