This Ricoh printhead is suitable for GH2220 based printers. This is the original Ricoh part (number GH2220).

Technical Specifications

• Size: 61.8(W) × 40.5(D) × 23.3(H) mm (2.43" × 1.59" × 0.92")
• Number of Nozzles: 384
• Nozzle spacing (Within a row): 0,1693 mm/row
• Nozzle spacing (Row to row distance): 0.931 mm 
• Method: Piston pusher with metallic diaphragm plate
• Temperature Control: No heater or thermistor
• Drop volume: Binary mode : 3-5pl / Grey-scale mode : 21±2pl
• *depending on the ink
• Jetting Frequency: Binary mode : 30kHz / Grey-scale mode : 24kHz
• Life: 30 billion actuations per nozzle
• Compatible ink: Aqueous, Solvent, UV