Ricoh GH2220 Water/Solvent Printhead

                      

Ricoh  GH2220 Water-Solvent Printhead
Printhead Technical Specifications:
Ricoh  GH2220 Water Solvent Printhead is introduced 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.

Ricoh  GH2220 Water Solvent Printhead 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.





GH2220MethodPrint WidthNumber of nozzlesNozzle spacing (Within a row)Nozzle spacing (Row to row distance)Compatible inkTotal printhead dimensionsWeightMax number of color inksTemperature controlLifeJetting frequencyDrop volumeViscosity rangeSurface tensionMaximum gray scaleAlignment mechanism

Piston pusher with metallic diaphragm plate

32.4 mm(1.28″)

384

1/150″(0.1693 mm)/row

0.931 mm

Aqueous, Solvent

61.8(W) × 40.5(D) × 23.3(H) mm (2.43″ × 1.59″ × 0.92″)

36g

2 colors

No heater or thermistor

30 billion actuations per nozzle

Binary mode : 30kHz / Grey-scale mode : 24kHz

Binary mode : 3-5pl / Grey-scale mode : 21±2pl *depending on the ink

8±0.5mPa・s(@25℃)

25±5mN/m (@23±2℃)

4 levels * depends on ink characteristics

Frame-abutting

• 
  *
  Results obtained from continuous jetting test using standard Ricoh test ink.