Thermal edge jet drop-on-demand ink jet print head
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United States of America Patent
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-
Oct 22, 1991
Grant Date -
N/A
app pub date -
May 16, 1990
filing date -
May 16, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thermal drop-on-demand ink jet print head in which conductor electrodes are formed on opposed surfaces of a print head substrate and extend to the edge of the substrate. An array of heater elements is formed on the edge of the substrate in electrical contact with the conductor electrodes. A nozzle plate is mounted with a nozzle aligned with each heater element, and a manifold is positioned to provide ink to the space between the nozzle plate and the edge of the substrate so that a drop of ink can be ejected from the nozzle each time the associated heater element is energized with a data pulse applied to a selected one of the conductor electrodes.
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