Mosaic recorder with improved transducer

Details Mosaic recorder with improved transducer Mosaic recorder with improved transducer

1982-03-25

1984-03-20

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

310330, G01D 1518

Patent

active

044384416

ABSTRACT:
A mosaic recorder for selectively ejecting recording liquid droplets from a plurality of nozzles in a recording head onto a moving recording medium for punctiform representation of characters and images has a plurality of piezoelectric transducers respectively associated with each nozzle which are individually actuated for ejecting a droplet from the associated nozzle. The individual transducers are in the form of teeth of a comb-like bilaminar piezoplate consisting of piezoceramic material and a carrier material. The piezo material is removed from portions of the free ends of the transducer teeth which overlie the nozzles for reducing the hydraulic coupling between the teeth in order to substantially minimize cross-talk between an activated transducer tooth and the adjacent transducer teeth.

REFERENCES:
patent: 2900536 (1959-08-01), Palo
patent: 4072959 (1973-02-01), Elmquist

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