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

• Warranty: Covered by Ricoh manufacturer warranty