Ink printer head composed of individual ink printer modules, with an adapter plate for achieving high printing density
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United States of America Patent
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-
Apr 9, 2002
Grant Date -
N/A
app pub date -
Jun 23, 1995
filing date -
Jul 5, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink printer head of individual ink printer modules operating according to the edge-shooter principle equipped with piezoelectric actuators is provided for use in printers for postage meter machines and correspondingly has a large number of nozzles arranged in columns. An assembly has n ink printer modules arranged in registry side-by-side with ink chambers open toward a front side of the assembly with an adapter plate matched to the front face and having openings in registry with ink chambers is disposed adjacent the front face. A nozzle plate adapted to the adapter plate is disposed in front of the adapter plate. The nozzle plate is supported by the adapter plate and a spatial matching between the larger ink chambers and the smaller nozzles is achieved. Moreover, the two ink chamber columns of a module are united to form one nozzle column. A reduction in the manufacturing outlay while preserving the requiring printing precision is achieved. A high degree of repetition is achieved by employing identical ink printer modules and ink paths of approximately identical length is also achieved. The nozzle apertures can be given a circular cross-section without difficulty.
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