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Traduction de l’étape 13

Étape 13
Let's answer your last question about the printhead now: How does it print? The action starts in the second picture. The ink inlet fills the chamber with ink (yellow).
  • Let's answer your last question about the printhead now: How does it print?

  • The action starts in the second picture.

  • The ink inlet fills the chamber with ink (yellow).

  • The ink is prevented from exiting the nozzle by surface tension.

  • (Third image) When the printer needs to print, electrical current is applied to the piezo element which expands, creates pressure, and forces a single drop of ink out of the nozzle.

  • The (microscopic) drop of ink falls on the paper.

  • The contraction of the piezo element causes the remaining ink in the nozzle opening to be sucked back into the chamber.

  • Keep in mind that this printer has to control over 240 piezo elements which move over the paper many times in the time it takes to print a single page.

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