Ink droplet jet device

Details Ink droplet jet device Ink droplet jet device

1992-04-10

1994-11-08

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2045

Patent

active

053631331

ABSTRACT:
In the ink droplet jet device of the present invention having a plurality of jet units for jetting an ink in an ink channel from jet nozzles formed on a nozzle plate by changing a volume in the ink channel by using a piezoelectric transducer, two plates are bonded for forming the ink channel. Two piezoelectric ceramic plates having grooves whose widths are larger than widths of the ink channel are provided. Alternatively, one piezoelectric ceramic plate and non-piezoelectric materials can be provided on which the same grooves are formed. When the interval between adjoining ink channels becomes very small to enable an increase in a number of jet nozzles communicating with the ink channels in order to make an image formed by the jetted ink droplet an image of high resolution, the groove processing of the piezoelectric ceramic plate is facilitated because the width of grooves to be ground is very wide in comparison with a conventional device, thereby reducing manufacturing cost.

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patent: 5028936 (1991-07-01), Bartky et al.
patent: 5072240 (1991-12-01), Miyazawa et al.

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