Introduction 25
2006792 Rev B – 200228
Introduction
JetStream System Description
The JetStream is a Continuous Inkjet (CIJ) printing system that is designed to print superior
quality small dot-matrix characters on a variety of porous, non-porous, smooth, textured, and
concave surfaces.
How the JetStream Works
The JetStream forces a stream of ink from the Console through the Umbilical Tube to the
Printhead, where the ink stream is broken into tiny drops. Some drops are diverted out of the
Printhead Orifice to print on the passing product/substrate, while other drops go directly into the
Ink Return Gutter inside the Printhead. This ink is brought back through the Umbilical Tube to
the Mixing Tank to be reused.
A more detailed description is as follows. A dedicated Diaphragm Pump draws ink from the Ink
Container into the Mixing Tank. A Viscometer monitors the viscosity of the ink in the Mixing
Tank. Pure ink is too thick (viscous) to use and must be diluted with makeup fluid. The ink also
becomes thicker when exposed to air inside the Printhead, so small amounts of makeup fluid
(solvent) are occasionally added to the Mixing Tank automatically – based on continuous
feedback from the Viscometer – to keep the ink at the required viscosity for printing.
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