Jetting error detector, droplet jetting applicator and...

Details Jetting error detector, droplet jetting applicator and... Jetting error detector, droplet jetting applicator and...

2008-09-19

2011-10-25

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S019000

Reexamination Certificate

active

08042914

ABSTRACT:
A jetting error detector includes multiple input circuits configured to receive respective voltage values of multiple piezoelectric elements from a droplet jetting head configured to jet droplets through multiple nozzles by use of the multiple piezoelectric elements, a selection circuit configured to sequentially select one of the multiple input circuits, a judging unit configured to judge, based on the voltage value inputted to the selected input circuit, jetting quality of the nozzle for jetting the droplets by use of the piezoelectric element corresponding to the selected input circuit, and an output circuit configured to output a jetting quality judgment result of the nozzle.

REFERENCES:
patent: 7232199 (2007-06-01), Shinkawa et al.
patent: 7690744 (2010-04-01), Nakanishi et al.
patent: 2004/0223016 (2004-11-01), Koyama
patent: 2006/0017765 (2006-01-01), Sato
patent: 1454149 (2003-11-01), None
patent: 1608006 (2005-04-01), None
patent: 4-29851 (1992-01-01), None
patent: 11-334102 (1999-12-01), None

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