Industry News



Expanding industrial opportunities
with new precision fabricated silicon range.

Introducing the new GH Print Head to complement Ricoh’s stainless steel MH series Print Head family. The GH Print Head is a result of over 10 years of Ricoh research and manufacturing optimization and is now made available for OEMs to incorporate in their aqueous and solvent ink based printer offerings.

Supports water and solvent based inks.

In addition to water-based inks, these print heads support solvent inks as well.

Multi-drop technology enables gray scale expressions

These print heads support multi-drop-based droplet control for instantly consolidating the ink that is discharged from the nozzle at high speeds before it reaches the surface of the medium. Droplet volume control enables full control of ink discharge from small to large droplets.

Specifications / External dimensions

Expanding industrial opportunities with new precision 
fabricated silicon range.

image1:Specifications / External dimensions

MethodPiston pusher with metallic diaphragm plate
Print Width32.4 mm(1.28")
Number of nozzles384
Nozzle spacing (Within a row)1/150"(0.1693 mm)/row
Nozzle spacing (Row to row distance)0.931 mm
Compatible inkAqueous, Solvent
Total printhead dimensions61.8(W) × 40.5(D) × 23.3(H) mm (2.43" × 1.59" × 0.92")
Max number of color inks2 colors
Temperature controlNo heater or thermistor
Life30 billion actuations per nozzle
Jetting frequencyBinary mode : 30kHz / Grey-scale mode : 24kHz
Drop volumeBinary mode : 3-5pl / Grey-scale mode : 21±2pl
*depending on the ink
Viscosity range8±0.5mPa・s(@25℃)
Surface tension25±5mN/m (@23±2℃)
Maximum gray scale4 levels * depends on ink characteristics
Alignment mechanismFrame-abutting
  • *Results obtained from continuous jetting test using standard Ricoh test ink.

image2:Specifications / External dimensions