Device for printing droplet or ink on substrate or paper

Incremental printing of symbolic information – Ink jet – Controller

Reexamination Certificate

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Details

C347S020000, C347S047000

Reexamination Certificate

active

07600840

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.

REFERENCES:
patent: 5927547 (1999-07-01), Papen et al.
patent: 6513894 (2003-02-01), Chen et al.
patent: 1208912 (2002-05-01), None
patent: 1445016 (2004-08-01), None
patent: WO9744134 (1997-11-01), None
patent: WO03022438 (2003-03-01), None
European Search Report; EP06254255; Nov. 24, 2006.
On-Demand Droplet Spotter for Preparing Pico- to Femtoliter Droplets on Surfaces; Osamu Yogi, Tomonori Kawakami, Masayo Yamauchi, Jing Yong Ye, Mitsuru Ishikawa; Anal. Chem. 2001, 73, 1896—1902.
All the references cited in the Search Report are listed above.

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