is the name given to the printing process in which ink is pressed through nozzles (jets).

The bubblejet system is found in printers from HP, Canon, Encad or Kodak. Here the ink is heated, which causes it to expand and form a vapour bubble that is pressed through a nozzle. B) Piezo technology is used in printers from Epson, Mutoh, Mimaki and Roland. Here, the ink is sucked into the chamber by negative pressure.

A voltage is applied to a piezo element (semiconductor). The piezo element expands, starts to vibrate and displaces the ink from the chamber. The ink shoots through the nozzle opening onto the medium to be printed and the resulting negative pressure sucks ink into the ink chamber again. This process is also repeated thousands of times per second.

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