Ricoh Unveils the MH3820 Printhead at Interpack: Revolutionizing Marking and Coding for the Packaging Industry

Ricoh Unveils the MH3820 Printhead at Interpack: Revolutionizing Marking and Coding for the Packaging Industry

The global paper, corrugated cardboard, and packaging industries are constantly evolving, driven by the need for greater efficiency, traceability, and high-quality printing capabilities. At the recent Interpack trade fair, a landmark event for processing and packaging professionals, Ricoh made waves with the introduction of its latest technological marvel: the MH3820 printhead. Engineered to meet the demanding requirements of modern marking and coding applications, this new component promises to significantly enhance operations across tertiary and secondary packaging lines.

Next-Generation Technical Specifications

As the successor to the well-regarded MH2620, the new MH3820 printhead brings substantial upgrades that cater to the high-speed demands of the 2024-2025 industrial landscape. The device boasts a distinctive long and thin physical profile, fortified with a highly durable stainless steel nozzle plate. This robust construction is essential for the rigorous environments typical of corrugated board manufacturing and high-volume packaging facilities.

At the core of its performance is an expansive print swathe of 108.2 mm, allowing for wider coverage in a single pass. The printhead is designed with two distinct rows of nozzles, delivering a resolution of 150 dpi. Each row houses 320 precision nozzles, and crucially, the nozzles in each row can run as a completely separate channel. This dual-channel capability enables the MH3820 to feature two colors simultaneously—typically a spot color and a black ink plus configuration—providing immense flexibility for printing barcodes, batch numbers, and branding elements directly onto cartons.

Furthermore, the MH3820 is capable of producing three distinct grey levels, ensuring sharp, legible text and smooth graphics. Behind these improvements lies a brand-new piezo stack. This advanced internal architecture allows the printhead to support much higher operating temperatures and generates significantly greater pumping power. The direct result is higher drop velocities, which translates to superior drop placement accuracy and crisp edge definition even at accelerated production line speeds.

Unmatched Fluid Versatility

One of the most critical trends in the 2024 and 2025 packaging sector is the shift toward diverse, application-specific substrates and sustainable packaging materials. Adapting to these surfaces requires immense ink versatility. Ricoh has addressed this by ensuring the MH3820 is fully compatible with a wide spectrum of fluid types, accommodating fluid viscosities ranging from 10 to 14 mPa.s. The supported inks include:

• Oil-based inks: Ideal for porous substrates like standard corrugated cardboard and uncoated paperboards.
• UV-curable inks: Essential for non-porous secondary packaging, offering instant drying and high durability against scuffing.
• Solvent-based inks: Perfect for specific industrial applications requiring aggressive adhesion.

Impact on the Corrugated and Additive Manufacturing Sectors

For the corrugated industry, the MH3820 is a timely innovation. E-commerce continues to grow, and with it, the necessity for high-quality, late-stage customization on secondary and tertiary packaging. Being able to print high-contrast, durable codes, logos, and tracking information directly onto shipping boxes eliminates the need for physical labels, thereby reducing material costs and simplifying the recycling process of the paperboard.

As global supply chains become more complex in 2024 and 2025, regulatory bodies and consumers alike are demanding greater transparency. Smart packaging, embedded with high-resolution QR codes and serialized tracking data, has shifted from a premium feature to a strict industry standard. The MH3820 addresses this shift directly. By reliably printing high-density machine-readable codes on tertiary packaging—like bulk transit boxes and shrink-wrapped pallets—manufacturers can guarantee end-to-end traceability without slowing down throughput.

Beyond traditional packaging and printing, the capabilities of the MH3820 extend into the rapidly expanding field of additive manufacturing. Its high-temperature tolerance, robust stainless steel nozzle plate, and powerful droplet ejection make it an excellent candidate for 3D printing applications, where precise deposition of functional fluids or binders is critical.

In conclusion, Ricoh's introduction of the MH3820 printhead at Interpack marks a significant milestone for industrial inkjet technology. By combining higher drop velocities, versatile ink compatibility, and a wide print swathe, the MH3820 not only answers the current logistical and branding demands of the global packaging sector but also paves the way for innovative applications in additive manufacturing.