HITACHI Continuous Inkjet Printers

Principle of Continuous Inkjet Printing

To print a character on the product, individual drops of ink are electronically controlled to the correct positions.

Ink is pressured by the Ink Supply Pump and flows from the Main Ink Bottle to the Nozzle parts.

The Nozzle uses ultrasonic vibration to separate a solid pressurized ink stream into small ink droplets as it exits the Nozzle orifice.

The droplets ejected from the Nozzle orifice pass through the Charge Electrode tunnel, and then between the Deflection Electrodes.

Each droplet passing through the Charge Electrode receives a Deflection Voltage charge where Deflection Voltage varies between droplets. These charged droplets deflect in a predetermined array pattern depending on the Deflection Voltage charge.

After the droplets pass through the Deflection Electrodes, they continue to travel in their predetermined array pattern out of the Printhead and onto the substrate.

Droplets that aren’t required for printing are retrieved by the Gutter and recycled back into the Main Ink Bottle for reuse.
Hitachi is committed to protecting our environment by providing you with products that are eco-friendly.

Our Continuous Ink Jet Printers’ unique ink circulation system reduces typical fluid usage by 50 percent contributing to lower solvent emissions. In addition to minimizing fluid wastes we also maximize your return on investment through higher component reliability and MTBFR (Mean Time Between Failure Rates).

The European Union RoHS Directive restricts the use of hazardous hexavalent metals in electrical and electronic equipment. Although this directive does not apply to our Continuous Ink Jet Printers, Hitachi has voluntarily reduced the amounts of these hazardous metals below the levels outlined by the directive.