Brand new and original Ricoh gen4 original printhead 7pl
| Size | 63(W)*63(D)*16.2(H)mm (excluding cables) |
| Head materials | SST,Ni & Epoxy adhesive (Direct contact with ink) |
| Head plate surface | Non-coated SST |
| Number of head | 2*192 channles |
|
Head spacing A:with a row B:Row to row offset C:Row to row distance |
0.1693 mm(1/150”) 0.0846 mm （1/300‘’） 0.5292 mm |
| Ink inlet port | 2x dual ports |
| Piezo type | D33 stacked PTZ |
| Drop ejection mode | Piston pusher with metallic diaphragm plate |
| Integrature electronics | Low-voltage serial to high-voltage parallel |
| Temperature control | Integrated heater and thermistor |
| Operating temperature range | Up to 60°C |
| Compatible jetting fluids | Water base,solvent,oil,UV curable |
| Viscosity range | 10-12 cP(at operating temp.) |
| Surface tension | 28-35 dynes/cm |
| Native drop volume | 7 pico liter |
| Drop volume eange/variation | 5-25 pico-liter with grey-scale ±10% |
| Drop velocith nomial/variation | 8 m/sec/±10% |
| Crosstalk | 10% or less with channels firing |
| Jet straightness 1 sigma | ＜3.5 milli-radian from head centerline |
| Operating jetting frequency | Native drop:Up to 30kHZ/Gery-scale;Up to 20kHZ |
| Life | 100 billion actuation’s per head |
