Inkjet printhead with quadrupole actuators

Details Inkjet printhead with quadrupole actuators Inkjet printhead with quadrupole actuators

2005-10-11

2009-06-23

Meier, Stephen D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S054000

Reexamination Certificate

active

07549735

ABSTRACT:
An inkjet printhead comprising: an array of ink chambers, each having a nozzle and an actuator for ejecting ink through the nozzle; wherein during use, the actuator initiates a quadrupole pressure pulse that is symmetrical about two orthogonal axes parallel to the plane of the nozzle, the orthogonal axes intersecting a mutually orthogonal axis extending through the center of the nozzle.

REFERENCES:
patent: 6203145 (2001-03-01), Jeanmaire et al.
patent: 6469725 (2002-10-01), Nagahata
patent: 6543879 (2003-04-01), Feinn et al.
patent: 6692108 (2004-02-01), Silverbrook et al.
patent: 2002/0113848 (2002-08-01), Anagnostopoulos et al.
patent: 2002/0149649 (2002-10-01), Moon et al.
patent: 2004/0155935 (2004-08-01), Silverbrook
patent: 2299787 (1996-10-01), None
patent: 62-94347 (1987-04-01), None

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