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Hitachi industrial continuous inkjet printers provide proven, state-of-the-art technology with over 35 years of experience. Hitachi inkjet printers are suitable for a variety of marking and coding in packaging applications, right from high-speed, micro to large character printing.
The following diagram illustrates the principle on which Hitachi industrial continuous inkjet printers work. To print a character on the product, individual drops of ink are electronically controlled to the correct positions.
Diagram illustrates the principle on which Hitachi industrial continuous inkjet printers work
Point 1: Ink Supply Pump
Ink is pressured by the Ink Supply Pump and flows from the Main Ink Bottle to the Nozzle parts.
Point 2: Ultrasonic Vibration
The Nozzle uses ultrasonic vibration to separate a solid pressurized ink stream into small ink droplets as it exits the Nozzle orifice.
Point 3: Character Signal
The droplets ejected from the Nozzle orifice pass through the Charge Electrode tunnel, and then between the Deflection Electrodes.
Point 4: Deflection Voltage
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.
Point 5: Deflection Electrodes
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.
Point 6: Gutter
Droplets that aren't required for printing are retrieved by the Gutter and recycled back into the Main Ink Bottle for reuse..