Ricoh Gen5 Printhead

Ricoh Gen5 printhead available for water ink & UV printers. Both printhead types can be supplied with short (24.8 cm) and long (50 cm) cables.
Please contact us by email to specify the head type and cable length.

Gen5 Design Features
- 1280 channels
- Two color and four color support
- Single color: 600npi
- Two color: 300npi
- Four color: 150npi
- 8 level grey scale capability

Ricoh Gen5 Specification
Size: 89 x 25 x 69 mm excluding cable and connectors
Head materials: SST, Nickel alloy and epoxy adhesive, direct contact with ink
Compatible jetting fluids: Compatible with water, solvent, oil, UV curable inks
Nozzle plate surface: Coated SST
Number of nozzles: 4 x 320 channels
Nozzle spacing:
A: Within a single row: 0.1693 mm (1/150")
B: Within a color: 0.0847 mm (1/300")
C: Single Pass: 0.0423 mm (1/600")
D: Row to row distance: 0.55 mm
E: Color to color: 11.811 mm
Inkjet inlet port: 2 x dual ports
Ricoh Gen5 print head Piezo type: D33 staked PZT
Drop ejection mode: Piston pusher with metallic diaphragm plate
Integrated electronics: Low voltage serial to high voltage parallel converter; 3-bit shift resistors; transmission gate outputs
Temperature control: Integrated heater and thermistor
Viscosity: 11 cP at operating temperature
Surface tension: 32 dynes/cm
Native drop volume: 7 picoliter
Drop volume range/variation: 7-35 picoliter with grey scale +- 10%
Drop velocity nominal/variation: 7 m/sec/ +-15%
Crosstalk: 10% or less with all channels firing
Jet straightness 1 sigma: < 3.5 milliradian from nozzle radian
Native drop operation frequency: 60kHz Higher burst possible under ideal condition
Life: 100 billion actuation's per nozzle