Ricoh GEN5 Printhead - MH5440

Ricoh GEN5 Printhead - MH5440

This Ricoh GEN5 Printhead - MH5440 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.

The following items are expressly excluded from warranty coverage:
    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.
    This printhead carries a manufacturer warranty.
    Country of origin : Japan