Gen5 Printhead for Ricoh Mimaki

Available for water ink & UV. Both types can be supplies with short (14 cm) and long (50 cm) cables. Please contact us by email to specify the head type and cable length.

Design Features

- 1280 channels

- Two color and four color support

- Single color: 600npi

- Two color: 300npi

- Four color: 150npi

- 8 level grey scale capability

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

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

Used on latest Mimaki SWJ-320 etc.