Jetting timing determining method, liquid-droplet jetting...

Details Jetting timing determining method, liquid-droplet jetting... Jetting timing determining method, liquid-droplet jetting...

2006-11-28

2010-02-16

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S012000

Reexamination Certificate

active

07661788

ABSTRACT:
In a liquid-droplet jetting apparatus such as an ink-jet head having a plurality of nozzle rows formed therein, an ink is jetted from one of the nozzle rows and the ink is jetted from another nozzle row concurrently while changing delay times by each of which a jetting timing for the nozzle row is delayed with respect to a jetting timing for the another nozzle row. Then, an optimum image is determined among images formed by the ink jetted from these two nozzle rows, and a delay time in the jetting timings is extracted, among the delay times, which correspond to the optimum image. By determining the delay time in the nozzle rows in such a manner, the variation in jetting characteristics is small in the nozzle rows, thereby realizing satisfactory reproducibility of image.

REFERENCES:
patent: 5796416 (1998-08-01), Silverbrook
patent: 6719390 (2004-04-01), Howkins et al.
patent: 2005/0146547 (2005-07-01), Yeh et al.
patent: 2007/0200889 (2007-08-01), Iriguchi
patent: 2000263770 (2000-09-01), None
patent: 2005-271543 (2005-10-01), None

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