Print head assembly for use in an ultrasonic printer

Details Print head assembly for use in an ultrasonic printer Print head assembly for use in an ultrasonic printer

1992-06-18

1993-04-06

Fuller, Benjamin R.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346 76R, 400121, 400124, G01D 1510, B41J 225

Patent

active

052007642

ABSTRACT:
The present invention relates to a print head assembly for use in an ultrasonic printer. The print head assembly comprises at least one print head which is slidably mounted in a block which is slidably secured in the ultrasonic printer. Each print head comprises an ultrasonic vibrator, a horn coupled to the ultrasonic vibrator for amplifying energy generated by the ultrasonic vibrator, and a print head wire coupled to the horn. The print head wire has a tip which forces an ink ribbon into engagement with a print medium and against a platen in the ultrasonic printer in order to print a pixel thereon. A pressurizing mechanism contacts the block and forces the tip of the at least one print head against the ink ribbon and the print medium and against the platen with a predetermined force in order to print at least one pixel on the print medium.

REFERENCES:
patent: 4046073 (1977-09-01), Mitchell et al.
patent: 4781477 (1988-11-01), Nagasawa
patent: 4787760 (1988-11-01), Nagasawa
patent: 4908631 (1990-03-01), DeBoer et al.
Edward Eisner, "Design of Sonic Amplitude Transformers for High Magnification", The Journal of the Acoustical Society of America, vol. 35, No. 9, Sep. 1963, pp. 1367-1377.

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