Ricoh Gen5 printhead For Mimaki SWJ-320

Design Features

- ***0 channels

- Two color and four color support

- Single color: **0npi

- Two color: **0npi

- Four color: **0npi

- 8 level grey scale capability



Specification

Size: *9 x *5 x *9 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 **0 channels

Nozzle spacing:

A: Within a single row: 0.***3 mm (1/**0")

B: Within a color: 0.***7 mm (1/**0")

C: Single Pass: 0.***3 mm (1/**0")

D: Row to row distance: 0.*5 mm

E: Color to color: *1.**1 mm

Inkjet inlet port: 2 x dual ports

Piezo type: D*3 staked PZT

Drop ejection mode: Piston pusher with metallic diaphragm plate

Integrated electronics: Low voltage serial to high voltage parallel converter; *-bit shift resistors; transmission gate outputs

Temperature control: Integrated heater and thermistor

Viscosity: *1 cP at operating temperature

Surface tension: *2 dynes/cm

Native drop volume: 7 picoliter

Drop volume range/variation: ***5 picoliter with grey scale *- *0%

Drop velocity nominal/variation: 7 m/sec/ ***5%

Crosstalk: *0% or less with all channels firing

Jet straightness 1 sigma: < 3.5 milliradian from nozzle radian

Native drop operation frequency: *0kHz Higher burst possible under ideal condition

Life: **0 billion actuation's per nozzle

Used on latest Mimaki SWJ***0 etc.