Liquid droplet ejecting apparatus

Details Liquid droplet ejecting apparatus Liquid droplet ejecting apparatus

2006-01-25

2008-09-09

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S068000

Reexamination Certificate

active

07422313

ABSTRACT:
There is disclosed a liquid droplet ejecting apparatus including: a tank storing a liquid; a nozzle from which the liquid is ejected in the form of a droplet; a first pressure-feed portion which is disposed between the tank and the nozzle, and pressure-feeds the liquid as supplied from the tank, to eject the liquid droplet from the nozzle; a second pressure-feed portion which has an inner volume larger than that of the first pressure-feed portion, and is disposed between the tank and the first pressure-feed portion, the second pressure-feed portion pressure-feeding the liquid as supplied from the tank to the nozzle via the first pressure-feed portion, to eject the liquid from the nozzle in an amount larger than an amount of the liquid ejected by the first pressure-feed portion as the liquid droplet; and the second pressure-feed portion including: a pressure chamber; a pressurizing member that pressurizes the liquid in the pressure chamber by decreasing an inner volume of the pressure chamber; and a liquid communication passage which holds the tank and the nozzle in communication with each other via the pressure chamber, and which includes a flow resistance generator which is disposed in at least one of a portion of the liquid communication passage between the tank and the pressure chamber, and a portion of the liquid communication passage between the pressure chamber and the nozzle, the flow resistance generator giving a flow resistance to the liquid as flowing in the at least one of the two portions of the liquid communication passage.

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