G - Physics – 01 – D
Patent
G - Physics
01
D
101/96.0213
G01D 15/18 (2006.01) B41J 2/015 (2006.01) B41J 2/045 (2006.01)
Patent
CA 1129477
ABSTRACT Disclosed is a circuit arrangement for selecting recording nozzles in ink mosaic recording devices with piezo-electric drive elements. Transistors switching high voltages for the piezo-electric transducers, together with a shift register in the recording head selecting these transistors, are disposed on either side of the rows of recording nozzles. Recording chambers, containing ink, are expanded by supplying individual piezo-electric transducers with the required voltage potential by individually co-ordinated and individually selectable transistors. The voltage potentials of the charged piezo-electric transducers are jointly discharged through a single electronic switch, permitting, by means of contraction of the piezo- electric transducers, ejection of ink droplets.
339925
Kern Hans
Lichti Reiner
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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