
RNJet T4 Quad-Head Thermal Inkjet Batch Coder
Four independent, non-stitched print heads from one controller — each printing up to 25.4 mm (1 inch) — for four codes or four lanes at once, with zero maintenance.
Four heads. Four codes. One controller.
The RNJet T4 runs 4 independent, non-stitched print heads from a single 7" touchscreen controller — each printing its own code up to 25.4 mm (1 inch) tall. Where the RNJet T4 ST stitches its heads into one tall code, the T4 keeps them independent, ideal for coding 4 separate lanes or 4 different codes per pack.
Independent print heads
Max print speed (300 dpi)
Max print height, each head
Max. non-stop print length
Built for batch coding
Static text, dates, lot numbers, batch numbers and 2D codes (QR and DataMatrix) — printed independently from each of the 4 heads.
Ready for a quote on the RNJet T4?
Tell us your product and line speed — we'll recommend the right configuration.
RNJet T4 Full Specifications
| Standard Features | |
|---|---|
| Display | 7" touchscreen LCD controller |
| No. of Print Heads | 4 (non-stitched) |
| Printing Speed | Up to 90 m/min (300 dpi) |
| Max. Print Height | Up to 25.4 mm each |
| Printing Distance | Up to 8 mm |
| Printing Orientation | Side printing, downwards |
| 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 1100 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 | Black |
| Ink Types | Solvent-based, water-based |
| 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 T4 prints on
A 4-head batch coder for lines that need multiple independent codes or lanes coded at once.
RNJet T Series in action
Actual production samples printed with RNJet TIJ printers — the RNJet T4 batch coder and the RNJet H1, sharing the same cartridge-based print engine.








Four independent heads, one controller
4 Independent Lanes
Code 4 separate lanes or 4 different codes per pack from one controller.
No Maintenance
Cartridge-based ink system — clean, simple, ready to print.
2D Code Ready
Print QR codes and DataMatrix alongside lot numbers and dates.
Cartridge Simplicity
Built-in ink level monitoring and ink calculator on the controller.
Black cartridge ink, two formulations
The RNJet T4 runs on black cartridge ink available in solvent-based and water-based formulations — matched to your substrate.
Solvent-Based
Fast-drying, high-adhesion black ink built for non-porous surfaces like plastic, metal and coated packaging.
Water-Based
Low-odor, eco-conscious black ink formulated for porous substrates such as cardboard, paper and fiber.
Ink Color
Black. The RNJet T Series is a dedicated black-ink batch coder — for colored or food-grade ink options, see the RNJet H Series.
Ink Management
Built-in ink calculator, ink level indicator on the controller and print driver, plus an output for an optional ink beacon alarm.
More from the RNJet T Series
RNJet T4 Frequently Asked Questions
Four independent (non-stitched) print heads from a single controller, each printing up to 25.4 mm (1 inch) tall.
Both run 4 print heads, but the RNJet T4 runs them independently (non-stitched), each printing up to 25.4 mm (1 inch) tall — useful for 4 separate codes or lanes. The RNJet T4 ST stitches its 4 heads into one continuous code up to 101.6 mm (4 inches) tall.
Cartridge-based black ink, available in solvent-based and water-based formulations.
A 1-year manufacturer warranty.* Terms and conditions apply — see our Refund and Return Policy.
Get pricing on the RNJet T4
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 T4
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