Droplet discharging head, droplet discharging apparatus,...

Details Droplet discharging head, droplet discharging apparatus,... Droplet discharging head, droplet discharging apparatus,...

2007-07-16

2009-12-29

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07637601

ABSTRACT:
A droplet discharging head includes: a nozzle substrate that has a plurality of nozzle holes; a cavity substrate that communicates with the nozzle holes and which has a plurality of independent discharge chambers, the discharge chambers generating pressure therein so as to discharge droplets through the nozzle holes; a reservoir substrate that has a reservoir concave section and is provided between the nozzle substrate and the cavity substrate, the reservoir concave section functioning a reservoir, the reservoir being shared for communicating with the discharge chambers; a resin thin film formed on an entire inner surface of the reservoir concave section by film deposition, the resin thin film not being formed in the reservoir substrate on a side of an adhesion interface with the nozzle substrate or the cavity substrate; and a bottom surface of the reservoir concave section functioning a diaphragm section, the diaphragm section including the resin thin film and buffering pressure fluctuation.

REFERENCES:
patent: 2006/0092239 (2006-05-01), Sung et al.
patent: 2007/0263041 (2007-11-01), Owaki
patent: 2008/0129799 (2008-06-01), Lee et al.
patent: 02-059769 (1990-02-01), None
patent: 11-115179 (1999-04-01), None

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