Droplet ejection apparatus and ink-jet recording apparatus

Details Droplet ejection apparatus and ink-jet recording apparatus Droplet ejection apparatus and ink-jet recording apparatus

2006-08-24

2009-12-08

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

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

07628477

ABSTRACT:
A droplet ejection apparatus is provided of which maintenancibility is improved while liquid stored therein is prevented from being wasted at the time of maintenance. The apparatus includes a main tank storing the liquid, a head unit including a sub-tank that temporarily stores the liquid fed from the main tank and an ejection head that ejects the liquid fed from the sub-tank as droplets, a head unit transfer device that transfers the head unit to a predetermined position, a displacement member disposed to freely move in the liquid in a liquid supply passage from the sub-tank to the ejection head, a continuous pressurizing unit that continuously moves the displacement member to continuously apply pressure to the liquid, and an instantaneous pressurizing unit that instantaneously moves the displacement member to instantaneously apply pressure to the liquid.

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