Original Ricoh GH2220 Printhead


Specifications / External dimensions

Expanding industrial opportunities with new precision
fabricated silicon range.

Method Piston pusher with metallic diaphragm plate
Print Width 32.4 mm(1.28")
Number of nozzles 384
Nozzle spacing (Within a row) 1/150"(0.1693 mm)/row
Nozzle spacing (Row to row distance) 0.931 mm
Compatible ink Aqueous, Solvent
Total printhead dimensions 61.8(W) × 40.5(D) × 23.3(H) mm (2.43" × 1.59" × 0.92")
Weight 36g
Ink colors supported 2 colors
Temperature around the head 10-32ºC
Temperature control No heater or thermistor
Life 30 billion actuations per nozzle
Jetting frequency Binary mode : 30kHz / Grey-scale mode : 24kHz
Drop volume Binary mode : 3-5pl / Grey-scale mode : 21±2pl
*depending on the ink
Viscosity range 6-16 mPa•s
Surface tension 25±1mN/m
Maximum gray scale 4 levels * depends on ink characteristics
Alignment mechanism Frame-abutting
  • *Results obtained from continuous jetting test using standard Ricoh test ink.

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