New Ricoh GEN5 Printhead - MH5440 / N221345P

The Ricoh GEN5 Printhead is a high-performance industrial printhead designed for UV, solvent, and aqueous-based printers. Built for precision and durability, it features 1,280 nozzles arranged in four 150 dpi rows, enabling true 600 dpi resolution with smooth grayscale rendering. With isolated ink paths, a single printhead can jet up to four different ink colors, making it a versatile solution for high-quality multi-color printing.



This original Ricoh part P/N N221345P is engineered with advanced drop control, integrated temperature management, and flexible ink compatibility. It is trusted by leading printer manufacturers worldwide for its reliability, long service life, and consistent performance.



? Supports UV, solvent, aqueous, and specialty inks

? True 600 dpi resolution with up to 4 grayscale levels

? Designed for industrial-grade durability and precision



Product Specifications:



Print Method: Piston pusher with metallic diaphragm plate



Print Width: 54.1 mm 2.1



Number of Nozzles: 1,280 4 × 320 channels, staggered



Nozzle Spacing 4-color: 0.1693 mm 1/150



Row-to-Row Distance: 0.55 mm



Upper Lower Swath Distance: 11.81 mm



Max Colors: 4 colors



Operating Temperature: Up to 60°C



Temperature Control: Integrated heater and thermistor



Jetting Frequency: 30 kHz binary / 20 kHz grayscale



Drop Volume: 7 pl binary / 7–35 pl grayscale, depending on ink



Viscosity Range: 10–12 mPa•s



Surface Tension: 28–35 mN/m



Grayscale Levels: 4



Dimensions: 89 × 25 × 69 mm excluding cable



Total Length: 500 mm with cables



Ink Ports: 4 × dual ports



Alignment Pin Direction: Front standard



Ink Compatibility: UV, solvent, aqueous, others



Origin: Japan