Method of ejecting microdroplets of ink

Details Method of ejecting microdroplets of ink Method of ejecting microdroplets of ink

2006-06-29

2009-06-23

Nguyen, Lam S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S009000, C347S011000

Reexamination Certificate

active

07549716

ABSTRACT:
The method of ejecting microdroplets of ink includes a first step for generating one ink column on the outside of the nozzle and for separating a tip end of the one ink column from a remaining part of the one ink column to form a microdroplet of ink on the outside of one nozzle, and a second step for controlling an ink volume velocity in the ink pressure chamber that is connected to the nozzle to generate another ink column and to push the another ink column out of the nozzle, thereby causing the another ink column to overtake and merge with the remaining part of the one ink column and to return into the nozzle while pulling the remaining part of the one ink column back into the nozzle.

REFERENCES:
patent: 4593291 (1986-06-01), Howkins
patent: 6183063 (2001-02-01), Bolash et al.
patent: 6273537 (2001-08-01), Hiwada
patent: 6312077 (2001-11-01), Araki
patent: 7125110 (2006-10-01), Merz et al.
patent: 4-36071 (1992-06-01), None
patent: 2000-141642 (2000-05-01), None
patent: 3159188 (2001-02-01), None
patent: 3491187 (2003-11-01), None

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