Ricoh – MH5440 GEN5 Printhead

This Ricoh GEN5 Printhead is suitable for a range of UV, Solvent, and Aqueous-based printers. 

With 1,280 nozzles configured in 4 x 150dpi rows, this head achieves high-resolution 600dpi printing. Additionally, the ink paths are isolated, enabling a single head to jet up to four ink colors. It achieves excellent gray-scale rendering with up to 4 scales per dot.

Product Specifications

• Method:  Piston pusher with a metallic diaphragm plate
• Print Width: 54.1 mm (2.1″)
• Number of nozzles: 1,280 (4 × 320 channels), staggered
• Nozzle spacing (4 color printing): 1/150″(0.1693 mm)
• Nozzle spacing (row to row distance): 0.55 mm
• Nozzle spacing (Upper and lower swath distance): 11.81mm
• Max. number of color inks: 4 colors
• Operating temperature range: Up to 60℃
• Temperature control: Integrated heater and thermistor
• Jetting frequency: Binary mode : 30kHz / Grey-scale mode : 20kHz
• Drop volume: Binary mode: 7pl / Grey-scale mode : 7-35pl *depending on the ink
• Viscosity range: 10-12 mPa•s
• Surface tension: 28-35mN/m
• Grey-scale: 4 levels
• Total Length: 248 mm (standard) including cables
• Dimensions: 89 x 25 x 69 mm (excluding cable)
• Number of ink ports: 4 × dual ports
• Alignment pin direction: Front (standard)
• Ink compatibility: UV, Solvent, Aqueous, Others.