Spectra Nova Printhead Features:
75 picoliter calibrated drop size
256 individually addressable, inline nozzles
Excellent channel to channel uniformity
Excellent jet straightness
High frequency continuous operation
Orientation independent
Designed for long service life
Operation up to 90ºC [194ºF]
Permits high viscosity jetting fluids
Compatible with aqueous liquids
Dual ported for ease of flushing
Optional temperature control
specification:
The Spectra Nova 256 printhead is a high performance, robust and reliable jetting assembly designed for a broad range of industrial and commercial printing applications such as wide format graphics, textiles, addressing and packaging at resolutions up to 450 dpi.
The Nova 256 head is a compact ink jet jetting assembly designed specifically for applications using a variety of jetting fluids and requiring multiple printheads packed tightly together.
Four electrically independent piezoelectric slices, each with 64 addressable channels, are combined to provide a total of 256 jets. The nozzles are arranged in a single line, at a 0.011 inch distance between nozzles.
The fluid interface and electrical connection are at the top of the jetting assembly. Several mounting configurations are possible. This arrangement permits extremely tight packing in the print process direction. The dual ported fluid interface facilitates flushing for quick change-overs and for displacing drying fluids with inert fluids during periods of non-use.
This jetting assembly contains serial-to-parallel converters for selecting which jets to fire; all jets can be fired simultaneously or individually. By using an optional Head Interface Board, image data can be daisy-chained into one serial stream to reduce the data interface hardware requirements. A high voltage fire pulse with controlled slew rates is used to actuate the pumping chambers within each channel.
Printer compatibility: Mutoh Osprey / Toucan / Cobra 100 / Cobra S65uv / Cobra S100uv, Agfa Anapurna 100 / Anapurna L / Anapurna X / Anapurna XL, HP Scitex XP2100 / XP2300 / XP5100 / XP5300, VUTEk PV150 / 2360 / 3360 / 5330, DGI PS-2504 / PS-3206D / PS-3204 / PS-3204D
Optional temperature control components are available for precise control of fluid viscosity. Optional deaeration hardware is also available.
Number of addressable jets | 256 |
Nozzle spacing | 279 microns [0.011 in.] |
Nozzle diameter | 52 microns |
Calibrated drop size | 75 picoliters |
Adjustment range for drop size | 70 - 85 picoliters |
Drop size variation, 1 sigma* | 5% |
Jet Straightness, 1 sigma* | 4 mrad [0.23°] |
Nominal drop velocity | 8 m/sec |
Drop velocity variation, 1 sigma* | 5% |
Crosstalk, maximum | 5% |
Operating temperature range | up to 90°C [194°F] |
Fluid viscosity range (at jetting temperature) | 8 - 20 cP |
Compatible jetting fluids | Aqueous, Organic solvent, UV curable |
Maximum operating frequency | 20 kHz |
