Liquid droplet ejection apparatus

Details Liquid droplet ejection apparatus Liquid droplet ejection apparatus

2005-09-30

2008-12-09

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S005000, C347S067000, C347S068000

Reexamination Certificate

active

07461913

ABSTRACT:
The liquid droplet ejection apparatus comprises: a liquid droplet ejection head which includes a plurality of pressure chambers communicating with a plurality of nozzles through which droplets of liquid is ejected toward a recording medium; a plurality of resistance elements which determine pressure inside the pressure chambers, the resistance elements presenting in a number of equal to or less than a number of nozzles; and a determination circuit in which a bridge circuit is configured with a group of four of the resistance elements and determines a state of droplet ejection of each of the nozzles.

REFERENCES:
patent: 5757392 (1998-05-01), Zhang
patent: 6398329 (2002-06-01), Boyd et al.
patent: 6565172 (2003-05-01), Huang et al.
patent: 57-53366 (1982-03-01), None
patent: 3-272854 (1991-12-01), None
patent: 6-155733 (1994-06-01), None

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