Supersonic wave, ink jet recording apparatus including ink circu

Details Supersonic wave, ink jet recording apparatus including ink circu Supersonic wave, ink jet recording apparatus including ink circu

1998-03-11

2000-09-26

Lee, Susan S. Y.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 10, 347 68, B41J 2135, B41J 2938, B41J 2045

Patent

active

061234125

ABSTRACT:
An ink jet recording apparatus uses supersonic waves focused on an ink holding container to inject ink from the ink surface onto a recording medium. A piezoelectric element driven by a first driving signal serves as the supersonic wave generator. The piezoelectric element can also be driven by a second driving signal to effectively circulate the ink in the holding container. The second driving signal results in an acoustic pressure at the ink surface lower than the acoustic pressure necessary for injecting the ink onto a recording medium.

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