Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2005-05-31
2005-05-31
Stephens, Juanita D. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S025000
Reexamination Certificate
active
06899410
ABSTRACT:
An ink jet printing apparatus having a cleaning station that is structurally integrated with a droplet deflector is provided. The apparatus includes an ink droplet forming mechanism formed from a printhead having at least one nozzle for ejecting a stream of ink droplets of different volumes, a pneumatic droplet deflector for producing a flow of gas that transversely impinges the droplet stream of the printhead in order to separate ink droplets of different volumes from one another. The droplet deflector includes a pressurized gas source, which may be an air blower, and a plenum for conducting the gas flow generated by the gas source. The cleaning station is formed at least in part from the plenum of the droplet deflector, and provides a flow of both a liquid cleaning fluid and a flow of gas to periodically clean the printhead of the ink droplet forming mechanism.
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Mouttet Blaise
Stephens Juanita D.
Zimmerli William R.
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