Moving nozzle ink jet printing mechanism
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United States of America Patent
Stats
-
Sep 2, 2003
Grant Date -
Jul 12, 2001
app pub date -
Mar 2, 2001
filing date -
Jun 9, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ink jet nozzle assembly includes a nozzle chamber having an inlet to receive ink from a reservoir and a nozzle through which the ink can be ejected. The chamber includes a fixed portion and movable portion configured such that relative movement in an ejection phase reduces an effective volume of the chamber, and alternate relative movement in a refill phase enlarges the effective volume of the chamber. An actuator connected with the movable portion of the chamber periodically effects the relative movement. The nozzle is formed in the movable portion and the inlet is positioned and dimensioned relative to the nozzle such that ink is ejected preferentially from the chamber through the nozzle in droplet form in the ejection phase, and ink is alternately drawn preferentially into the chamber from the reservoir through the inlet in the refill phase.
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Cited Art Landscape
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