The Gen4 printhead is suitable for water-based, solvent, oily, uv ink,with an integrated heater and thermistor,has two different cable lengths: 19cm long and 44cm long and a choice of hose barb ink inlet or o-ring sealed ink inlet. It is also the most widely used nozzle in recent years. It not only has a long service life, but also has a very good color and fineness. The resolution can be close to the effect of Epson nozzles. Close to the original figure about 85%, suitable for the current market use of painting, relief, varnish process.
PHYSICAL:
Size - 63(W) x 63(D) x 16.2(H) mm (excluding cables)
Head materials - SST, Ni & Epoxy adhesive (Direct contact with ink)
Nozzle plate surface - Non-coated SST
Number of nozzles - 2x 192 channels
Ink inlet port - 2x dual ports
Piezo type - D33 stacked PZT
Drop ejection mode - Piston pusher with metallic diaphragm plate
Integrated electronics - Low-voltage serial to high-voltage parallel converter with 2-bit shift resistors and transmission gate outputs.
Temperature control - Integrated heater and thermistor
Operating temperature range - Up to 60 ° C
INKS:
Compatible jetting fluids - Water, solvent, oil, UV curable
Viscosity range - 10-12 cP (at operating temp.)
Surface tension - 28-35 dynes/cm
PERFORMANCE:
Native drop volume - 7 pico-liter
Drop volume range / variation - 5-25 pico-liter with grey-scale / ±10%
Drop velocity nominal / variation - 8 m/sec / ±10%
Crosstalk - 10% or less with all channels firing
Jet straightness 1 sigma - < 3.5 milli-radian from nozzle centerline
Operating jetting frequency - Native drop; Up to 30kHz / Grey-scale; Up to 20kHz
Life - 100 billion actuation’s per nozzle
Ricoh gen 4 printhead specification
|
|
Size
|
63 (W) * 63 (D) * 16.2 (H) mm (excluding cables)
|
|
Head Materials
|
SST, Ni & Epoxy adhesive ( direct contact with ink)
|
|
Nozzle plate surface
|
Non-coated SST
|
|
Number of nozzles
|
2 * 192 channels
|
Nozzle Spacing
A: With a row (color)
B: Row to row offset
C: Row to row distance
|
0.1693 mm (1/150'') 0.0846 mm (1/300'') 0.5292 mm
|
|
Ink injet port
|
2x dual ports
|
|
Piezo type
|
D33 stacked PZT
|
|
Drop ejection mode
|
Piston pusher with metallic diaphragm plate
|
|
Intergrated electronics
|
Low-voltage serial to high-voltage parallel converter with 2-bit shift resistors and transmission gate outputs.
|
|
Temperature control
|
Intergrated heater and themistor
|
|
Operating temperature range
|
Up to 60 ℃
|
|
Inks
|
|
|
Compatible jetting fluids
|
Water, solvent, oil, uv curable
|
|
Viscosity range
|
10-12 cP (at operating temp.)
|
|
Surface tension
|
28-35 dynes/cm
|
|
Performance
|
|
|
Native drop volume
|
7 pico-liter
|
|
Drop volume range / variation
|
5-25 pico-liter with gre-scale /±10%
|
|
Drop velocity nominal / variation
|
8 m/sec /±10%
|
|
Crosstalk
|
10% or less with all channels firing
|
|
Jet straightness 1 sigma
|
< 3.5 milli-radian from nozzle centerline
|
|
Operating jetting frequency
|
Native drop; up to 30kHz / Grey-scale; up to 20 kHz
|
|
Life
|
100 billion actuation's per nozzle
|
