Ricoh GEN5 Printhead - MH5440

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. This head comes with hose barbs. The hose barbs can be removed if printhead with o-rings is needed. Ricoh P/N is N221345P.

• defects related, in any way, to the use of non-original inks
• clogged, missing or deviated nozzles
• defects related to misuse, abuse, accident, neglect, lack of use, or improper storage when not in use for extended periods
• defects related to failure to perform periodic maintenance as specified in the user documentation; operation for unintended purposes
• defects related to improper loading of media
• all other defects, failures or damage not considered manufacturing defects
• defects related to third-party applications, software, parts, components, or peripheral devices, including any bulk ink system.
• defects that are merely cosmetic in nature.

Product Specifications

• 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 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: 500 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.
• Country of origin : Japan