Page 52 Operation – Elements and procedures Group 6
Release R1.07 en JET2 neo
The print head contains all mechanical, electronic and hydraulic components which are
required for the creation of print out. It is connected with the hydraulic cabinet by a
flexible umbilical.
The JET2 neo works in accordance with the continuous ink jet process. In this a
constant ink jet is emitted from a jet nozzle which is broken down into a series of
equal size drops under the influence of mechanical oscillations.
If required these drops are individually charged up electrostatically and deflected
into a constant electrical field depending on the charge. As a result not just one
point but rather a line of points can be applied contact
free with one jet. If the
product used is moved vertically to the drop
dimensional patterns
(characters) can be created.
The drops that are not required for a programmed inscription are not charged and
flow uninfluenced through the electrical deflection field into a gutter. In the gutter
the drops are sucked up by a suction pump and fed back into the ink tank.
Depending on the application alphanumeric data and graphics can be entered with
the TFT touch display.
Data for font and texts are stored in the device (even in the event
of power failure). If required it can be called up, altered or deleted
quickly and easily.
Further more, all jobs, fonts and graphics can be saved as a back-
up e.g. on a USB-stick.
During the drop creation the ink is pressed through a jet nozzle under pressure and
at the same time modulated in such a way by highly frequent sinus oscillations that
are imposed on the drop that it attaches itself to the nodal points of the oscillations
and breaks down into individual drops at a specific distance
(please see the
following figure “Creation of a character”)
. The oscillations are created
with an oscillatory system that is excited by a Piezo oscillator.
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