Device for printing droplet or ink on substrate or paper

Details Device for printing droplet or ink on substrate or paper Device for printing droplet or ink on substrate or paper

2011-03-22

2011-03-22

Nguyen, Thinh H (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S081000

Reexamination Certificate

active

07909427

ABSTRACT:
A device for printing a droplet onto a substrate includes: a droplet generating member which is needle-shaped and comprises a receiving portion disposed vertically to receive a solution, and a discharge hole connected to the receiving portion and formed on a bottom of the receiving portion so that the solution can be discharged from the receiving portion; a substrate disposed below the droplet generating member, the substrate includes a target portion to which the droplet discharged from the discharge hole of the droplet generating member is dropped and attached; a voltage applier applying a voltage to the droplet so that the droplet can be dropped onto the target portion of the substrate; a volume measuring unit measuring the volume of the droplet; and a droplet control unit maintaining the volume of the droplet at a predetermined level based on the measured volume of the droplet.

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European Search Report for 06254255.0-2104 dated Nov. 24, 2006.
Osamu, et al., On-Demand Droplet Spotter for Preparing Pico-to Femtoliter Droplets on on Surfaces, Analytical Chemistry, vol. 73, No. 8, Apr. 15, 2001, pp. 1896-1902, XP-001030287.

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