Ricoh MH5220 Printhead

This Ricoh head (MH5220 series) is compatible with UV based inks. 

A 2.5 pl drop size allows for excellent print quality without graininess. 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 two ink colors. 

Product Specifications

• Dimensions: 89 x 24.7 x 64.2 mm (excluding cables)
• Head materials: SST, Nickel alloy and Epoxy Adhesive
• Number of nozzles: 1,280 (4 x 320 channels), staggered
• Nozzle spacing: 0.1693 mm (1/150″)
• Max. number of color inks: 2 colors
• Temperature control: Integrated Heater and Thermistor
• Operator temperature range: 60° C
• Drop volume: Binary mode : 2.5pl / Grey-scale mode : 2.5-9pl (depending on the ink)
• Jetting frequency: 30kHz 
• Viscosity range: 10-12 mPa.s
• Gray scale: 4 levels
• Number of ink ports: 2 x dual ports
• Alignment pin direction: front (standard)
• Ink compatibility: UV Inks
• Weight: 148 g

Country of origin : Japan

• 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.

 We recommend to change the head cables when installing a new printhead.