Ultrasonic printer

Details Ultrasonic printer Ultrasonic printer

1994-03-08

1997-03-18

Hartary, Joseph W.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 7, 347 13, 347 15, 347 89, B41J 204

Patent

active

056127235

ABSTRACT:
There is provided an ultrasonic printer in which convergent ultrasounds are radiated to emit an ink near a convergent point of the convergent ultrasounds in the form of an ink droplet and deposit the ink droplet on a recording medium such as a paper sheet, thereby performing a recording on the recording medium with multiple ink dots, with higher resolution. The ultrasonic printer has a plurality of ultrasonic transducers which transmit phase-controlled ultrasonic waves to form an convergent ultrasonic acoustic beam.

REFERENCES:
patent: 4308547 (1981-12-01), Lovelady et al.
patent: 4636814 (1987-01-01), Terasawa
patent: 4751530 (1988-06-01), Elrod et al.
patent: 4929963 (1990-05-01), Balazar
patent: 5041849 (1991-08-01), Quate et al.
patent: 5329293 (1994-07-01), Liker
patent: 5339101 (1994-08-01), Rawson et al.

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