Liquid droplet-jetting head, liquid droplet-jetting...

Details Liquid droplet-jetting head, liquid droplet-jetting... Liquid droplet-jetting head, liquid droplet-jetting...

2006-10-18

2008-12-02

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S047000, C347S044000

Reexamination Certificate

active

07458662

ABSTRACT:
In an ink-jet head having a plurality of nozzles for discharging liquid droplets, vibration is generated in a direction connecting two nozzles, of the nozzles, by the discharge operation performed at least one of the nozzles. In particular, when the printing frequency is in the vicinity of the secondary mode frequency (for example, 27.5 kHz) of the proper vibration of the ink-jet head, the crosstalk easily arises. The crosstalk is hardly caused when the ratio of the secondary mode frequency of the ink-jet head to the printing frequency is any one of a value of not more than 0.85, a value in a range of 1.25 to 1.96, and a value of not less than 4.59.

REFERENCES:
patent: 5502473 (1996-03-01), East et al.
patent: 6149258 (2000-11-01), Kimura
patent: 7048362 (2006-05-01), Takahashi
patent: 2003/0226906 (2003-12-01), Ivri
patent: 2785727 (1998-05-01), None
patent: 3125499 (2000-11-01), None
patent: 2004-160915 (2004-06-01), None

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