The Spectra®SL128 AA 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 Spectra SL128 AA 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 128 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.
Optional temperature control components are
available for precise control of fluid viscosity.
Optional deaeration hardware is also available.
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